diff --git a/.gitignore b/.gitignore
index 92147b91..8b6369b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,10 @@ data/models/
 logs/
 artifacts/probability_calibration/auto_retrain_report.json
 artifacts/probability_calibration/candidates/
+artifacts/probability_calibration/default.backup-*.json
+artifacts/probability_calibration/default.local-backup-*.json
+artifacts/local_runtime/probability_calibration/auto_retrain_report.json
+artifacts/local_runtime/probability_calibration/candidates/
 
 # Python
 __pycache__/
@@ -45,4 +49,3 @@ frontend/*.tsbuildinfo
 # Browser extension build artifacts
 /extension.zip
 /extension-*.zip
-
diff --git a/artifacts/local_runtime/probability_calibration/auto_retrain_report.json b/artifacts/local_runtime/probability_calibration/auto_retrain_report.json
deleted file mode 100644
index a90686bc..00000000
--- a/artifacts/local_runtime/probability_calibration/auto_retrain_report.json
+++ /dev/null
@@ -1,62 +0,0 @@
-{
-  "ok": true,
-  "version": "emos-auto-20260421122743",
-  "generated_at": "2026-04-21T12:28:08.021388+00:00",
-  "candidate_dir": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743",
-  "candidate_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json",
-  "evaluation_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\evaluation_report.json",
-  "target_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.json",
-  "promote_requested": true,
-  "promoted": true,
-  "backup_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.backup-20260421122808.json",
-  "decision": {
-    "decision": "promote",
-    "ready_for_promotion": true,
-    "blocking_reasons": [],
-    "thresholds": {
-      "min_samples": 50,
-      "max_delta_crps": 0.0,
-      "max_delta_mae": 0.05,
-      "min_delta_bucket_hit_rate": -0.05
-    },
-    "metrics": {
-      "sample_count": 978,
-      "delta_crps": -0.05721,
-      "delta_mae": -0.034568,
-      "delta_bucket_hit_rate": -0.00409
-    }
-  },
-  "fit": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/fit_probability_calibration.py",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json",
-      "--version",
-      "emos-auto-20260421122743",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "evaluate": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/evaluate_probability_calibration.py",
-      "--calibration-file",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\evaluation_report.json",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "tests": null
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/decision_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/decision_report.json
deleted file mode 100644
index c24596ed..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/decision_report.json
+++ /dev/null
@@ -1,62 +0,0 @@
-{
-  "ok": true,
-  "version": "emos-auto-20260418212046",
-  "generated_at": "2026-04-18T21:21:04.160748+00:00",
-  "candidate_dir": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046",
-  "candidate_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046\\default.json",
-  "evaluation_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046\\evaluation_report.json",
-  "target_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.json",
-  "promote_requested": false,
-  "promoted": false,
-  "backup_path": null,
-  "decision": {
-    "decision": "promote",
-    "ready_for_promotion": true,
-    "blocking_reasons": [],
-    "thresholds": {
-      "min_samples": 50,
-      "max_delta_crps": 0.0,
-      "max_delta_mae": 0.05,
-      "min_delta_bucket_hit_rate": -0.05
-    },
-    "metrics": {
-      "sample_count": 847,
-      "delta_crps": -0.03617,
-      "delta_mae": -0.007896,
-      "delta_bucket_hit_rate": -0.009445
-    }
-  },
-  "fit": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/fit_probability_calibration.py",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046\\default.json",
-      "--version",
-      "emos-auto-20260418212046",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "evaluate": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/evaluate_probability_calibration.py",
-      "--calibration-file",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046\\default.json",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046\\evaluation_report.json",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "tests": null
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/default.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/default.json
deleted file mode 100644
index 06a4c5d9..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/default.json
+++ /dev/null
@@ -1,361 +0,0 @@
-{
-  "version": "emos-auto-20260418212046",
-  "trained_at": "2026-04-18T21:21:01.845585+00:00",
-  "global": {
-    "mu": {
-      "intercept": 0.2254302,
-      "raw_mu_coef": 0.6118983,
-      "deb_coef": 0.33808937,
-      "ens_median_coef": 0.05495855,
-      "max_so_far_gap_coef": -0.0932547
-    },
-    "sigma": {
-      "intercept": -0.63488372,
-      "raw_sigma_coef": 0.25697024,
-      "spread_coef": 0.27252389,
-      "peak_flag_coef": 0.25649506,
-      "max_so_far_gap_coef": 0.1247358
-    }
-  },
-  "sigma_constraints": {
-    "min_ratio": 0.85,
-    "max_ratio": 1.35,
-    "absolute_min": 0.25,
-    "absolute_max": 3.0
-  },
-  "selection_guardrails": {
-    "max_mae_increase": 0.02,
-    "max_bucket_hit_drop": 0.01,
-    "max_bucket_brier_increase": 0.05
-  },
-  "blending": {
-    "alpha_mu": 0.05,
-    "alpha_sigma": 1.0
-  },
-  "cities": {
-    "jakarta": {
-      "samples": 14,
-      "mu_bias": -0.311632,
-      "sigma_scale": 1.017611,
-      "confidence": 1.0
-    },
-    "tokyo": {
-      "samples": 20,
-      "mu_bias": -0.66582,
-      "sigma_scale": 0.811034,
-      "confidence": 1.0
-    },
-    "tel aviv": {
-      "samples": 19,
-      "mu_bias": 0.528539,
-      "sigma_scale": 1.575887,
-      "confidence": 1.0
-    },
-    "toronto": {
-      "samples": 19,
-      "mu_bias": 0.199116,
-      "sigma_scale": 1.357064,
-      "confidence": 1.0
-    },
-    "buenos aires": {
-      "samples": 19,
-      "mu_bias": -0.805689,
-      "sigma_scale": 1.360136,
-      "confidence": 1.0
-    },
-    "wellington": {
-      "samples": 20,
-      "mu_bias": -0.205656,
-      "sigma_scale": 0.924063,
-      "confidence": 1.0
-    },
-    "ankara": {
-      "samples": 20,
-      "mu_bias": 0.370092,
-      "sigma_scale": 1.198264,
-      "confidence": 1.0
-    },
-    "new york": {
-      "samples": 18,
-      "mu_bias": 0.951787,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "los angeles": {
-      "samples": 17,
-      "mu_bias": -0.194962,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "san francisco": {
-      "samples": 17,
-      "mu_bias": 1.147953,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "aurora": {
-      "samples": 17,
-      "mu_bias": 1.294945,
-      "sigma_scale": 0.970849,
-      "confidence": 1.0
-    },
-    "austin": {
-      "samples": 17,
-      "mu_bias": 1.225084,
-      "sigma_scale": 1.935455,
-      "confidence": 1.0
-    },
-    "houston": {
-      "samples": 17,
-      "mu_bias": 0.325773,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "mexico city": {
-      "samples": 17,
-      "mu_bias": 0.390722,
-      "sigma_scale": 1.324935,
-      "confidence": 1.0
-    },
-    "chicago": {
-      "samples": 18,
-      "mu_bias": 2.419404,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "dallas": {
-      "samples": 18,
-      "mu_bias": 0.47057,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "miami": {
-      "samples": 19,
-      "mu_bias": -3.137033,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "atlanta": {
-      "samples": 19,
-      "mu_bias": -2.30076,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "seattle": {
-      "samples": 18,
-      "mu_bias": -0.201183,
-      "sigma_scale": 1.232981,
-      "confidence": 1.0
-    },
-    "lucknow": {
-      "samples": 20,
-      "mu_bias": -2.200374,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "helsinki": {
-      "samples": 14,
-      "mu_bias": 0.802133,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "chengdu": {
-      "samples": 18,
-      "mu_bias": 0.606095,
-      "sigma_scale": 0.827307,
-      "confidence": 1.0
-    },
-    "chongqing": {
-      "samples": 18,
-      "mu_bias": 0.474194,
-      "sigma_scale": 1.138478,
-      "confidence": 1.0
-    },
-    "shenzhen": {
-      "samples": 19,
-      "mu_bias": -0.465199,
-      "sigma_scale": 0.840945,
-      "confidence": 1.0
-    },
-    "guangzhou": {
-      "samples": 4,
-      "mu_bias": -2.182386,
-      "sigma_scale": 2.0,
-      "confidence": 0.5
-    },
-    "beijing": {
-      "samples": 18,
-      "mu_bias": -0.262371,
-      "sigma_scale": 1.226611,
-      "confidence": 1.0
-    },
-    "wuhan": {
-      "samples": 18,
-      "mu_bias": -0.51351,
-      "sigma_scale": 1.47005,
-      "confidence": 1.0
-    },
-    "panama city": {
-      "samples": 14,
-      "mu_bias": -0.045915,
-      "sigma_scale": 1.357288,
-      "confidence": 1.0
-    },
-    "lagos": {
-      "samples": 7,
-      "mu_bias": 0.519428,
-      "sigma_scale": 1.514993,
-      "confidence": 0.875
-    },
-    "jeddah": {
-      "samples": 8,
-      "mu_bias": 1.145929,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "shanghai": {
-      "samples": 21,
-      "mu_bias": 0.272435,
-      "sigma_scale": 0.957354,
-      "confidence": 1.0
-    },
-    "moscow": {
-      "samples": 18,
-      "mu_bias": -0.518587,
-      "sigma_scale": 0.862574,
-      "confidence": 1.0
-    },
-    "seoul": {
-      "samples": 20,
-      "mu_bias": 0.964252,
-      "sigma_scale": 0.776068,
-      "confidence": 1.0
-    },
-    "busan": {
-      "samples": 14,
-      "mu_bias": -0.216931,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "hong kong": {
-      "samples": 22,
-      "mu_bias": 0.379808,
-      "sigma_scale": 0.576369,
-      "confidence": 1.0
-    },
-    "lau fau shan": {
-      "samples": 17,
-      "mu_bias": 0.525219,
-      "sigma_scale": 0.779717,
-      "confidence": 1.0
-    },
-    "taipei": {
-      "samples": 21,
-      "mu_bias": 0.357955,
-      "sigma_scale": 0.5,
-      "confidence": 1.0
-    },
-    "singapore": {
-      "samples": 20,
-      "mu_bias": 0.128349,
-      "sigma_scale": 1.087276,
-      "confidence": 1.0
-    },
-    "kuala lumpur": {
-      "samples": 14,
-      "mu_bias": 0.121108,
-      "sigma_scale": 1.744875,
-      "confidence": 1.0
-    },
-    "cape town": {
-      "samples": 7,
-      "mu_bias": 0.455546,
-      "sigma_scale": 2.0,
-      "confidence": 0.875
-    },
-    "paris": {
-      "samples": 19,
-      "mu_bias": -0.127694,
-      "sigma_scale": 1.230108,
-      "confidence": 1.0
-    },
-    "madrid": {
-      "samples": 19,
-      "mu_bias": -0.532308,
-      "sigma_scale": 1.982566,
-      "confidence": 1.0
-    },
-    "munich": {
-      "samples": 19,
-      "mu_bias": 0.508653,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "milan": {
-      "samples": 20,
-      "mu_bias": -0.06599,
-      "sigma_scale": 1.940436,
-      "confidence": 1.0
-    },
-    "warsaw": {
-      "samples": 20,
-      "mu_bias": -0.390534,
-      "sigma_scale": 0.761538,
-      "confidence": 1.0
-    },
-    "amsterdam": {
-      "samples": 14,
-      "mu_bias": 0.360733,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "istanbul": {
-      "samples": 17,
-      "mu_bias": -0.52807,
-      "sigma_scale": 0.5,
-      "confidence": 1.0
-    },
-    "london": {
-      "samples": 19,
-      "mu_bias": 0.26042,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "sao paulo": {
-      "samples": 19,
-      "mu_bias": -0.628782,
-      "sigma_scale": 1.610083,
-      "confidence": 1.0
-    },
-    "manila": {
-      "samples": 3,
-      "mu_bias": -0.780441,
-      "sigma_scale": 2.0,
-      "confidence": 0.375
-    },
-    "karachi": {
-      "samples": 3,
-      "mu_bias": -1.489692,
-      "sigma_scale": 2.0,
-      "confidence": 0.375
-    }
-  },
-  "metrics": {
-    "sample_count": 847,
-    "mean_crps": 1.366484,
-    "legacy_mean_crps": 1.395994,
-    "legacy_mean_mae": 1.587426,
-    "legacy_bucket_hit_rate": 0.451004,
-    "legacy_bucket_brier": 0.833743,
-    "selected_mean_crps": 1.353599,
-    "selected_mean_mae": 1.579253,
-    "selected_bucket_hit_rate": 0.44392,
-    "selected_bucket_brier": 0.802857,
-    "selected_score": 2.947788,
-    "legacy_score": 3.003539,
-    "filled_actual_from_history": 0,
-    "settlement_history_city_count": 30,
-    "legacy_archive_samples": 54
-  },
-  "source": "artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260418212046\\default.json"
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/evaluation_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/evaluation_report.json
deleted file mode 100644
index 4cc798a8..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260418212046/evaluation_report.json
+++ /dev/null
@@ -1,482 +0,0 @@
-{
-  "summary": {
-    "sample_count": 847,
-    "filled_actual_from_history": 0,
-    "legacy": {
-      "mean_crps": 1.395994,
-      "mean_mae": 1.587426,
-      "bucket_hit_rate": 0.451004
-    },
-    "emos": {
-      "mean_crps": 1.359824,
-      "mean_mae": 1.57953,
-      "bucket_hit_rate": 0.441558
-    },
-    "delta": {
-      "crps": -0.03617,
-      "mae": -0.007896,
-      "bucket_hit_rate": -0.009445
-    }
-  },
-  "by_city": {
-    "amsterdam": {
-      "samples": 14,
-      "legacy_mean_crps": 0.987415,
-      "emos_mean_crps": 0.961828,
-      "legacy_mean_mae": 1.132857,
-      "emos_mean_mae": 1.125179,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.428571
-    },
-    "ankara": {
-      "samples": 20,
-      "legacy_mean_crps": 0.601736,
-      "emos_mean_crps": 0.564683,
-      "legacy_mean_mae": 0.6865,
-      "emos_mean_mae": 0.681341,
-      "legacy_bucket_hit_rate": 0.45,
-      "emos_bucket_hit_rate": 0.45
-    },
-    "atlanta": {
-      "samples": 19,
-      "legacy_mean_crps": 4.694941,
-      "emos_mean_crps": 4.720441,
-      "legacy_mean_mae": 5.1,
-      "emos_mean_mae": 5.14654,
-      "legacy_bucket_hit_rate": 0.157895,
-      "emos_bucket_hit_rate": 0.105263
-    },
-    "aurora": {
-      "samples": 17,
-      "legacy_mean_crps": 3.480078,
-      "emos_mean_crps": 3.084405,
-      "legacy_mean_mae": 3.74,
-      "emos_mean_mae": 3.733189,
-      "legacy_bucket_hit_rate": 0.058824,
-      "emos_bucket_hit_rate": 0.058824
-    },
-    "austin": {
-      "samples": 17,
-      "legacy_mean_crps": 1.644367,
-      "emos_mean_crps": 1.558512,
-      "legacy_mean_mae": 1.788824,
-      "emos_mean_mae": 1.724237,
-      "legacy_bucket_hit_rate": 0.470588,
-      "emos_bucket_hit_rate": 0.470588
-    },
-    "beijing": {
-      "samples": 18,
-      "legacy_mean_crps": 1.504991,
-      "emos_mean_crps": 1.535402,
-      "legacy_mean_mae": 1.943889,
-      "emos_mean_mae": 1.93954,
-      "legacy_bucket_hit_rate": 0.388889,
-      "emos_bucket_hit_rate": 0.388889
-    },
-    "buenos aires": {
-      "samples": 19,
-      "legacy_mean_crps": 1.50594,
-      "emos_mean_crps": 1.515676,
-      "legacy_mean_mae": 1.774737,
-      "emos_mean_mae": 1.776997,
-      "legacy_bucket_hit_rate": 0.473684,
-      "emos_bucket_hit_rate": 0.473684
-    },
-    "busan": {
-      "samples": 14,
-      "legacy_mean_crps": 1.32137,
-      "emos_mean_crps": 1.30751,
-      "legacy_mean_mae": 1.578571,
-      "emos_mean_mae": 1.574854,
-      "legacy_bucket_hit_rate": 0.285714,
-      "emos_bucket_hit_rate": 0.285714
-    },
-    "cape town": {
-      "samples": 7,
-      "legacy_mean_crps": 1.306883,
-      "emos_mean_crps": 1.279311,
-      "legacy_mean_mae": 1.624286,
-      "emos_mean_mae": 1.606502,
-      "legacy_bucket_hit_rate": 0.142857,
-      "emos_bucket_hit_rate": 0.142857
-    },
-    "chengdu": {
-      "samples": 18,
-      "legacy_mean_crps": 0.97712,
-      "emos_mean_crps": 0.948547,
-      "legacy_mean_mae": 1.121667,
-      "emos_mean_mae": 1.117198,
-      "legacy_bucket_hit_rate": 0.444444,
-      "emos_bucket_hit_rate": 0.444444
-    },
-    "chicago": {
-      "samples": 18,
-      "legacy_mean_crps": 2.968133,
-      "emos_mean_crps": 2.884946,
-      "legacy_mean_mae": 3.378333,
-      "emos_mean_mae": 3.342852,
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-    "chongqing": {
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-      "legacy_mean_crps": 1.209798,
-      "emos_mean_crps": 1.219771,
-      "legacy_mean_mae": 1.563333,
-      "emos_mean_mae": 1.553719,
-      "legacy_bucket_hit_rate": 0.333333,
-      "emos_bucket_hit_rate": 0.333333
-    },
-    "dallas": {
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-      "legacy_mean_crps": 1.514743,
-      "emos_mean_crps": 1.403035,
-      "legacy_mean_mae": 1.562778,
-      "emos_mean_mae": 1.576013,
-      "legacy_bucket_hit_rate": 0.444444,
-      "emos_bucket_hit_rate": 0.444444
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-    "guangzhou": {
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-      "legacy_mean_crps": 2.173291,
-      "emos_mean_crps": 2.087242,
-      "legacy_mean_mae": 2.235,
-      "emos_mean_mae": 2.215336,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "helsinki": {
-      "samples": 14,
-      "legacy_mean_crps": 0.780006,
-      "emos_mean_crps": 0.734291,
-      "legacy_mean_mae": 0.966429,
-      "emos_mean_mae": 0.930396,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "hong kong": {
-      "samples": 22,
-      "legacy_mean_crps": 0.606459,
-      "emos_mean_crps": 0.577355,
-      "legacy_mean_mae": 0.651364,
-      "emos_mean_mae": 0.648663,
-      "legacy_bucket_hit_rate": 0.727273,
-      "emos_bucket_hit_rate": 0.681818
-    },
-    "houston": {
-      "samples": 17,
-      "legacy_mean_crps": 1.585453,
-      "emos_mean_crps": 1.529507,
-      "legacy_mean_mae": 1.874118,
-      "emos_mean_mae": 1.872825,
-      "legacy_bucket_hit_rate": 0.294118,
-      "emos_bucket_hit_rate": 0.294118
-    },
-    "istanbul": {
-      "samples": 17,
-      "legacy_mean_crps": 0.595311,
-      "emos_mean_crps": 0.552377,
-      "legacy_mean_mae": 0.556471,
-      "emos_mean_mae": 0.539751,
-      "legacy_bucket_hit_rate": 0.823529,
-      "emos_bucket_hit_rate": 0.823529
-    },
-    "jakarta": {
-      "samples": 14,
-      "legacy_mean_crps": 0.900747,
-      "emos_mean_crps": 0.893463,
-      "legacy_mean_mae": 1.127857,
-      "emos_mean_mae": 1.120582,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "jeddah": {
-      "samples": 8,
-      "legacy_mean_crps": 1.895708,
-      "emos_mean_crps": 1.845136,
-      "legacy_mean_mae": 2.25125,
-      "emos_mean_mae": 2.252419,
-      "legacy_bucket_hit_rate": 0.375,
-      "emos_bucket_hit_rate": 0.375
-    },
-    "karachi": {
-      "samples": 3,
-      "legacy_mean_crps": 3.800591,
-      "emos_mean_crps": 3.864419,
-      "legacy_mean_mae": 4.373333,
-      "emos_mean_mae": 4.370732,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "kuala lumpur": {
-      "samples": 14,
-      "legacy_mean_crps": 1.269324,
-      "emos_mean_crps": 1.256321,
-      "legacy_mean_mae": 1.52,
-      "emos_mean_mae": 1.514488,
-      "legacy_bucket_hit_rate": 0.357143,
-      "emos_bucket_hit_rate": 0.357143
-    },
-    "lagos": {
-      "samples": 7,
-      "legacy_mean_crps": 0.906342,
-      "emos_mean_crps": 0.917018,
-      "legacy_mean_mae": 1.254286,
-      "emos_mean_mae": 1.237313,
-      "legacy_bucket_hit_rate": 0.142857,
-      "emos_bucket_hit_rate": 0.142857
-    },
-    "lau fau shan": {
-      "samples": 17,
-      "legacy_mean_crps": 0.803404,
-      "emos_mean_crps": 0.761944,
-      "legacy_mean_mae": 0.828824,
-      "emos_mean_mae": 0.817151,
-      "legacy_bucket_hit_rate": 0.529412,
-      "emos_bucket_hit_rate": 0.529412
-    },
-    "london": {
-      "samples": 19,
-      "legacy_mean_crps": 1.372253,
-      "emos_mean_crps": 1.343838,
-      "legacy_mean_mae": 1.453684,
-      "emos_mean_mae": 1.45014,
-      "legacy_bucket_hit_rate": 0.526316,
-      "emos_bucket_hit_rate": 0.526316
-    },
-    "los angeles": {
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-      "legacy_mean_crps": 1.618329,
-      "emos_mean_crps": 1.554333,
-      "legacy_mean_mae": 1.781765,
-      "emos_mean_mae": 1.784064,
-      "legacy_bucket_hit_rate": 0.352941,
-      "emos_bucket_hit_rate": 0.352941
-    },
-    "lucknow": {
-      "samples": 20,
-      "legacy_mean_crps": 1.81502,
-      "emos_mean_crps": 1.714879,
-      "legacy_mean_mae": 2.2115,
-      "emos_mean_mae": 2.112162,
-      "legacy_bucket_hit_rate": 0.1,
-      "emos_bucket_hit_rate": 0.15
-    },
-    "madrid": {
-      "samples": 19,
-      "legacy_mean_crps": 1.407792,
-      "emos_mean_crps": 1.418606,
-      "legacy_mean_mae": 1.620526,
-      "emos_mean_mae": 1.622569,
-      "legacy_bucket_hit_rate": 0.473684,
-      "emos_bucket_hit_rate": 0.526316
-    },
-    "manila": {
-      "samples": 3,
-      "legacy_mean_crps": 1.623393,
-      "emos_mean_crps": 1.64462,
-      "legacy_mean_mae": 2.02,
-      "emos_mean_mae": 2.009874,
-      "legacy_bucket_hit_rate": 0.333333,
-      "emos_bucket_hit_rate": 0.333333
-    },
-    "mexico city": {
-      "samples": 17,
-      "legacy_mean_crps": 0.584555,
-      "emos_mean_crps": 0.554658,
-      "legacy_mean_mae": 0.758824,
-      "emos_mean_mae": 0.732893,
-      "legacy_bucket_hit_rate": 0.470588,
-      "emos_bucket_hit_rate": 0.470588
-    },
-    "miami": {
-      "samples": 19,
-      "legacy_mean_crps": 3.579308,
-      "emos_mean_crps": 3.623019,
-      "legacy_mean_mae": 3.843684,
-      "emos_mean_mae": 3.903567,
-      "legacy_bucket_hit_rate": 0.473684,
-      "emos_bucket_hit_rate": 0.421053
-    },
-    "milan": {
-      "samples": 20,
-      "legacy_mean_crps": 1.281634,
-      "emos_mean_crps": 1.178909,
-      "legacy_mean_mae": 1.358,
-      "emos_mean_mae": 1.346126,
-      "legacy_bucket_hit_rate": 0.3,
-      "emos_bucket_hit_rate": 0.3
-    },
-    "moscow": {
-      "samples": 18,
-      "legacy_mean_crps": 0.753709,
-      "emos_mean_crps": 0.731335,
-      "legacy_mean_mae": 0.8,
-      "emos_mean_mae": 0.785323,
-      "legacy_bucket_hit_rate": 0.666667,
-      "emos_bucket_hit_rate": 0.666667
-    },
-    "munich": {
-      "samples": 19,
-      "legacy_mean_crps": 1.456455,
-      "emos_mean_crps": 1.41921,
-      "legacy_mean_mae": 1.704737,
-      "emos_mean_mae": 1.695068,
-      "legacy_bucket_hit_rate": 0.210526,
-      "emos_bucket_hit_rate": 0.210526
-    },
-    "new york": {
-      "samples": 18,
-      "legacy_mean_crps": 2.359876,
-      "emos_mean_crps": 2.341163,
-      "legacy_mean_mae": 2.695,
-      "emos_mean_mae": 2.699524,
-      "legacy_bucket_hit_rate": 0.333333,
-      "emos_bucket_hit_rate": 0.333333
-    },
-    "panama city": {
-      "samples": 14,
-      "legacy_mean_crps": 0.361716,
-      "emos_mean_crps": 0.33962,
-      "legacy_mean_mae": 0.469286,
-      "emos_mean_mae": 0.463352,
-      "legacy_bucket_hit_rate": 0.785714,
-      "emos_bucket_hit_rate": 0.785714
-    },
-    "paris": {
-      "samples": 19,
-      "legacy_mean_crps": 0.85199,
-      "emos_mean_crps": 0.832136,
-      "legacy_mean_mae": 0.873158,
-      "emos_mean_mae": 0.868655,
-      "legacy_bucket_hit_rate": 0.736842,
-      "emos_bucket_hit_rate": 0.736842
-    },
-    "san francisco": {
-      "samples": 17,
-      "legacy_mean_crps": 2.69808,
-      "emos_mean_crps": 2.593537,
-      "legacy_mean_mae": 2.870588,
-      "emos_mean_mae": 2.850331,
-      "legacy_bucket_hit_rate": 0.411765,
-      "emos_bucket_hit_rate": 0.411765
-    },
-    "sao paulo": {
-      "samples": 19,
-      "legacy_mean_crps": 1.011902,
-      "emos_mean_crps": 1.01773,
-      "legacy_mean_mae": 1.254737,
-      "emos_mean_mae": 1.249211,
-      "legacy_bucket_hit_rate": 0.578947,
-      "emos_bucket_hit_rate": 0.473684
-    },
-    "seattle": {
-      "samples": 18,
-      "legacy_mean_crps": 0.687541,
-      "emos_mean_crps": 0.652651,
-      "legacy_mean_mae": 0.798333,
-      "emos_mean_mae": 0.790552,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "seoul": {
-      "samples": 20,
-      "legacy_mean_crps": 1.39114,
-      "emos_mean_crps": 1.369958,
-      "legacy_mean_mae": 1.7505,
-      "emos_mean_mae": 1.726451,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "shanghai": {
-      "samples": 21,
-      "legacy_mean_crps": 1.422167,
-      "emos_mean_crps": 1.423053,
-      "legacy_mean_mae": 1.694286,
-      "emos_mean_mae": 1.692691,
-      "legacy_bucket_hit_rate": 0.571429,
-      "emos_bucket_hit_rate": 0.571429
-    },
-    "shenzhen": {
-      "samples": 19,
-      "legacy_mean_crps": 0.486563,
-      "emos_mean_crps": 0.473602,
-      "legacy_mean_mae": 0.612105,
-      "emos_mean_mae": 0.603981,
-      "legacy_bucket_hit_rate": 0.631579,
-      "emos_bucket_hit_rate": 0.578947
-    },
-    "singapore": {
-      "samples": 20,
-      "legacy_mean_crps": 0.866487,
-      "emos_mean_crps": 0.850527,
-      "legacy_mean_mae": 1.106,
-      "emos_mean_mae": 1.094612,
-      "legacy_bucket_hit_rate": 0.35,
-      "emos_bucket_hit_rate": 0.35
-    },
-    "taipei": {
-      "samples": 21,
-      "legacy_mean_crps": 0.754907,
-      "emos_mean_crps": 0.69014,
-      "legacy_mean_mae": 0.699524,
-      "emos_mean_mae": 0.702462,
-      "legacy_bucket_hit_rate": 0.571429,
-      "emos_bucket_hit_rate": 0.571429
-    },
-    "tel aviv": {
-      "samples": 19,
-      "legacy_mean_crps": 0.700721,
-      "emos_mean_crps": 0.65593,
-      "legacy_mean_mae": 0.788421,
-      "emos_mean_mae": 0.768234,
-      "legacy_bucket_hit_rate": 0.473684,
-      "emos_bucket_hit_rate": 0.473684
-    },
-    "tokyo": {
-      "samples": 20,
-      "legacy_mean_crps": 0.837186,
-      "emos_mean_crps": 0.828923,
-      "legacy_mean_mae": 0.993,
-      "emos_mean_mae": 0.990435,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "toronto": {
-      "samples": 19,
-      "legacy_mean_crps": 2.51112,
-      "emos_mean_crps": 2.486868,
-      "legacy_mean_mae": 2.751053,
-      "emos_mean_mae": 2.756704,
-      "legacy_bucket_hit_rate": 0.315789,
-      "emos_bucket_hit_rate": 0.315789
-    },
-    "warsaw": {
-      "samples": 20,
-      "legacy_mean_crps": 0.483353,
-      "emos_mean_crps": 0.474875,
-      "legacy_mean_mae": 0.591,
-      "emos_mean_mae": 0.590616,
-      "legacy_bucket_hit_rate": 0.75,
-      "emos_bucket_hit_rate": 0.7
-    },
-    "wellington": {
-      "samples": 20,
-      "legacy_mean_crps": 0.723469,
-      "emos_mean_crps": 0.71472,
-      "legacy_mean_mae": 0.877,
-      "emos_mean_mae": 0.877932,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "wuhan": {
-      "samples": 18,
-      "legacy_mean_crps": 1.12801,
-      "emos_mean_crps": 1.115206,
-      "legacy_mean_mae": 1.243333,
-      "emos_mean_mae": 1.242457,
-      "legacy_bucket_hit_rate": 0.611111,
-      "emos_bucket_hit_rate": 0.611111
-    }
-  }
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/decision_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/decision_report.json
deleted file mode 100644
index 240dea22..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/decision_report.json
+++ /dev/null
@@ -1,62 +0,0 @@
-{
-  "ok": true,
-  "version": "emos-auto-20260421115828",
-  "generated_at": "2026-04-21T11:58:32.490537+00:00",
-  "candidate_dir": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828",
-  "candidate_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828\\default.json",
-  "evaluation_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828\\evaluation_report.json",
-  "target_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.json",
-  "promote_requested": false,
-  "promoted": false,
-  "backup_path": null,
-  "decision": {
-    "decision": "promote",
-    "ready_for_promotion": true,
-    "blocking_reasons": [],
-    "thresholds": {
-      "min_samples": 50,
-      "max_delta_crps": 0.0,
-      "max_delta_mae": 0.05,
-      "min_delta_bucket_hit_rate": -0.05
-    },
-    "metrics": {
-      "sample_count": 74,
-      "delta_crps": -0.142868,
-      "delta_mae": -0.056741,
-      "delta_bucket_hit_rate": 0.0
-    }
-  },
-  "fit": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/fit_probability_calibration.py",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828\\default.json",
-      "--version",
-      "emos-auto-20260421115828",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "evaluate": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/evaluate_probability_calibration.py",
-      "--calibration-file",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828\\default.json",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828\\evaluation_report.json",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "tests": null
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/default.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/default.json
deleted file mode 100644
index c1ce49df..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/default.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "version": "emos-auto-20260421115828",
-  "trained_at": "2026-04-21T11:58:31.424860+00:00",
-  "global": {
-    "mu": {
-      "intercept": 2.60074353,
-      "raw_mu_coef": 1.97765258,
-      "deb_coef": -1.37457626,
-      "ens_median_coef": 0.10693472,
-      "max_so_far_gap_coef": -0.58256593
-    },
-    "sigma": {
-      "intercept": 0.6373609,
-      "raw_sigma_coef": -1.41537225,
-      "spread_coef": 2.12997577,
-      "peak_flag_coef": -0.08633203,
-      "max_so_far_gap_coef": -0.00716383
-    }
-  },
-  "sigma_constraints": {
-    "min_ratio": 0.85,
-    "max_ratio": 1.35,
-    "absolute_min": 0.25,
-    "absolute_max": 3.0
-  },
-  "selection_guardrails": {
-    "max_mae_increase": 0.02,
-    "max_bucket_hit_drop": 0.01,
-    "max_bucket_brier_increase": 0.05
-  },
-  "blending": {
-    "alpha_mu": 0.05,
-    "alpha_sigma": 0.7
-  },
-  "cities": {
-    "tokyo": {
-      "samples": 5,
-      "mu_bias": 2.101101,
-      "sigma_scale": 2.0,
-      "confidence": 0.625
-    },
-    "ankara": {
-      "samples": 6,
-      "mu_bias": -0.523145,
-      "sigma_scale": 1.139849,
-      "confidence": 0.75
-    },
-    "istanbul": {
-      "samples": 3,
-      "mu_bias": -0.285183,
-      "sigma_scale": 0.550171,
-      "confidence": 0.375
-    },
-    "hong kong": {
-      "samples": 7,
-      "mu_bias": 3.234676,
-      "sigma_scale": 2.0,
-      "confidence": 0.875
-    },
-    "taipei": {
-      "samples": 5,
-      "mu_bias": 4.731246,
-      "sigma_scale": 2.0,
-      "confidence": 0.625
-    },
-    "busan": {
-      "samples": 3,
-      "mu_bias": 0.177772,
-      "sigma_scale": 2.0,
-      "confidence": 0.375
-    },
-    "seoul": {
-      "samples": 3,
-      "mu_bias": -3.070325,
-      "sigma_scale": 1.462196,
-      "confidence": 0.375
-    },
-    "milan": {
-      "samples": 3,
-      "mu_bias": -4.249866,
-      "sigma_scale": 2.0,
-      "confidence": 0.375
-    },
-    "shanghai": {
-      "samples": 3,
-      "mu_bias": 1.080039,
-      "sigma_scale": 1.638119,
-      "confidence": 0.375
-    },
-    "warsaw": {
-      "samples": 3,
-      "mu_bias": -1.68611,
-      "sigma_scale": 1.38114,
-      "confidence": 0.375
-    }
-  },
-  "metrics": {
-    "sample_count": 74,
-    "mean_crps": 3.181501,
-    "legacy_mean_crps": 3.474108,
-    "legacy_mean_mae": 3.679324,
-    "legacy_bucket_hit_rate": 0.5,
-    "legacy_bucket_brier": 0.855395,
-    "selected_mean_crps": 3.322469,
-    "selected_mean_mae": 3.618254,
-    "selected_bucket_hit_rate": 0.5,
-    "selected_bucket_brier": 0.863048,
-    "selected_score": 5.08158,
-    "legacy_score": 5.233586,
-    "filled_actual_from_history": 0,
-    "settlement_history_city_count": 30,
-    "legacy_archive_samples": 54
-  },
-  "source": "artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421115828\\default.json"
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/evaluation_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/evaluation_report.json
deleted file mode 100644
index f574035d..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421115828/evaluation_report.json
+++ /dev/null
@@ -1,293 +0,0 @@
-{
-  "summary": {
-    "sample_count": 74,
-    "filled_actual_from_history": 0,
-    "legacy": {
-      "mean_crps": 3.474108,
-      "mean_mae": 3.679324,
-      "bucket_hit_rate": 0.5
-    },
-    "emos": {
-      "mean_crps": 3.33124,
-      "mean_mae": 3.622584,
-      "bucket_hit_rate": 0.5
-    },
-    "delta": {
-      "crps": -0.142868,
-      "mae": -0.056741,
-      "bucket_hit_rate": 0.0
-    }
-  },
-  "by_city": {
-    "ankara": {
-      "samples": 6,
-      "legacy_mean_crps": 1.365135,
-      "emos_mean_crps": 1.392829,
-      "legacy_mean_mae": 1.466667,
-      "emos_mean_mae": 1.444819,
-      "legacy_bucket_hit_rate": 0.666667,
-      "emos_bucket_hit_rate": 0.666667
-    },
-    "atlanta": {
-      "samples": 2,
-      "legacy_mean_crps": 30.449382,
-      "emos_mean_crps": 29.886236,
-      "legacy_mean_mae": 32.015,
-      "emos_mean_mae": 31.322804,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "buenos aires": {
-      "samples": 2,
-      "legacy_mean_crps": 9.113412,
-      "emos_mean_crps": 8.463522,
-      "legacy_mean_mae": 10.27,
-      "emos_mean_mae": 10.024533,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "busan": {
-      "samples": 3,
-      "legacy_mean_crps": 0.276202,
-      "emos_mean_crps": 0.326485,
-      "legacy_mean_mae": 0.3,
-      "emos_mean_mae": 0.239636,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "chengdu": {
-      "samples": 1,
-      "legacy_mean_crps": 0.306469,
-      "emos_mean_crps": 0.378812,
-      "legacy_mean_mae": 0.3,
-      "emos_mean_mae": 0.153224,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "chicago": {
-      "samples": 1,
-      "legacy_mean_crps": 1.250268,
-      "emos_mean_crps": 0.714669,
-      "legacy_mean_mae": 0.0,
-      "emos_mean_mae": 0.319756,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "dallas": {
-      "samples": 1,
-      "legacy_mean_crps": 2.173363,
-      "emos_mean_crps": 0.840297,
-      "legacy_mean_mae": 0.0,
-      "emos_mean_mae": 1.028146,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "hong kong": {
-      "samples": 7,
-      "legacy_mean_crps": 0.706099,
-      "emos_mean_crps": 0.731926,
-      "legacy_mean_mae": 0.657143,
-      "emos_mean_mae": 0.669911,
-      "legacy_bucket_hit_rate": 0.714286,
-      "emos_bucket_hit_rate": 0.571429
-    },
-    "istanbul": {
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-      "legacy_mean_crps": 1.264103,
-      "emos_mean_crps": 1.214967,
-      "legacy_mean_mae": 1.5,
-      "emos_mean_mae": 1.469837,
-      "legacy_bucket_hit_rate": 0.333333,
-      "emos_bucket_hit_rate": 0.666667
-    },
-    "london": {
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-      "legacy_mean_crps": 3.885033,
-      "emos_mean_crps": 3.799841,
-      "legacy_mean_mae": 4.135,
-      "emos_mean_mae": 4.027503,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "lucknow": {
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-      "legacy_mean_crps": 2.487193,
-      "emos_mean_crps": 2.107441,
-      "legacy_mean_mae": 3.205,
-      "emos_mean_mae": 2.876943,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "madrid": {
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-      "legacy_mean_crps": 6.27726,
-      "emos_mean_crps": 5.810228,
-      "legacy_mean_mae": 7.33,
-      "emos_mean_mae": 7.195133,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "miami": {
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-      "legacy_mean_crps": 28.637631,
-      "emos_mean_crps": 27.592664,
-      "legacy_mean_mae": 30.175,
-      "emos_mean_mae": 29.284979,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "milan": {
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-      "legacy_mean_crps": 4.401392,
-      "emos_mean_crps": 3.782613,
-      "legacy_mean_mae": 4.06,
-      "emos_mean_mae": 3.989808,
-      "legacy_bucket_hit_rate": 0.666667,
-      "emos_bucket_hit_rate": 0.666667
-    },
-    "munich": {
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-      "emos_mean_crps": 2.990712,
-      "legacy_mean_mae": 3.64,
-      "emos_mean_mae": 3.61502,
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-      "emos_bucket_hit_rate": 0.0
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-    "new york": {
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-      "legacy_mean_crps": 3.692845,
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-      "emos_bucket_hit_rate": 0.0
-    },
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-      "emos_bucket_hit_rate": 0.5
-    },
-    "sao paulo": {
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-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "seattle": {
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-      "legacy_mean_crps": 0.315488,
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-      "legacy_mean_mae": 0.0,
-      "emos_mean_mae": 0.673609,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "seoul": {
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-      "legacy_mean_crps": 0.508331,
-      "emos_mean_crps": 0.520762,
-      "legacy_mean_mae": 0.2,
-      "emos_mean_mae": 0.247862,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "shanghai": {
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-      "legacy_mean_crps": 0.299116,
-      "emos_mean_crps": 0.402453,
-      "legacy_mean_mae": 0.1,
-      "emos_mean_mae": 0.189437,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "shenzhen": {
-      "samples": 1,
-      "legacy_mean_crps": 1.198351,
-      "emos_mean_crps": 1.490963,
-      "legacy_mean_mae": 1.3,
-      "emos_mean_mae": 1.628189,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "singapore": {
-      "samples": 2,
-      "legacy_mean_crps": 0.281993,
-      "emos_mean_crps": 0.370374,
-      "legacy_mean_mae": 0.15,
-      "emos_mean_mae": 0.118005,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "taipei": {
-      "samples": 5,
-      "legacy_mean_crps": 0.950739,
-      "emos_mean_crps": 1.042332,
-      "legacy_mean_mae": 0.94,
-      "emos_mean_mae": 0.951241,
-      "legacy_bucket_hit_rate": 0.6,
-      "emos_bucket_hit_rate": 0.6
-    },
-    "tel aviv": {
-      "samples": 2,
-      "legacy_mean_crps": 0.446758,
-      "emos_mean_crps": 0.578691,
-      "legacy_mean_mae": 0.3,
-      "emos_mean_mae": 0.116966,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "tokyo": {
-      "samples": 5,
-      "legacy_mean_crps": 0.879366,
-      "emos_mean_crps": 0.876608,
-      "legacy_mean_mae": 1.022,
-      "emos_mean_mae": 1.008317,
-      "legacy_bucket_hit_rate": 0.2,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "toronto": {
-      "samples": 2,
-      "legacy_mean_crps": 5.497916,
-      "emos_mean_crps": 5.268783,
-      "legacy_mean_mae": 6.33,
-      "emos_mean_mae": 6.388522,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "warsaw": {
-      "samples": 3,
-      "legacy_mean_crps": 1.618875,
-      "emos_mean_crps": 1.524219,
-      "legacy_mean_mae": 2.056667,
-      "emos_mean_mae": 2.006524,
-      "legacy_bucket_hit_rate": 0.333333,
-      "emos_bucket_hit_rate": 0.333333
-    },
-    "wellington": {
-      "samples": 2,
-      "legacy_mean_crps": 0.364919,
-      "emos_mean_crps": 0.484124,
-      "legacy_mean_mae": 0.15,
-      "emos_mean_mae": 0.123335,
-      "legacy_bucket_hit_rate": 1.0,
-      "emos_bucket_hit_rate": 1.0
-    },
-    "wuhan": {
-      "samples": 1,
-      "legacy_mean_crps": 0.476225,
-      "emos_mean_crps": 0.578405,
-      "legacy_mean_mae": 0.8,
-      "emos_mean_mae": 0.962852,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    }
-  }
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121159/decision_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121159/decision_report.json
deleted file mode 100644
index d14bccb7..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121159/decision_report.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  "ok": false,
-  "version": "emos-auto-20260421121159",
-  "stage": "fit",
-  "fit": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/fit_probability_calibration.py",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121159\\default.json",
-      "--version",
-      "emos-auto-20260421121159",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 1,
-    "stdout": "",
-    "stderr": ""
-  }
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/decision_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/decision_report.json
deleted file mode 100644
index 0b42484c..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/decision_report.json
+++ /dev/null
@@ -1,62 +0,0 @@
-{
-  "ok": true,
-  "version": "emos-auto-20260421121920",
-  "generated_at": "2026-04-21T12:19:41.596944+00:00",
-  "candidate_dir": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920",
-  "candidate_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920\\default.json",
-  "evaluation_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920\\evaluation_report.json",
-  "target_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.json",
-  "promote_requested": false,
-  "promoted": false,
-  "backup_path": null,
-  "decision": {
-    "decision": "promote",
-    "ready_for_promotion": true,
-    "blocking_reasons": [],
-    "thresholds": {
-      "min_samples": 50,
-      "max_delta_crps": 0.0,
-      "max_delta_mae": 0.05,
-      "min_delta_bucket_hit_rate": -0.05
-    },
-    "metrics": {
-      "sample_count": 978,
-      "delta_crps": -0.05721,
-      "delta_mae": -0.034568,
-      "delta_bucket_hit_rate": -0.00409
-    }
-  },
-  "fit": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/fit_probability_calibration.py",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920\\default.json",
-      "--version",
-      "emos-auto-20260421121920",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "evaluate": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/evaluate_probability_calibration.py",
-      "--calibration-file",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920\\default.json",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920\\evaluation_report.json",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "tests": null
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/default.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/default.json
deleted file mode 100644
index 0e881615..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/default.json
+++ /dev/null
@@ -1,361 +0,0 @@
-{
-  "version": "emos-auto-20260421121920",
-  "trained_at": "2026-04-21T12:19:38.887631+00:00",
-  "global": {
-    "mu": {
-      "intercept": 0.34330438,
-      "raw_mu_coef": 0.48749629,
-      "deb_coef": 0.45733479,
-      "ens_median_coef": 0.05955297,
-      "max_so_far_gap_coef": -0.104935
-    },
-    "sigma": {
-      "intercept": -0.62765582,
-      "raw_sigma_coef": 0.38492261,
-      "spread_coef": 0.29095921,
-      "peak_flag_coef": 0.33966327,
-      "max_so_far_gap_coef": 0.08357376
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-  },
-  "sigma_constraints": {
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-    "max_ratio": 1.35,
-    "absolute_min": 0.25,
-    "absolute_max": 3.0
-  },
-  "selection_guardrails": {
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-    "max_bucket_hit_drop": 0.01,
-    "max_bucket_brier_increase": 0.05
-  },
-  "blending": {
-    "alpha_mu": 0.25,
-    "alpha_sigma": 1.0
-  },
-  "cities": {
-    "istanbul": {
-      "samples": 20,
-      "mu_bias": -0.438949,
-      "sigma_scale": 0.553793,
-      "confidence": 1.0
-    },
-    "buenos aires": {
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-      "mu_bias": -1.044971,
-      "sigma_scale": 1.389753,
-      "confidence": 1.0
-    },
-    "ankara": {
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-      "mu_bias": 0.067406,
-      "sigma_scale": 1.270298,
-      "confidence": 1.0
-    },
-    "london": {
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-      "mu_bias": -0.010833,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "paris": {
-      "samples": 22,
-      "mu_bias": -0.21677,
-      "sigma_scale": 1.095669,
-      "confidence": 1.0
-    },
-    "new york": {
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-      "mu_bias": 1.072189,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "lagos": {
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-      "mu_bias": -0.092732,
-      "sigma_scale": 1.558646,
-      "confidence": 1.0
-    },
-    "madrid": {
-      "samples": 22,
-      "mu_bias": -0.627862,
-      "sigma_scale": 1.761239,
-      "confidence": 1.0
-    },
-    "toronto": {
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-      "mu_bias": -0.424101,
-      "sigma_scale": 1.326675,
-      "confidence": 1.0
-    },
-    "wellington": {
-      "samples": 22,
-      "mu_bias": -0.347796,
-      "sigma_scale": 0.893459,
-      "confidence": 1.0
-    },
-    "los angeles": {
-      "samples": 20,
-      "mu_bias": -0.659983,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "san francisco": {
-      "samples": 20,
-      "mu_bias": 0.941818,
-      "sigma_scale": 1.979403,
-      "confidence": 1.0
-    },
-    "aurora": {
-      "samples": 20,
-      "mu_bias": 2.040009,
-      "sigma_scale": 0.982492,
-      "confidence": 1.0
-    },
-    "austin": {
-      "samples": 20,
-      "mu_bias": 0.990023,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "houston": {
-      "samples": 20,
-      "mu_bias": 0.188787,
-      "sigma_scale": 1.819594,
-      "confidence": 1.0
-    },
-    "chicago": {
-      "samples": 21,
-      "mu_bias": 2.285098,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "dallas": {
-      "samples": 21,
-      "mu_bias": 0.258095,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "atlanta": {
-      "samples": 22,
-      "mu_bias": -2.093105,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "seattle": {
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-      "mu_bias": -0.982188,
-      "sigma_scale": 1.695172,
-      "confidence": 1.0
-    },
-    "sao paulo": {
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-      "confidence": 1.0
-    },
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-      "mu_bias": 0.096559,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "milan": {
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-      "sigma_scale": 1.626331,
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-    },
-    "warsaw": {
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-      "mu_bias": -0.50853,
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-      "confidence": 1.0
-    },
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-      "confidence": 1.0
-    },
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-      "mu_bias": 0.129889,
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-    },
-    "panama city": {
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-    },
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-    },
-    "miami": {
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-      "mu_bias": -2.736316,
-      "sigma_scale": 2.0,
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-    },
-    "manila": {
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-      "confidence": 0.625
-    },
-    "singapore": {
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-      "confidence": 1.0
-    },
-    "tokyo": {
-      "samples": 22,
-      "mu_bias": -0.332129,
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-      "confidence": 1.0
-    },
-    "seoul": {
-      "samples": 22,
-      "mu_bias": 1.6533,
-      "sigma_scale": 0.82648,
-      "confidence": 1.0
-    },
-    "busan": {
-      "samples": 16,
-      "mu_bias": 0.343239,
-      "sigma_scale": 1.886868,
-      "confidence": 1.0
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-    "mexico city": {
-      "samples": 20,
-      "mu_bias": 0.087122,
-      "sigma_scale": 1.108884,
-      "confidence": 1.0
-    },
-    "shanghai": {
-      "samples": 23,
-      "mu_bias": 0.348022,
-      "sigma_scale": 0.810527,
-      "confidence": 1.0
-    },
-    "beijing": {
-      "samples": 20,
-      "mu_bias": -0.288176,
-      "sigma_scale": 0.952972,
-      "confidence": 1.0
-    },
-    "shenzhen": {
-      "samples": 21,
-      "mu_bias": -0.006114,
-      "sigma_scale": 0.728494,
-      "confidence": 1.0
-    },
-    "wuhan": {
-      "samples": 20,
-      "mu_bias": -0.771154,
-      "sigma_scale": 1.30329,
-      "confidence": 1.0
-    },
-    "chengdu": {
-      "samples": 20,
-      "mu_bias": 0.445906,
-      "sigma_scale": 0.796989,
-      "confidence": 1.0
-    },
-    "chongqing": {
-      "samples": 20,
-      "mu_bias": -0.021301,
-      "sigma_scale": 1.106566,
-      "confidence": 1.0
-    },
-    "hong kong": {
-      "samples": 24,
-      "mu_bias": 0.37527,
-      "sigma_scale": 0.517756,
-      "confidence": 1.0
-    },
-    "taipei": {
-      "samples": 23,
-      "mu_bias": 0.600671,
-      "sigma_scale": 0.5,
-      "confidence": 1.0
-    },
-    "guangzhou": {
-      "samples": 6,
-      "mu_bias": 0.7082,
-      "sigma_scale": 1.975103,
-      "confidence": 0.75
-    },
-    "lau fau shan": {
-      "samples": 19,
-      "mu_bias": 0.41371,
-      "sigma_scale": 0.656578,
-      "confidence": 1.0
-    },
-    "kuala lumpur": {
-      "samples": 16,
-      "mu_bias": 0.499197,
-      "sigma_scale": 1.361171,
-      "confidence": 1.0
-    },
-    "jakarta": {
-      "samples": 16,
-      "mu_bias": 0.293537,
-      "sigma_scale": 0.751498,
-      "confidence": 1.0
-    },
-    "lucknow": {
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-      "mu_bias": -1.593437,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "karachi": {
-      "samples": 5,
-      "mu_bias": -0.035595,
-      "sigma_scale": 0.588612,
-      "confidence": 0.625
-    },
-    "jeddah": {
-      "samples": 10,
-      "mu_bias": 0.516879,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "moscow": {
-      "samples": 20,
-      "mu_bias": -0.609602,
-      "sigma_scale": 0.783723,
-      "confidence": 1.0
-    },
-    "tel aviv": {
-      "samples": 22,
-      "mu_bias": 0.436837,
-      "sigma_scale": 1.46524,
-      "confidence": 1.0
-    }
-  },
-  "metrics": {
-    "sample_count": 978,
-    "mean_crps": 1.330733,
-    "legacy_mean_crps": 1.376936,
-    "legacy_mean_mae": 1.589438,
-    "legacy_bucket_hit_rate": 0.43865,
-    "legacy_bucket_brier": 0.824571,
-    "selected_mean_crps": 1.311763,
-    "selected_mean_mae": 1.553658,
-    "selected_bucket_hit_rate": 0.432515,
-    "selected_bucket_brier": 0.789817,
-    "selected_score": 2.910718,
-    "legacy_score": 2.996333,
-    "filled_actual_from_history": 0,
-    "settlement_history_city_count": 30,
-    "legacy_archive_samples": 54
-  },
-  "source": "artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421121920\\default.json"
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/evaluation_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/evaluation_report.json
deleted file mode 100644
index 8048c6be..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421121920/evaluation_report.json
+++ /dev/null
@@ -1,482 +0,0 @@
-{
-  "summary": {
-    "sample_count": 978,
-    "filled_actual_from_history": 0,
-    "legacy": {
-      "mean_crps": 1.376936,
-      "mean_mae": 1.589438,
-      "bucket_hit_rate": 0.43865
-    },
-    "emos": {
-      "mean_crps": 1.319727,
-      "mean_mae": 1.554869,
-      "bucket_hit_rate": 0.43456
-    },
-    "delta": {
-      "crps": -0.05721,
-      "mae": -0.034568,
-      "bucket_hit_rate": -0.00409
-    }
-  },
-  "by_city": {
-    "amsterdam": {
-      "samples": 17,
-      "legacy_mean_crps": 0.868937,
-      "emos_mean_crps": 0.847633,
-      "legacy_mean_mae": 0.983529,
-      "emos_mean_mae": 0.979456,
-      "legacy_bucket_hit_rate": 0.529412,
-      "emos_bucket_hit_rate": 0.470588
-    },
-    "ankara": {
-      "samples": 23,
-      "legacy_mean_crps": 0.610138,
-      "emos_mean_crps": 0.569029,
-      "legacy_mean_mae": 0.726087,
-      "emos_mean_mae": 0.731312,
-      "legacy_bucket_hit_rate": 0.434783,
-      "emos_bucket_hit_rate": 0.391304
-    },
-    "atlanta": {
-      "samples": 22,
-      "legacy_mean_crps": 4.304444,
-      "emos_mean_crps": 4.435438,
-      "legacy_mean_mae": 4.79,
-      "emos_mean_mae": 4.992948,
-      "legacy_bucket_hit_rate": 0.181818,
-      "emos_bucket_hit_rate": 0.090909
-    },
-    "aurora": {
-      "samples": 20,
-      "legacy_mean_crps": 3.989577,
-      "emos_mean_crps": 3.688746,
-      "legacy_mean_mae": 4.5115,
-      "emos_mean_mae": 4.454993,
-      "legacy_bucket_hit_rate": 0.1,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "austin": {
-      "samples": 20,
-      "legacy_mean_crps": 2.261424,
-      "emos_mean_crps": 2.109386,
-      "legacy_mean_mae": 2.422,
-      "emos_mean_mae": 2.377675,
-      "legacy_bucket_hit_rate": 0.45,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "beijing": {
-      "samples": 20,
-      "legacy_mean_crps": 1.116518,
-      "emos_mean_crps": 1.123144,
-      "legacy_mean_mae": 1.4955,
-      "emos_mean_mae": 1.468371,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "buenos aires": {
-      "samples": 22,
-      "legacy_mean_crps": 1.632274,
-      "emos_mean_crps": 1.657172,
-      "legacy_mean_mae": 1.885,
-      "emos_mean_mae": 1.875542,
-      "legacy_bucket_hit_rate": 0.454545,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "busan": {
-      "samples": 16,
-      "legacy_mean_crps": 1.066146,
-      "emos_mean_crps": 0.99263,
-      "legacy_mean_mae": 1.304375,
-      "emos_mean_mae": 1.259453,
-      "legacy_bucket_hit_rate": 0.375,
-      "emos_bucket_hit_rate": 0.375
-    },
-    "cape town": {
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-      "legacy_mean_crps": 0.7369,
-      "emos_mean_crps": 0.646728,
-      "legacy_mean_mae": 0.882,
-      "emos_mean_mae": 0.809407,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "chengdu": {
-      "samples": 20,
-      "legacy_mean_crps": 1.009046,
-      "emos_mean_crps": 0.964076,
-      "legacy_mean_mae": 1.1835,
-      "emos_mean_mae": 1.155294,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "chicago": {
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-      "legacy_mean_crps": 3.052956,
-      "emos_mean_crps": 2.842851,
-      "legacy_mean_mae": 3.398095,
-      "emos_mean_mae": 3.312975,
-      "legacy_bucket_hit_rate": 0.285714,
-      "emos_bucket_hit_rate": 0.095238
-    },
-    "chongqing": {
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-      "legacy_mean_crps": 1.239078,
-      "emos_mean_crps": 1.231804,
-      "legacy_mean_mae": 1.4955,
-      "emos_mean_mae": 1.501486,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "dallas": {
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-      "emos_mean_crps": 1.700865,
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-      "legacy_bucket_hit_rate": 0.285714,
-      "emos_bucket_hit_rate": 0.238095
-    },
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-      "emos_mean_crps": 1.565936,
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-      "legacy_bucket_hit_rate": 0.166667,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "helsinki": {
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-      "legacy_mean_crps": 0.626777,
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-      "legacy_mean_mae": 0.785294,
-      "emos_mean_mae": 0.640606,
-      "legacy_bucket_hit_rate": 0.470588,
-      "emos_bucket_hit_rate": 0.529412
-    },
-    "hong kong": {
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-      "legacy_mean_mae": 0.552917,
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-      "emos_bucket_hit_rate": 0.75
-    },
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-      "legacy_bucket_hit_rate": 0.25,
-      "emos_bucket_hit_rate": 0.2
-    },
-    "istanbul": {
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-      "emos_mean_mae": 2.192556,
-      "legacy_bucket_hit_rate": 0.2,
-      "emos_bucket_hit_rate": 0.1
-    },
-    "karachi": {
-      "samples": 5,
-      "legacy_mean_crps": 0.361328,
-      "emos_mean_crps": 0.326866,
-      "legacy_mean_mae": 0.398,
-      "emos_mean_mae": 0.336276,
-      "legacy_bucket_hit_rate": 0.8,
-      "emos_bucket_hit_rate": 0.8
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-    "kuala lumpur": {
-      "samples": 16,
-      "legacy_mean_crps": 0.927888,
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-      "legacy_bucket_hit_rate": 0.375,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "lagos": {
-      "samples": 10,
-      "legacy_mean_crps": 1.174893,
-      "emos_mean_crps": 1.204827,
-      "legacy_mean_mae": 1.592,
-      "emos_mean_mae": 1.586221,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "lau fau shan": {
-      "samples": 19,
-      "legacy_mean_crps": 0.713018,
-      "emos_mean_crps": 0.63244,
-      "legacy_mean_mae": 0.706316,
-      "emos_mean_mae": 0.641667,
-      "legacy_bucket_hit_rate": 0.578947,
-      "emos_bucket_hit_rate": 0.578947
-    },
-    "london": {
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-      "legacy_mean_mae": 1.429091,
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-      "legacy_bucket_hit_rate": 0.409091,
-      "emos_bucket_hit_rate": 0.409091
-    },
-    "los angeles": {
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-      "legacy_mean_mae": 2.4145,
-      "emos_mean_mae": 2.366065,
-      "legacy_bucket_hit_rate": 0.3,
-      "emos_bucket_hit_rate": 0.3
-    },
-    "lucknow": {
-      "samples": 22,
-      "legacy_mean_crps": 1.134917,
-      "emos_mean_crps": 0.890494,
-      "legacy_mean_mae": 1.532727,
-      "emos_mean_mae": 1.201547,
-      "legacy_bucket_hit_rate": 0.136364,
-      "emos_bucket_hit_rate": 0.272727
-    },
-    "madrid": {
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-      "legacy_mean_crps": 1.196523,
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-      "legacy_mean_mae": 1.380909,
-      "emos_mean_mae": 1.383717,
-      "legacy_bucket_hit_rate": 0.545455,
-      "emos_bucket_hit_rate": 0.636364
-    },
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-      "legacy_mean_mae": 2.408,
-      "emos_mean_mae": 1.914957,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "mexico city": {
-      "samples": 20,
-      "legacy_mean_crps": 0.560208,
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-      "legacy_mean_mae": 0.713,
-      "emos_mean_mae": 0.653865,
-      "legacy_bucket_hit_rate": 0.55,
-      "emos_bucket_hit_rate": 0.5
-    },
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-      "emos_bucket_hit_rate": 0.227273
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-      "emos_bucket_hit_rate": 0.434783
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-    },
-    "munich": {
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-      "emos_bucket_hit_rate": 0.25
-    },
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-      "emos_bucket_hit_rate": 0.380952
-    },
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-      "legacy_bucket_hit_rate": 0.409091,
-      "emos_bucket_hit_rate": 0.454545
-    },
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-      "legacy_bucket_hit_rate": 0.565217,
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-    },
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-      "emos_bucket_hit_rate": 0.666667
-    },
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-      "legacy_bucket_hit_rate": 0.409091,
-      "emos_bucket_hit_rate": 0.454545
-    },
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-      "legacy_bucket_hit_rate": 0.478261,
-      "emos_bucket_hit_rate": 0.391304
-    },
-    "tel aviv": {
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-      "legacy_mean_crps": 0.770763,
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-      "legacy_bucket_hit_rate": 0.454545,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "tokyo": {
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-      "legacy_mean_crps": 0.651385,
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-      "legacy_mean_mae": 0.798182,
-      "emos_mean_mae": 0.787542,
-      "legacy_bucket_hit_rate": 0.545455,
-      "emos_bucket_hit_rate": 0.590909
-    },
-    "toronto": {
-      "samples": 22,
-      "legacy_mean_crps": 2.733044,
-      "emos_mean_crps": 2.714624,
-      "legacy_mean_mae": 2.981818,
-      "emos_mean_mae": 2.969098,
-      "legacy_bucket_hit_rate": 0.318182,
-      "emos_bucket_hit_rate": 0.409091
-    },
-    "warsaw": {
-      "samples": 23,
-      "legacy_mean_crps": 0.668776,
-      "emos_mean_crps": 0.665164,
-      "legacy_mean_mae": 0.796087,
-      "emos_mean_mae": 0.796958,
-      "legacy_bucket_hit_rate": 0.652174,
-      "emos_bucket_hit_rate": 0.608696
-    },
-    "wellington": {
-      "samples": 22,
-      "legacy_mean_crps": 0.731346,
-      "emos_mean_crps": 0.726977,
-      "legacy_mean_mae": 0.895,
-      "emos_mean_mae": 0.892558,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "wuhan": {
-      "samples": 20,
-      "legacy_mean_crps": 0.925443,
-      "emos_mean_crps": 0.897806,
-      "legacy_mean_mae": 1.0375,
-      "emos_mean_mae": 1.003133,
-      "legacy_bucket_hit_rate": 0.65,
-      "emos_bucket_hit_rate": 0.65
-    }
-  }
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/decision_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/decision_report.json
deleted file mode 100644
index a90686bc..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/decision_report.json
+++ /dev/null
@@ -1,62 +0,0 @@
-{
-  "ok": true,
-  "version": "emos-auto-20260421122743",
-  "generated_at": "2026-04-21T12:28:08.021388+00:00",
-  "candidate_dir": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743",
-  "candidate_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json",
-  "evaluation_path": "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\evaluation_report.json",
-  "target_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.json",
-  "promote_requested": true,
-  "promoted": true,
-  "backup_path": "E:\\web\\PolyWeather\\artifacts\\probability_calibration\\default.backup-20260421122808.json",
-  "decision": {
-    "decision": "promote",
-    "ready_for_promotion": true,
-    "blocking_reasons": [],
-    "thresholds": {
-      "min_samples": 50,
-      "max_delta_crps": 0.0,
-      "max_delta_mae": 0.05,
-      "min_delta_bucket_hit_rate": -0.05
-    },
-    "metrics": {
-      "sample_count": 978,
-      "delta_crps": -0.05721,
-      "delta_mae": -0.034568,
-      "delta_bucket_hit_rate": -0.00409
-    }
-  },
-  "fit": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/fit_probability_calibration.py",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json",
-      "--version",
-      "emos-auto-20260421122743",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "evaluate": {
-    "command": [
-      "C:\\Users\\Yang\\AppData\\Local\\Programs\\Python\\Python38\\python.exe",
-      "scripts/evaluate_probability_calibration.py",
-      "--calibration-file",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json",
-      "--output",
-      "E:\\web\\PolyWeather\\artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\evaluation_report.json",
-      "--verbose",
-      "--snapshot-limit",
-      "50000"
-    ],
-    "returncode": 0,
-    "stdout": "",
-    "stderr": ""
-  },
-  "tests": null
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/default.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/default.json
deleted file mode 100644
index ad104d58..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/default.json
+++ /dev/null
@@ -1,361 +0,0 @@
-{
-  "version": "emos-auto-20260421122743",
-  "trained_at": "2026-04-21T12:28:05.031165+00:00",
-  "global": {
-    "mu": {
-      "intercept": 0.34330438,
-      "raw_mu_coef": 0.48749629,
-      "deb_coef": 0.45733479,
-      "ens_median_coef": 0.05955297,
-      "max_so_far_gap_coef": -0.104935
-    },
-    "sigma": {
-      "intercept": -0.62765582,
-      "raw_sigma_coef": 0.38492261,
-      "spread_coef": 0.29095921,
-      "peak_flag_coef": 0.33966327,
-      "max_so_far_gap_coef": 0.08357376
-    }
-  },
-  "sigma_constraints": {
-    "min_ratio": 0.85,
-    "max_ratio": 1.35,
-    "absolute_min": 0.25,
-    "absolute_max": 3.0
-  },
-  "selection_guardrails": {
-    "max_mae_increase": 0.02,
-    "max_bucket_hit_drop": 0.01,
-    "max_bucket_brier_increase": 0.05
-  },
-  "blending": {
-    "alpha_mu": 0.25,
-    "alpha_sigma": 1.0
-  },
-  "cities": {
-    "istanbul": {
-      "samples": 20,
-      "mu_bias": -0.438949,
-      "sigma_scale": 0.553793,
-      "confidence": 1.0
-    },
-    "buenos aires": {
-      "samples": 22,
-      "mu_bias": -1.044971,
-      "sigma_scale": 1.389753,
-      "confidence": 1.0
-    },
-    "ankara": {
-      "samples": 23,
-      "mu_bias": 0.067406,
-      "sigma_scale": 1.270298,
-      "confidence": 1.0
-    },
-    "london": {
-      "samples": 22,
-      "mu_bias": -0.010833,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "paris": {
-      "samples": 22,
-      "mu_bias": -0.21677,
-      "sigma_scale": 1.095669,
-      "confidence": 1.0
-    },
-    "new york": {
-      "samples": 21,
-      "mu_bias": 1.072189,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "lagos": {
-      "samples": 10,
-      "mu_bias": -0.092732,
-      "sigma_scale": 1.558646,
-      "confidence": 1.0
-    },
-    "madrid": {
-      "samples": 22,
-      "mu_bias": -0.627862,
-      "sigma_scale": 1.761239,
-      "confidence": 1.0
-    },
-    "toronto": {
-      "samples": 22,
-      "mu_bias": -0.424101,
-      "sigma_scale": 1.326675,
-      "confidence": 1.0
-    },
-    "wellington": {
-      "samples": 22,
-      "mu_bias": -0.347796,
-      "sigma_scale": 0.893459,
-      "confidence": 1.0
-    },
-    "los angeles": {
-      "samples": 20,
-      "mu_bias": -0.659983,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "san francisco": {
-      "samples": 20,
-      "mu_bias": 0.941818,
-      "sigma_scale": 1.979403,
-      "confidence": 1.0
-    },
-    "aurora": {
-      "samples": 20,
-      "mu_bias": 2.040009,
-      "sigma_scale": 0.982492,
-      "confidence": 1.0
-    },
-    "austin": {
-      "samples": 20,
-      "mu_bias": 0.990023,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "houston": {
-      "samples": 20,
-      "mu_bias": 0.188787,
-      "sigma_scale": 1.819594,
-      "confidence": 1.0
-    },
-    "chicago": {
-      "samples": 21,
-      "mu_bias": 2.285098,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "dallas": {
-      "samples": 21,
-      "mu_bias": 0.258095,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "atlanta": {
-      "samples": 22,
-      "mu_bias": -2.093105,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "seattle": {
-      "samples": 21,
-      "mu_bias": -0.982188,
-      "sigma_scale": 1.695172,
-      "confidence": 1.0
-    },
-    "sao paulo": {
-      "samples": 22,
-      "mu_bias": -0.786242,
-      "sigma_scale": 1.427037,
-      "confidence": 1.0
-    },
-    "munich": {
-      "samples": 22,
-      "mu_bias": 0.096559,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "milan": {
-      "samples": 23,
-      "mu_bias": -0.045038,
-      "sigma_scale": 1.626331,
-      "confidence": 1.0
-    },
-    "warsaw": {
-      "samples": 23,
-      "mu_bias": -0.50853,
-      "sigma_scale": 1.239146,
-      "confidence": 1.0
-    },
-    "helsinki": {
-      "samples": 17,
-      "mu_bias": 0.442247,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "amsterdam": {
-      "samples": 17,
-      "mu_bias": 0.129889,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "panama city": {
-      "samples": 17,
-      "mu_bias": -0.040792,
-      "sigma_scale": 1.393259,
-      "confidence": 1.0
-    },
-    "cape town": {
-      "samples": 10,
-      "mu_bias": 0.507293,
-      "sigma_scale": 1.420004,
-      "confidence": 1.0
-    },
-    "miami": {
-      "samples": 22,
-      "mu_bias": -2.736316,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "manila": {
-      "samples": 5,
-      "mu_bias": 1.772229,
-      "sigma_scale": 2.0,
-      "confidence": 0.625
-    },
-    "singapore": {
-      "samples": 22,
-      "mu_bias": 0.289639,
-      "sigma_scale": 1.124006,
-      "confidence": 1.0
-    },
-    "tokyo": {
-      "samples": 22,
-      "mu_bias": -0.332129,
-      "sigma_scale": 0.729483,
-      "confidence": 1.0
-    },
-    "seoul": {
-      "samples": 22,
-      "mu_bias": 1.6533,
-      "sigma_scale": 0.82648,
-      "confidence": 1.0
-    },
-    "busan": {
-      "samples": 16,
-      "mu_bias": 0.343239,
-      "sigma_scale": 1.886868,
-      "confidence": 1.0
-    },
-    "mexico city": {
-      "samples": 20,
-      "mu_bias": 0.087122,
-      "sigma_scale": 1.108884,
-      "confidence": 1.0
-    },
-    "shanghai": {
-      "samples": 23,
-      "mu_bias": 0.348022,
-      "sigma_scale": 0.810527,
-      "confidence": 1.0
-    },
-    "beijing": {
-      "samples": 20,
-      "mu_bias": -0.288176,
-      "sigma_scale": 0.952972,
-      "confidence": 1.0
-    },
-    "shenzhen": {
-      "samples": 21,
-      "mu_bias": -0.006114,
-      "sigma_scale": 0.728494,
-      "confidence": 1.0
-    },
-    "wuhan": {
-      "samples": 20,
-      "mu_bias": -0.771154,
-      "sigma_scale": 1.30329,
-      "confidence": 1.0
-    },
-    "chengdu": {
-      "samples": 20,
-      "mu_bias": 0.445906,
-      "sigma_scale": 0.796989,
-      "confidence": 1.0
-    },
-    "chongqing": {
-      "samples": 20,
-      "mu_bias": -0.021301,
-      "sigma_scale": 1.106566,
-      "confidence": 1.0
-    },
-    "hong kong": {
-      "samples": 24,
-      "mu_bias": 0.37527,
-      "sigma_scale": 0.517756,
-      "confidence": 1.0
-    },
-    "taipei": {
-      "samples": 23,
-      "mu_bias": 0.600671,
-      "sigma_scale": 0.5,
-      "confidence": 1.0
-    },
-    "guangzhou": {
-      "samples": 6,
-      "mu_bias": 0.7082,
-      "sigma_scale": 1.975103,
-      "confidence": 0.75
-    },
-    "lau fau shan": {
-      "samples": 19,
-      "mu_bias": 0.41371,
-      "sigma_scale": 0.656578,
-      "confidence": 1.0
-    },
-    "kuala lumpur": {
-      "samples": 16,
-      "mu_bias": 0.499197,
-      "sigma_scale": 1.361171,
-      "confidence": 1.0
-    },
-    "jakarta": {
-      "samples": 16,
-      "mu_bias": 0.293537,
-      "sigma_scale": 0.751498,
-      "confidence": 1.0
-    },
-    "lucknow": {
-      "samples": 22,
-      "mu_bias": -1.593437,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "karachi": {
-      "samples": 5,
-      "mu_bias": -0.035595,
-      "sigma_scale": 0.588612,
-      "confidence": 0.625
-    },
-    "jeddah": {
-      "samples": 10,
-      "mu_bias": 0.516879,
-      "sigma_scale": 2.0,
-      "confidence": 1.0
-    },
-    "moscow": {
-      "samples": 20,
-      "mu_bias": -0.609602,
-      "sigma_scale": 0.783723,
-      "confidence": 1.0
-    },
-    "tel aviv": {
-      "samples": 22,
-      "mu_bias": 0.436837,
-      "sigma_scale": 1.46524,
-      "confidence": 1.0
-    }
-  },
-  "metrics": {
-    "sample_count": 978,
-    "mean_crps": 1.330733,
-    "legacy_mean_crps": 1.376936,
-    "legacy_mean_mae": 1.589438,
-    "legacy_bucket_hit_rate": 0.43865,
-    "legacy_bucket_brier": 0.824571,
-    "selected_mean_crps": 1.311763,
-    "selected_mean_mae": 1.553658,
-    "selected_bucket_hit_rate": 0.432515,
-    "selected_bucket_brier": 0.789817,
-    "selected_score": 2.910718,
-    "legacy_score": 2.996333,
-    "filled_actual_from_history": 0,
-    "settlement_history_city_count": 30,
-    "legacy_archive_samples": 54
-  },
-  "source": "artifacts\\local_runtime\\probability_calibration\\candidates\\emos-auto-20260421122743\\default.json"
-}
\ No newline at end of file
diff --git a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/evaluation_report.json b/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/evaluation_report.json
deleted file mode 100644
index 8048c6be..00000000
--- a/artifacts/local_runtime/probability_calibration/candidates/emos-auto-20260421122743/evaluation_report.json
+++ /dev/null
@@ -1,482 +0,0 @@
-{
-  "summary": {
-    "sample_count": 978,
-    "filled_actual_from_history": 0,
-    "legacy": {
-      "mean_crps": 1.376936,
-      "mean_mae": 1.589438,
-      "bucket_hit_rate": 0.43865
-    },
-    "emos": {
-      "mean_crps": 1.319727,
-      "mean_mae": 1.554869,
-      "bucket_hit_rate": 0.43456
-    },
-    "delta": {
-      "crps": -0.05721,
-      "mae": -0.034568,
-      "bucket_hit_rate": -0.00409
-    }
-  },
-  "by_city": {
-    "amsterdam": {
-      "samples": 17,
-      "legacy_mean_crps": 0.868937,
-      "emos_mean_crps": 0.847633,
-      "legacy_mean_mae": 0.983529,
-      "emos_mean_mae": 0.979456,
-      "legacy_bucket_hit_rate": 0.529412,
-      "emos_bucket_hit_rate": 0.470588
-    },
-    "ankara": {
-      "samples": 23,
-      "legacy_mean_crps": 0.610138,
-      "emos_mean_crps": 0.569029,
-      "legacy_mean_mae": 0.726087,
-      "emos_mean_mae": 0.731312,
-      "legacy_bucket_hit_rate": 0.434783,
-      "emos_bucket_hit_rate": 0.391304
-    },
-    "atlanta": {
-      "samples": 22,
-      "legacy_mean_crps": 4.304444,
-      "emos_mean_crps": 4.435438,
-      "legacy_mean_mae": 4.79,
-      "emos_mean_mae": 4.992948,
-      "legacy_bucket_hit_rate": 0.181818,
-      "emos_bucket_hit_rate": 0.090909
-    },
-    "aurora": {
-      "samples": 20,
-      "legacy_mean_crps": 3.989577,
-      "emos_mean_crps": 3.688746,
-      "legacy_mean_mae": 4.5115,
-      "emos_mean_mae": 4.454993,
-      "legacy_bucket_hit_rate": 0.1,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "austin": {
-      "samples": 20,
-      "legacy_mean_crps": 2.261424,
-      "emos_mean_crps": 2.109386,
-      "legacy_mean_mae": 2.422,
-      "emos_mean_mae": 2.377675,
-      "legacy_bucket_hit_rate": 0.45,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "beijing": {
-      "samples": 20,
-      "legacy_mean_crps": 1.116518,
-      "emos_mean_crps": 1.123144,
-      "legacy_mean_mae": 1.4955,
-      "emos_mean_mae": 1.468371,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "buenos aires": {
-      "samples": 22,
-      "legacy_mean_crps": 1.632274,
-      "emos_mean_crps": 1.657172,
-      "legacy_mean_mae": 1.885,
-      "emos_mean_mae": 1.875542,
-      "legacy_bucket_hit_rate": 0.454545,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "busan": {
-      "samples": 16,
-      "legacy_mean_crps": 1.066146,
-      "emos_mean_crps": 0.99263,
-      "legacy_mean_mae": 1.304375,
-      "emos_mean_mae": 1.259453,
-      "legacy_bucket_hit_rate": 0.375,
-      "emos_bucket_hit_rate": 0.375
-    },
-    "cape town": {
-      "samples": 10,
-      "legacy_mean_crps": 0.7369,
-      "emos_mean_crps": 0.646728,
-      "legacy_mean_mae": 0.882,
-      "emos_mean_mae": 0.809407,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "chengdu": {
-      "samples": 20,
-      "legacy_mean_crps": 1.009046,
-      "emos_mean_crps": 0.964076,
-      "legacy_mean_mae": 1.1835,
-      "emos_mean_mae": 1.155294,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "chicago": {
-      "samples": 21,
-      "legacy_mean_crps": 3.052956,
-      "emos_mean_crps": 2.842851,
-      "legacy_mean_mae": 3.398095,
-      "emos_mean_mae": 3.312975,
-      "legacy_bucket_hit_rate": 0.285714,
-      "emos_bucket_hit_rate": 0.095238
-    },
-    "chongqing": {
-      "samples": 20,
-      "legacy_mean_crps": 1.239078,
-      "emos_mean_crps": 1.231804,
-      "legacy_mean_mae": 1.4955,
-      "emos_mean_mae": 1.501486,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.4
-    },
-    "dallas": {
-      "samples": 21,
-      "legacy_mean_crps": 1.795116,
-      "emos_mean_crps": 1.700865,
-      "legacy_mean_mae": 1.979048,
-      "emos_mean_mae": 2.017151,
-      "legacy_bucket_hit_rate": 0.285714,
-      "emos_bucket_hit_rate": 0.238095
-    },
-    "guangzhou": {
-      "samples": 6,
-      "legacy_mean_crps": 1.586654,
-      "emos_mean_crps": 1.565936,
-      "legacy_mean_mae": 1.991667,
-      "emos_mean_mae": 1.995792,
-      "legacy_bucket_hit_rate": 0.166667,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "helsinki": {
-      "samples": 17,
-      "legacy_mean_crps": 0.626777,
-      "emos_mean_crps": 0.489382,
-      "legacy_mean_mae": 0.785294,
-      "emos_mean_mae": 0.640606,
-      "legacy_bucket_hit_rate": 0.470588,
-      "emos_bucket_hit_rate": 0.529412
-    },
-    "hong kong": {
-      "samples": 24,
-      "legacy_mean_crps": 0.531004,
-      "emos_mean_crps": 0.473302,
-      "legacy_mean_mae": 0.552917,
-      "emos_mean_mae": 0.52881,
-      "legacy_bucket_hit_rate": 0.666667,
-      "emos_bucket_hit_rate": 0.75
-    },
-    "houston": {
-      "samples": 20,
-      "legacy_mean_crps": 1.488859,
-      "emos_mean_crps": 1.412564,
-      "legacy_mean_mae": 1.8085,
-      "emos_mean_mae": 1.80359,
-      "legacy_bucket_hit_rate": 0.25,
-      "emos_bucket_hit_rate": 0.2
-    },
-    "istanbul": {
-      "samples": 20,
-      "legacy_mean_crps": 0.586067,
-      "emos_mean_crps": 0.546494,
-      "legacy_mean_mae": 0.6225,
-      "emos_mean_mae": 0.557255,
-      "legacy_bucket_hit_rate": 0.7,
-      "emos_bucket_hit_rate": 0.7
-    },
-    "jakarta": {
-      "samples": 16,
-      "legacy_mean_crps": 0.620583,
-      "emos_mean_crps": 0.553084,
-      "legacy_mean_mae": 0.875625,
-      "emos_mean_mae": 0.793719,
-      "legacy_bucket_hit_rate": 0.4375,
-      "emos_bucket_hit_rate": 0.4375
-    },
-    "jeddah": {
-      "samples": 10,
-      "legacy_mean_crps": 1.822658,
-      "emos_mean_crps": 1.674198,
-      "legacy_mean_mae": 2.277,
-      "emos_mean_mae": 2.192556,
-      "legacy_bucket_hit_rate": 0.2,
-      "emos_bucket_hit_rate": 0.1
-    },
-    "karachi": {
-      "samples": 5,
-      "legacy_mean_crps": 0.361328,
-      "emos_mean_crps": 0.326866,
-      "legacy_mean_mae": 0.398,
-      "emos_mean_mae": 0.336276,
-      "legacy_bucket_hit_rate": 0.8,
-      "emos_bucket_hit_rate": 0.8
-    },
-    "kuala lumpur": {
-      "samples": 16,
-      "legacy_mean_crps": 0.927888,
-      "emos_mean_crps": 0.86633,
-      "legacy_mean_mae": 1.146875,
-      "emos_mean_mae": 1.083193,
-      "legacy_bucket_hit_rate": 0.375,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "lagos": {
-      "samples": 10,
-      "legacy_mean_crps": 1.174893,
-      "emos_mean_crps": 1.204827,
-      "legacy_mean_mae": 1.592,
-      "emos_mean_mae": 1.586221,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "lau fau shan": {
-      "samples": 19,
-      "legacy_mean_crps": 0.713018,
-      "emos_mean_crps": 0.63244,
-      "legacy_mean_mae": 0.706316,
-      "emos_mean_mae": 0.641667,
-      "legacy_bucket_hit_rate": 0.578947,
-      "emos_bucket_hit_rate": 0.578947
-    },
-    "london": {
-      "samples": 22,
-      "legacy_mean_crps": 1.298133,
-      "emos_mean_crps": 1.267504,
-      "legacy_mean_mae": 1.429091,
-      "emos_mean_mae": 1.422989,
-      "legacy_bucket_hit_rate": 0.409091,
-      "emos_bucket_hit_rate": 0.409091
-    },
-    "los angeles": {
-      "samples": 20,
-      "legacy_mean_crps": 2.051516,
-      "emos_mean_crps": 2.006381,
-      "legacy_mean_mae": 2.4145,
-      "emos_mean_mae": 2.366065,
-      "legacy_bucket_hit_rate": 0.3,
-      "emos_bucket_hit_rate": 0.3
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-    "lucknow": {
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-      "legacy_mean_crps": 1.134917,
-      "emos_mean_crps": 0.890494,
-      "legacy_mean_mae": 1.532727,
-      "emos_mean_mae": 1.201547,
-      "legacy_bucket_hit_rate": 0.136364,
-      "emos_bucket_hit_rate": 0.272727
-    },
-    "madrid": {
-      "samples": 22,
-      "legacy_mean_crps": 1.196523,
-      "emos_mean_crps": 1.197589,
-      "legacy_mean_mae": 1.380909,
-      "emos_mean_mae": 1.383717,
-      "legacy_bucket_hit_rate": 0.545455,
-      "emos_bucket_hit_rate": 0.636364
-    },
-    "manila": {
-      "samples": 5,
-      "legacy_mean_crps": 1.9342,
-      "emos_mean_crps": 1.510621,
-      "legacy_mean_mae": 2.408,
-      "emos_mean_mae": 1.914957,
-      "legacy_bucket_hit_rate": 0.0,
-      "emos_bucket_hit_rate": 0.0
-    },
-    "mexico city": {
-      "samples": 20,
-      "legacy_mean_crps": 0.560208,
-      "emos_mean_crps": 0.506071,
-      "legacy_mean_mae": 0.713,
-      "emos_mean_mae": 0.653865,
-      "legacy_bucket_hit_rate": 0.55,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "miami": {
-      "samples": 22,
-      "legacy_mean_crps": 3.359106,
-      "emos_mean_crps": 3.561458,
-      "legacy_mean_mae": 3.660455,
-      "emos_mean_mae": 3.936442,
-      "legacy_bucket_hit_rate": 0.454545,
-      "emos_bucket_hit_rate": 0.227273
-    },
-    "milan": {
-      "samples": 23,
-      "legacy_mean_crps": 1.184521,
-      "emos_mean_crps": 1.055058,
-      "legacy_mean_mae": 1.284348,
-      "emos_mean_mae": 1.220263,
-      "legacy_bucket_hit_rate": 0.304348,
-      "emos_bucket_hit_rate": 0.434783
-    },
-    "moscow": {
-      "samples": 20,
-      "legacy_mean_crps": 0.617727,
-      "emos_mean_crps": 0.578817,
-      "legacy_mean_mae": 0.6375,
-      "emos_mean_mae": 0.576256,
-      "legacy_bucket_hit_rate": 0.75,
-      "emos_bucket_hit_rate": 0.75
-    },
-    "munich": {
-      "samples": 22,
-      "legacy_mean_crps": 1.101444,
-      "emos_mean_crps": 1.049123,
-      "legacy_mean_mae": 1.298182,
-      "emos_mean_mae": 1.285139,
-      "legacy_bucket_hit_rate": 0.227273,
-      "emos_bucket_hit_rate": 0.227273
-    },
-    "new york": {
-      "samples": 21,
-      "legacy_mean_crps": 3.428596,
-      "emos_mean_crps": 3.466282,
-      "legacy_mean_mae": 3.988571,
-      "emos_mean_mae": 4.038895,
-      "legacy_bucket_hit_rate": 0.238095,
-      "emos_bucket_hit_rate": 0.238095
-    },
-    "panama city": {
-      "samples": 17,
-      "legacy_mean_crps": 0.347679,
-      "emos_mean_crps": 0.287754,
-      "legacy_mean_mae": 0.476471,
-      "emos_mean_mae": 0.391782,
-      "legacy_bucket_hit_rate": 0.588235,
-      "emos_bucket_hit_rate": 0.823529
-    },
-    "paris": {
-      "samples": 22,
-      "legacy_mean_crps": 0.718617,
-      "emos_mean_crps": 0.691394,
-      "legacy_mean_mae": 0.680455,
-      "emos_mean_mae": 0.696494,
-      "legacy_bucket_hit_rate": 0.772727,
-      "emos_bucket_hit_rate": 0.772727
-    },
-    "san francisco": {
-      "samples": 20,
-      "legacy_mean_crps": 2.623636,
-      "emos_mean_crps": 2.475182,
-      "legacy_mean_mae": 2.9075,
-      "emos_mean_mae": 2.837902,
-      "legacy_bucket_hit_rate": 0.4,
-      "emos_bucket_hit_rate": 0.25
-    },
-    "sao paulo": {
-      "samples": 22,
-      "legacy_mean_crps": 0.930626,
-      "emos_mean_crps": 0.931492,
-      "legacy_mean_mae": 1.16,
-      "emos_mean_mae": 1.123038,
-      "legacy_bucket_hit_rate": 0.590909,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "seattle": {
-      "samples": 21,
-      "legacy_mean_crps": 1.378395,
-      "emos_mean_crps": 1.333721,
-      "legacy_mean_mae": 1.601905,
-      "emos_mean_mae": 1.565253,
-      "legacy_bucket_hit_rate": 0.428571,
-      "emos_bucket_hit_rate": 0.380952
-    },
-    "seoul": {
-      "samples": 22,
-      "legacy_mean_crps": 1.449956,
-      "emos_mean_crps": 1.264612,
-      "legacy_mean_mae": 1.817727,
-      "emos_mean_mae": 1.604882,
-      "legacy_bucket_hit_rate": 0.409091,
-      "emos_bucket_hit_rate": 0.454545
-    },
-    "shanghai": {
-      "samples": 23,
-      "legacy_mean_crps": 1.237937,
-      "emos_mean_crps": 1.196583,
-      "legacy_mean_mae": 1.458261,
-      "emos_mean_mae": 1.430445,
-      "legacy_bucket_hit_rate": 0.565217,
-      "emos_bucket_hit_rate": 0.608696
-    },
-    "shenzhen": {
-      "samples": 21,
-      "legacy_mean_crps": 0.481109,
-      "emos_mean_crps": 0.444093,
-      "legacy_mean_mae": 0.608095,
-      "emos_mean_mae": 0.581253,
-      "legacy_bucket_hit_rate": 0.619048,
-      "emos_bucket_hit_rate": 0.666667
-    },
-    "singapore": {
-      "samples": 22,
-      "legacy_mean_crps": 0.852942,
-      "emos_mean_crps": 0.758454,
-      "legacy_mean_mae": 1.020909,
-      "emos_mean_mae": 0.915982,
-      "legacy_bucket_hit_rate": 0.409091,
-      "emos_bucket_hit_rate": 0.454545
-    },
-    "taipei": {
-      "samples": 23,
-      "legacy_mean_crps": 0.801052,
-      "emos_mean_crps": 0.721468,
-      "legacy_mean_mae": 0.85087,
-      "emos_mean_mae": 0.814252,
-      "legacy_bucket_hit_rate": 0.478261,
-      "emos_bucket_hit_rate": 0.391304
-    },
-    "tel aviv": {
-      "samples": 22,
-      "legacy_mean_crps": 0.770763,
-      "emos_mean_crps": 0.672956,
-      "legacy_mean_mae": 0.904091,
-      "emos_mean_mae": 0.843671,
-      "legacy_bucket_hit_rate": 0.454545,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "tokyo": {
-      "samples": 22,
-      "legacy_mean_crps": 0.651385,
-      "emos_mean_crps": 0.641684,
-      "legacy_mean_mae": 0.798182,
-      "emos_mean_mae": 0.787542,
-      "legacy_bucket_hit_rate": 0.545455,
-      "emos_bucket_hit_rate": 0.590909
-    },
-    "toronto": {
-      "samples": 22,
-      "legacy_mean_crps": 2.733044,
-      "emos_mean_crps": 2.714624,
-      "legacy_mean_mae": 2.981818,
-      "emos_mean_mae": 2.969098,
-      "legacy_bucket_hit_rate": 0.318182,
-      "emos_bucket_hit_rate": 0.409091
-    },
-    "warsaw": {
-      "samples": 23,
-      "legacy_mean_crps": 0.668776,
-      "emos_mean_crps": 0.665164,
-      "legacy_mean_mae": 0.796087,
-      "emos_mean_mae": 0.796958,
-      "legacy_bucket_hit_rate": 0.652174,
-      "emos_bucket_hit_rate": 0.608696
-    },
-    "wellington": {
-      "samples": 22,
-      "legacy_mean_crps": 0.731346,
-      "emos_mean_crps": 0.726977,
-      "legacy_mean_mae": 0.895,
-      "emos_mean_mae": 0.892558,
-      "legacy_bucket_hit_rate": 0.5,
-      "emos_bucket_hit_rate": 0.5
-    },
-    "wuhan": {
-      "samples": 20,
-      "legacy_mean_crps": 0.925443,
-      "emos_mean_crps": 0.897806,
-      "legacy_mean_mae": 1.0375,
-      "emos_mean_mae": 1.003133,
-      "legacy_bucket_hit_rate": 0.65,
-      "emos_bucket_hit_rate": 0.65
-    }
-  }
-}
\ No newline at end of file
diff --git a/artifacts/probability_calibration/default.backup-20260421122808.json b/artifacts/probability_calibration/default.backup-20260421122808.json
deleted file mode 100644
index a3796c3e..00000000
--- a/artifacts/probability_calibration/default.backup-20260421122808.json
+++ /dev/null
@@ -1,115 +0,0 @@
-{
-  "version": "emos-20260418192717",
-  "trained_at": "2026-04-18T19:27:17.348931+00:00",
-  "global": {
-    "mu": {
-      "intercept": 2.60074353,
-      "raw_mu_coef": 1.97765258,
-      "deb_coef": -1.37457626,
-      "ens_median_coef": 0.10693472,
-      "max_so_far_gap_coef": -0.58256593
-    },
-    "sigma": {
-      "intercept": 0.6373609,
-      "raw_sigma_coef": -1.41537225,
-      "spread_coef": 2.12997577,
-      "peak_flag_coef": -0.08633203,
-      "max_so_far_gap_coef": -0.00716383
-    }
-  },
-  "sigma_constraints": {
-    "min_ratio": 0.85,
-    "max_ratio": 1.35,
-    "absolute_min": 0.25,
-    "absolute_max": 3.0
-  },
-  "selection_guardrails": {
-    "max_mae_increase": 0.02,
-    "max_bucket_hit_drop": 0.01,
-    "max_bucket_brier_increase": 0.05
-  },
-  "blending": {
-    "alpha_mu": 0.05,
-    "alpha_sigma": 0.7
-  },
-  "cities": {
-    "tokyo": {
-      "samples": 5,
-      "mu_bias": 2.101101,
-      "sigma_scale": 2.0,
-      "confidence": 0.625
-    },
-    "ankara": {
-      "samples": 6,
-      "mu_bias": -0.523145,
-      "sigma_scale": 1.139849,
-      "confidence": 0.75
-    },
-    "istanbul": {
-      "samples": 3,
-      "mu_bias": -0.285183,
-      "sigma_scale": 0.550171,
-      "confidence": 0.375
-    },
-    "hong kong": {
-      "samples": 7,
-      "mu_bias": 3.234676,
-      "sigma_scale": 2.0,
-      "confidence": 0.875
-    },
-    "taipei": {
-      "samples": 5,
-      "mu_bias": 4.731246,
-      "sigma_scale": 2.0,
-      "confidence": 0.625
-    },
-    "busan": {
-      "samples": 3,
-      "mu_bias": 0.177772,
-      "sigma_scale": 2.0,
-      "confidence": 0.375
-    },
-    "seoul": {
-      "samples": 3,
-      "mu_bias": -3.070325,
-      "sigma_scale": 1.462196,
-      "confidence": 0.375
-    },
-    "milan": {
-      "samples": 3,
-      "mu_bias": -4.249866,
-      "sigma_scale": 2.0,
-      "confidence": 0.375
-    },
-    "shanghai": {
-      "samples": 3,
-      "mu_bias": 1.080039,
-      "sigma_scale": 1.638119,
-      "confidence": 0.375
-    },
-    "warsaw": {
-      "samples": 3,
-      "mu_bias": -1.68611,
-      "sigma_scale": 1.38114,
-      "confidence": 0.375
-    }
-  },
-  "metrics": {
-    "sample_count": 74,
-    "mean_crps": 3.181501,
-    "legacy_mean_crps": 3.474108,
-    "legacy_mean_mae": 3.679324,
-    "legacy_bucket_hit_rate": 0.5,
-    "legacy_bucket_brier": 0.855395,
-    "selected_mean_crps": 3.322469,
-    "selected_mean_mae": 3.618254,
-    "selected_bucket_hit_rate": 0.5,
-    "selected_bucket_brier": 0.863048,
-    "selected_score": 5.08158,
-    "legacy_score": 5.233586,
-    "filled_actual_from_history": 0,
-    "settlement_history_city_count": 30,
-    "legacy_archive_samples": 54
-  },
-  "source": "artifacts\\probability_calibration\\default.json"
-}
\ No newline at end of file