feat(identity): trust site-provided IMDb/TMDB IDs in scoring (ID-3)

MatchOptions.trustedIds: a candidate fetched by a site-given ID is at least
multi_evidence even when titles differ; year/type conflicts stay candidates.
Differential group site-ids-* against MP search/result.py _match_source.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/domain/test/differential/identity/gen-site-ids-mp.py

@@ -0,0 +1,62 @@
+"""身份匹配差分(ID-3 站点外部 ID 组):用 MP 上游 search/result.py `_match_source` 生成 site-ids-mp.json。
+
+用法(MP 仓库根目录,用其 .venv;不访问网络):
+  cd /opt/moviepilot-plus/upstream/MoviePilot && PYTHONPATH=. \
+  .venv/bin/python /opt/uhd_media_tool/packages/domain/test/differential/identity/gen-site-ids-mp.py
+
+每条样本 = 站点种子(标题 / 副标题 / 站点给出的 IMDb ID)+ 目标作品(TMDB 标题 / 年份 / 类型 / IMDb ID)。
+记录 MP `_match_source` 的判定:种子 IMDb 与作品一致时返回 "imdb"(不再比标题),否则走标题匹配。
+只记录行为输出,不复制 MP 源码。
+"""
+
+import json
+import pathlib
+import subprocess
+
+from app.chain.search.result import _match_source
+from app.domain.context import MediaInfo, TorrentInfo
+from app.domain.metainfo import MetaInfo
+from app.schemas.types import MediaSource, MediaType
+
+HERE = pathlib.Path(__file__).parent
+samples = json.loads((HERE / "site-ids-samples.json").read_text(encoding="utf-8"))["samples"]
+
+
+def run(s: dict) -> dict:
+    t = s["torrent"]
+    w = s["work"]
+    torrent = TorrentInfo(
+        site=1,
+        site_name="site",
+        title=t["title"],
+        description=t.get("subtitle"),
+        media_source=MediaSource.IMDb if t.get("imdbId") else None,
+        media_id=t.get("imdbId"),
+    )
+    meta = MetaInfo(t["title"], t.get("subtitle"))
+    media = MediaInfo()
+    media.type = MediaType.MOVIE if w["type"] == "movie" else MediaType.TV
+    media.title = w["title"]
+    media.original_title = w.get("originalTitle") or w["title"]
+    media.en_title = w.get("originalTitle") or w["title"]
+    media.year = str(w["year"])
+    media.tmdb_id = w["tmdbId"]
+    media.imdb_id = w.get("imdbId")
+    media.names = []
+    try:
+        by = _match_source(torrent, meta, media, {})
+    except Exception as e:  # noqa: BLE001 - 标题匹配分支需要的上下文缺失时记为未命中
+        return {"match": None, "error": f"{type(e).__name__}: {e}"}
+    return {"match": by}
+
+
+out = {
+    "generatedFrom": {
+        "repo": "MoviePilot",
+        "commit": subprocess.check_output(["git", "rev-parse", "--short", "HEAD"], text=True).strip(),
+        "entry": "app.chain.search.result._match_source",
+    },
+    "results": {s["id"]: run(s) for s in samples},
+}
+(HERE / "site-ids-mp.json").write_text(json.dumps(out, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
+print(json.dumps(out["results"], ensure_ascii=False, indent=1))