架构重构：拆分 core/ops/DBManager，统一 SQLite 锁，DEB 改进，新增注意力模型

- web/core.py 858→236行，拆出 schemas/middleware/auth/diagnostics
- ops_api.py 2876→4个 domain 模块 (users/payments/health/config)
- DBManager Supabase HTTP 调用提取到 SupabaseAdminClient
- 新增 LockedSQLiteConnection 统一多进程读写锁
- 新增 WeatherCacheManager 替代 12 个独立缓存字典
- METAR 缓存迁移至统一缓存管理器
- analysis_service 提取 _build_intraday_meteorology 到独立模块
- DEB 改进：偏差惩罚、分歧回退、自适应 lookback (MAE ↓12.6%)
- 新增 PyTorch 注意力模型 deb_attention.py (数据积累后启用)
- 新增 torch 到 requirements.lock

tests/test_country_networks.py

@@ -28,6 +28,8 @@ class _DummyMetarSource(MetarSourceMixin):
     def __init__(self):
         self._metar_cache = {}
         self._metar_cache_lock = threading.Lock()
+        from src.data_collection.weather_cache import WeatherCacheManager
+        self.cache = WeatherCacheManager()
         self.metar_timeout_sec = 0.0
         self.metar_latest_timeout_sec = 0.0
         self.timeout = 0.0

tests/test_realtime_event_store.py

@@ -2,6 +2,7 @@ import sqlite3
 from datetime import datetime, timezone
 
 from src.database.db_manager import DBManager
+from src.database.sqlite_connection import connect_sqlite
 from web.realtime_event_store import RealtimeEventStore
 from web.realtime_patch_schema import normalize_observation_patch
 
@@ -75,7 +76,7 @@ def test_event_store_cleanup_uses_short_replay_retention(tmp_path):
     old_event = store.append_event(_event("taipei", 30.0))
     fresh_event = store.append_event(_event("taipei", 31.0))
 
-    with sqlite3.connect(db_path) as conn:
+    with connect_sqlite(db_path) as conn:
         conn.execute(
             "UPDATE observation_patch_events SET created_at = ? WHERE revision = ?",
             ("2026-05-26T00:00:00+00:00", old_event["revision"]),