release: bump version to 0.38.0

backend/app/services/earth_news.py

@@ -30,6 +30,14 @@ class RegionProfile:
     accent: str
 
 
+@dataclass(frozen=True)
+class RegionAnchor:
+    region: str
+    label: str
+    latitude: float
+    longitude: float
+
+
 @dataclass(frozen=True)
 class NewsFeedSource:
     id: str
@@ -95,6 +103,39 @@ REGION_PROFILES: dict[str, RegionProfile] = {
     ),
 }
 
+REGION_ANCHORS: dict[str, RegionAnchor] = {
+    "americas": RegionAnchor(
+        region="americas",
+        label="美洲",
+        latitude=37.0902,
+        longitude=-95.7129,
+    ),
+    "europe": RegionAnchor(
+        region="europe",
+        label="欧洲",
+        latitude=50.1109,
+        longitude=8.6821,
+    ),
+    "middle-east-africa": RegionAnchor(
+        region="middle-east-africa",
+        label="中东与非洲",
+        latitude=25.2048,
+        longitude=55.2708,
+    ),
+    "asia-pacific": RegionAnchor(
+        region="asia-pacific",
+        label="亚太",
+        latitude=1.3521,
+        longitude=103.8198,
+    ),
+    "global": RegionAnchor(
+        region="global",
+        label="全球",
+        latitude=20.0,
+        longitude=0.0,
+    ),
+}
+
 
 def _google_news_feed(query: str, *, hl: str, gl: str, ceid: str) -> str:
     return (
@@ -213,6 +254,10 @@ def get_region_profile(region: str) -> RegionProfile:
     return REGION_PROFILES.get(region, REGION_PROFILES["global"])
 
 
+def get_region_anchor(region: str) -> RegionAnchor:
+    return REGION_ANCHORS.get(region, REGION_ANCHORS["global"])
+
+
 def get_sources_for_region(region: str) -> list[NewsFeedSource]:
     return sorted(
         [source for source in NEWS_FEED_SOURCES if source.region in {"global", region}],
@@ -342,6 +387,7 @@ def _serialize_sources(sources: list[NewsFeedSource]) -> list[dict[str, Any]]:
 
 def _serialize_item(item: ParsedNewsItem, *, active_region: str) -> dict[str, Any]:
     published_at = item.published_at
+    anchor = get_region_anchor(item.feed_region)
     return {
         "id": item.id,
         "title": item.title,
@@ -352,6 +398,10 @@ def _serialize_item(item: ParsedNewsItem, *, active_region: str) -> dict[str, An
         "region": item.feed_region,
         "homepage_url": item.homepage_url,
         "published_at": published_at.isoformat().replace("+00:00", "Z") if published_at else None,
+        "latitude": anchor.latitude,
+        "longitude": anchor.longitude,
+        "location_label": anchor.label,
+        "location_inferred": True,
         "is_focus_match": item.feed_region == active_region,
     }