v0.5.84: matches origin filter, mobile gate, refresh reliability.

Ship Web refresh cache/lock, mobile demand gate, matches 职业/国服 filter, and related site updates through 0.5.84.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/fetch_streamer_live.py

@@ -5,6 +5,9 @@ For every streamer row with ``live_url`` this script writes:
 - ``is_live``        — True only when the platform confirms the room is live
 - ``live_probed_at`` — UTC ISO timestamp of the successful probe
 
+Probe backend follows the ``live_url`` host (may differ from profile
+``platform``, e.g. Douyin profile + Bilibili room).
+
 Approach (verified 2026-07):
 
 - Bilibili: public API ``api.live.bilibili.com/room/v1/Room/get_info`` with the
@@ -155,6 +158,16 @@ def room_ref_from_url(live_url: str) -> str | None:
     return path.split("/")[0] or None
 
 
+def live_platform_from_url(live_url: str, fallback: str = "") -> str:
+    """Probe backend follows the live room host (may differ from profile platform)."""
+    host = urllib.parse.urlparse(live_url.strip()).netloc.lower()
+    if "bilibili.com" in host:
+        return "bilibili"
+    if "douyin.com" in host:
+        return "douyin"
+    return (fallback or "").strip().lower()
+
+
 def probe_streamers(
     payload: dict, *, ids: set[str] | None = None
 ) -> tuple[int, int, int]:
@@ -172,7 +185,8 @@ def probe_streamers(
         live_url = str(row.get("live_url") or "").strip()
         if not live_url:
             continue
-        platform = str(row.get("platform") or "").strip().lower()
+        fallback = str(row.get("platform") or "").strip().lower()
+        platform = live_platform_from_url(live_url, fallback)
         ref = room_ref_from_url(live_url)
         if not ref:
             print(f"skip {sid}: cannot parse room ref from {live_url!r}", flush=True)
@@ -244,10 +258,7 @@ def main() -> int:
     if args.dry_run:
         print(f"dry-run: would write {args.out} ({summary})", flush=True)
         return 0
-    args.out.write_text(
-        json.dumps(payload, ensure_ascii=False, indent=2) + "\n",
-        encoding="utf-8",
-    )
+    http_utils.write_json_atomic(args.out, payload)
     print(f"wrote {args.out} {summary}", flush=True)
     # Soft-fail for CI/refresh_web: always exit 0 after writing.
     return 0