从系统彻底移除 Lagos 城市

该城市已不再需要，从城市注册表、时区映射、缓存巡检脚本、测试
中全部清理。52 城市 → 51 城市。

Tested: pytest test_country_networks.py (19/19), ruff check

scripts/check_city_cache.py

@@ -6,7 +6,7 @@ TOK = "Bearer ZLuvwSsQvHSj2geIWfX7gjn9rJU_heOlgq0FBp7cUOgXaB2eHbE20R4PKwonP2FP"
 CITIES = [
     "london", "paris", "amsterdam", "helsinki", "istanbul", "ankara",
     "moscow", "new york", "los angeles", "chicago", "miami", "houston",
-    "lagos", "jeddah", "karachi", "tel aviv",
+    "jeddah", "karachi", "tel aviv",
 ]
 
 for city in CITIES:

src/data_collection/city_registry.py

@@ -762,25 +762,6 @@ CITY_REGISTRY = {
         "distance_km": 6.0,
         "warning": "市场现按 Wunderground Marcos A. Gelabert 机场站整度°C口径结算；热带对流常让峰值在午后被快速截断。",
     },
-    "lagos": {
-        "name": "Lagos",
-        "lat": 6.5774,
-        "lon": 3.3212,
-        "icao": "DNMM",
-        "settlement_source": "wunderground",
-        "settlement_station_code": "DNMM",
-        "settlement_station_label": "Lagos/Murtala Muhammed International Airport Station",
-        "settlement_url": "https://www.wunderground.com/history/daily/ng/lagos/DNMM",
-        "tz_offset": 3600,
-        "use_fahrenheit": False,
-        "is_major": True,
-        "fast_metar_refresh": True,
-        "risk_level": "medium",
-        "risk_emoji": "🟡",
-        "airport_name": "穆尔塔拉·穆罕默德国际机场",
-        "distance_km": 12.0,
-        "warning": "市场现按 Wunderground 拉各斯穆尔塔拉·穆罕默德国际机场站整度°C口径结算；海陆风与热带对流会让午后峰值兑现存在波动。",
-    },
     "cape town": {
         "name": "Cape Town",
         "lat": -33.9696,
@@ -844,7 +825,6 @@ ALIASES = {
     "hel": "helsinki", "efhk": "helsinki", "vantaa": "helsinki",
     "ams": "amsterdam", "eham": "amsterdam", "schiphol": "amsterdam",
     "pty": "panama city", "mpmg": "panama city", "panamacity": "panama city",
-    "los": "lagos", "dnmm": "lagos",
     "cpt": "cape town", "fact": "cape town", "capetown": "cape town", "matroosfontein": "cape town",
     "jed": "jeddah", "oejn": "jeddah",
     "tlv": "tel aviv", "telaviv": "tel aviv",
@@ -903,7 +883,6 @@ ALIASES = {
     "赫爾辛基": "helsinki",
     "阿姆斯特丹": "amsterdam",
     "巴拿马城": "panama city",
-    "拉各斯": "lagos",
     "开普敦": "cape town",
     "開普敦": "cape town",
     "吉达": "jeddah",

src/data_collection/city_time.py

@@ -34,7 +34,6 @@ CITY_TIME_ZONES = {
     "jeddah": "Asia/Riyadh",
     "karachi": "Asia/Karachi",
     "kuala lumpur": "Asia/Kuala_Lumpur",
-    "lagos": "Africa/Lagos",
     "lau fau shan": "Asia/Hong_Kong",
     "london": "Europe/London",
     "los angeles": "America/Los_Angeles",

tests/test_country_networks.py

@@ -66,7 +66,6 @@ def test_turkey_metar_uses_fast_cache_ttl():
 
     assert source._metar_cache_ttl_for_city("ankara", "LTAC") == 60
     assert source._metar_cache_ttl_for_city("istanbul", "LTFM") == 60
-    assert source._metar_cache_ttl_for_city("lagos", "DNMM") == 60
     assert source._metar_cache_ttl_for_city("karachi", "OPKC") == 600
 
 
@@ -88,12 +87,12 @@ def test_metar_marks_previous_local_day_report_stale(monkeypatch):
         def json(self):
             return [
                 {
-                    "rawOb": "METAR DNMM 200600Z 00000KT 9999 SCT015 26/25 Q1012",
+                    "rawOb": "METAR OPKC 200600Z 00000KT 9999 SCT015 26/25 Q1012",
                     "reportTime": "2026-04-20T06:00:00Z",
                     "receiptTime": "2026-04-20T06:12:07Z",
                     "temp": 26,
                     "dewp": 25,
-                    "name": "Murtala Muhammed International Airport",
+                    "name": "Jinnah International Airport",
                 }
             ]
 
@@ -107,7 +106,7 @@ def test_metar_marks_previous_local_day_report_stale(monkeypatch):
 
     monkeypatch.setattr(metar_sources, "datetime", FixedDateTime)
 
-    result = source.fetch_metar("lagos", utc_offset=3600)
+    result = source.fetch_metar("karachi", utc_offset=18000)
 
     assert result["stale_for_today"] is True
     assert result["observation_local_date"] == "2026-04-20"