Add HKO-backed Shek Kong settlement and history support

src/data_collection/city_registry.py

@@ -64,6 +64,9 @@ CITY_REGISTRY = {
         "lon": 114.1742,
         "icao": "VHHH",
         "settlement_source": "hko",
+        "settlement_station_code": "HKO",
+        "settlement_station_label": "HK Observatory",
+        "settlement_station_candidates": ["HK Observatory", "Hong Kong Observatory"],
         "tz_offset": 28800,
         "use_fahrenheit": False,
         "is_major": True,
@@ -73,6 +76,25 @@ CITY_REGISTRY = {
         "distance_km": 2.0,
         "warning": "海风与地形共同作用，午后对流触发后温度回落可能偏快。",
     },
+    "shek kong": {
+        "name": "Shek Kong",
+        "lat": 22.4366,
+        "lon": 114.0800,
+        "icao": "VHSK",
+        "settlement_source": "hko",
+        "settlement_station_code": "SEK",
+        "settlement_station_label": "Shek Kong",
+        "settlement_station_candidates": ["Shek Kong"],
+        "disable_aviationweather": True,
+        "tz_offset": 28800,
+        "use_fahrenheit": False,
+        "is_major": False,
+        "risk_level": "medium",
+        "risk_emoji": "🟡",
+        "airport_name": "石岗机场",
+        "distance_km": 0.8,
+        "warning": "HKO 结算取石岗站分钟级观测，机场报文与 HKO 站点最高温不可直接混用。",
+    },
     "taipei": {
         "name": "Taipei",
         "lat": 25.0777,
@@ -440,6 +462,7 @@ ALIASES = {
     "dal": "dallas", "mia": "miami", "atl": "atlanta", 
     "sea": "seattle", "tor": "toronto", "sel": "seoul", 
     "seo": "seoul", "hkg": "hong kong", "hk": "hong kong",
+    "vhsk": "shek kong", "shekkong": "shek kong",
     "tpe": "taipei", "tp": "taipei", "taipei": "taipei",
     "sha": "shanghai", "sh": "shanghai", "sin": "singapore",
     "sg": "singapore", "tok": "tokyo", "tyo": "tokyo",
@@ -462,6 +485,8 @@ ALIASES = {
     "多伦多": "toronto",
     "首尔": "seoul",
     "香港": "hong kong",
+    "石岗": "shek kong",
+    "石崗": "shek kong",
     "台北": "taipei",
     "臺北": "taipei",
     "上海": "shanghai",