diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d2ff4de..741dd159 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+# [3.3.1] - 2026-07-07
+
+- **修复**：搜索/订阅/收集添加的种子未关联番剧被记成孤儿，导致孤儿记录无法通过 `track_orphans` 关闭；重复订阅时正确解析已存在的规则（不覆盖用户调好的 offset/filter），重新订阅已禁用的规则时自动重新启用；收集失败不再留下幽灵订阅规则
+- **修复**（#721）：标题中的 Windows/qB 保留字符（`< > : " / \ | ? *`）会把保存路径拆成多级目录或丢字——生成保存路径时清洗（仅新订阅，不触碰既有做种库）
+- **修复**（#667/#704）：总集篇等半集（12.5）不再被取整成第 12 集覆盖原文件，重命名保留小数（`S01E12.5`），通知同步保留
+- **新增**（#904）：Server酱³ 推送支持——`sctp` 开头的 sendkey 自动走 `push.ft07.com` 端点
+- **新增**（#147）：重命名完成的种子在下载器中打 `ab:renamed` 标签，供外部脚本（filebot / hlink 等）过滤已处理任务
+- **新增**（#975 / #1042）：TMDB API Key 可自配（留空回退内置共享 key）；设置页新增"网络设置"面板（TMDB / Bangumi API 地址与 Key）
+
 # [3.3.0] - 2026-07-07
 
 3.3.0 正式版。主要变化（相对 3.2.x；逐项细节见下方 beta.1–beta.8 条目）：
diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 3237311c..0bebc430 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "auto-bangumi"
-version = "3.3.0"
+version = "3.3.1"
 description = "AutoBangumi - Automated anime download manager"
 requires-python = ">=3.13"
 dependencies = [
diff --git a/backend/src/module/api/downloader.py b/backend/src/module/api/downloader.py
index 72fbc667..6de81a96 100644
--- a/backend/src/module/api/downloader.py
+++ b/backend/src/module/api/downloader.py
@@ -1,4 +1,5 @@
 import logging
+import re
 
 from fastapi import APIRouter, Depends
 from pydantic import BaseModel
@@ -123,8 +124,9 @@ async def auto_tag_torrents():
             save_path = torrent["save_path"]
             tags = torrent.get("tags", "")
 
-            # Skip if already has ab: tag
-            if "ab:" in tags:
+            # Skip if already has an ab:<id> link tag。必须精确匹配数字 id：
+            # ab:renamed（处理完成标记）等同前缀标签不代表已关联番剧
+            if re.search(r"ab:\d+", tags):
                 continue
 
             # First try by torrent name, then fall back to save_path
diff --git a/backend/src/module/database/bangumi.py b/backend/src/module/database/bangumi.py
index 5baf7ed0..5782e2cd 100644
--- a/backend/src/module/database/bangumi.py
+++ b/backend/src/module/database/bangumi.py
@@ -246,16 +246,37 @@ class BangumiDatabase:
         """Get all title patterns for matching (title_raw + all aliases)."""
         return _all_title_patterns(bangumi)
 
-    async def _is_duplicate(self, data: Bangumi) -> bool:
-        """Check if a bangumi rule already exists based on title_raw and group_name."""
-        statement = select(Bangumi).where(
-            and_(
-                Bangumi.title_raw == data.title_raw,
-                Bangumi.group_name == data.group_name,
+    async def find_duplicate(self, data: Bangumi) -> Optional[Bangumi]:
+        """Find an existing bangumi with the same title_raw and group_name.
+
+        Legacy data may contain multiple rows for the same key; return the
+        oldest (lowest id) deterministically and warn instead of raising.
+        """
+        statement = (
+            select(Bangumi)
+            .where(
+                and_(
+                    Bangumi.title_raw == data.title_raw,
+                    Bangumi.group_name == data.group_name,
+                )
             )
+            .order_by(Bangumi.id)  # type: ignore[arg-type]
         )
         result = await self.session.execute(statement)
-        return result.scalar_one_or_none() is not None
+        rows = list(result.scalars().all())
+        if len(rows) > 1:
+            logger.warning(
+                "Multiple bangumi rows share (title_raw=%s, group_name=%s); "
+                "using the oldest (id=%s)",
+                data.title_raw,
+                data.group_name,
+                rows[0].id,
+            )
+        return rows[0] if rows else None
+
+    async def _is_duplicate(self, data: Bangumi) -> bool:
+        """Check if a bangumi rule already exists based on title_raw and group_name."""
+        return await self.find_duplicate(data) is not None
 
     async def add(self, data: Bangumi) -> bool:
         if await self._is_duplicate(data):
@@ -436,6 +457,25 @@ class BangumiDatabase:
             await self.session.commit()
             logger.debug("Update %s poster_link to %s.", title_raw, poster_link)
 
+    async def restore_one(self, _id: int) -> bool:
+        """取消软删除（重新启用规则）。行不存在或本就未删除时不写库。"""
+        bangumi = await self.session.get(Bangumi, _id)
+        if not bangumi or not bangumi.deleted:
+            return False
+        bangumi.deleted = False
+        self.session.add(bangumi)
+        await self.session.commit()
+        logger.info("Restored disabled bangumi id: %s.", _id)
+        return True
+
+    async def mark_eps_collect(self, _id: int) -> None:
+        """只把 eps_collect 置位，不触碰行内其他字段（offset/filter 等）。"""
+        bangumi = await self.session.get(Bangumi, _id)
+        if bangumi:
+            bangumi.eps_collect = True
+            self.session.add(bangumi)
+            await self.session.commit()
+
     async def delete_one(self, _id: int):
         statement = select(Bangumi).where(Bangumi.id == _id)
         result = await self.session.execute(statement)
diff --git a/backend/src/module/downloader/path.py b/backend/src/module/downloader/path.py
index c0bbd183..6cc3b46d 100644
--- a/backend/src/module/downloader/path.py
+++ b/backend/src/module/downloader/path.py
@@ -21,6 +21,21 @@ else:
 _MEDIA_SUFFIXES = frozenset({".mp4", ".mkv"})
 _SUBTITLE_SUFFIXES = frozenset({".ass", ".srt"})
 
+# Windows/qB 保留字符 + 控制字符：出现在路径片段里会被下载器拆成多级
+# 目录或直接丢字（qB 静默截断），必须在拼路径前替换掉 (#721)
+_ILLEGAL_PATH_CHARS_RE = re.compile(r'[<>:"/\\|?*\x00-\x1f]')
+
+
+def sanitize_path_fragment(name: str) -> str:
+    """把单个路径片段（文件夹名或文件名，不含分隔符）里的保留字符替换为空格。
+
+    多余空白折叠为单个空格；Windows 不允许目录/文件名以点或空格结尾，
+    一并去掉。幂等：对已合法的名字原样返回。
+    """
+    cleaned = _ILLEGAL_PATH_CHARS_RE.sub(" ", name)
+    cleaned = re.sub(r"\s+", " ", cleaned).strip()
+    return cleaned.rstrip(". ")
+
 
 def check_files(files: list[dict]):
     media_list = []
@@ -72,9 +87,13 @@ def gen_save_path(data: Bangumi | BangumiUpdate):
     specials/OVA/OAD land in "Season 0" (Jellyfin/Plex convention) instead of
     being interleaved with regular episodes.
     """
-    folder = (
+    folder = sanitize_path_fragment(
         f"{data.official_title} ({data.year})" if data.year else data.official_title
     )
+    if not folder:
+        # 标题全由保留字符组成时清洗结果为空——不能让所有这类番剧
+        # 坍缩到同一个 ``…//Season N`` 目录里
+        folder = "Unknown Bangumi"
     episode_type = getattr(data, "episode_type", "episode")
     if episode_type == "movie":
         # 电影/剧场版：Title (Year)/Title (Year).ext，不建 Season 子目录
diff --git a/backend/src/module/manager/collector.py b/backend/src/module/manager/collector.py
index 2238f4e2..5b02ff38 100644
--- a/backend/src/module/manager/collector.py
+++ b/backend/src/module/manager/collector.py
@@ -10,6 +10,33 @@ from module.searcher import SearchTorrent
 logger = logging.getLogger(__name__)
 
 
+async def _ensure_bangumi_id(db: Database, data: Bangumi) -> bool:
+    """确保 ``data.id`` 可用：新番剧插入拿 id，重复番剧解析出已存在行的 id。
+
+    ``add()`` 对精确重复（title_raw+group_name）与语义重复（并入别名）都
+    返回 False 且不回填 id——不解析已存在行的话，add_torrent 的 ab:<id>
+    标签与种子行的 bangumi_id 关联都会丢失，种子被记成孤儿。
+
+    解析到被软删除（禁用）的行时会重新启用它：显式订阅/收集一个已禁用
+    的规则只能是用户想要它回来——不启用的话种子要么变孤儿、要么挂到
+    对下游所有查询都不可见的行上。传入的 id 指向已不存在的行时清空，
+    避免种子挂到悬空外键。返回是否插入了新行（调用方据此决定失败时
+    是否回滚删除）。
+    """
+    if await db.bangumi.add(data):
+        return True
+    existing = await db.bangumi.find_duplicate(data)
+    if existing is None:
+        existing = await db.bangumi.find_semantic_duplicate(data)
+    if existing is not None:
+        if existing.deleted:
+            await db.bangumi.restore_one(existing.id)
+        data.id = existing.id
+    elif data.id is not None and await db.bangumi.search_id(data.id) is None:
+        data.id = None  # type: ignore[assignment]
+    return False
+
+
 class SeasonCollector:
     def __init__(self, client: DownloadClient):
         self.client = client
@@ -27,18 +54,32 @@ class SeasonCollector:
                     link, bangumi.filter.replace(",", "|")
                 )
         async with Database() as db:
+            # bangumi 必须先落库拿到 id：add_torrent 用它打 ab:<id> 标签，
+            # 种子行也要用它关联 bangumi_id——否则种子会被记成孤儿，
+            # track_orphans 开关对这些"已匹配"的种子完全失效。
+            # update() returns False when no existing row matches
+            # bangumi.id (i.e. this is a brand-new bangumi), in which
+            # case it needs to be inserted (or resolved to the existing
+            # duplicate row) instead.
+            inserted = False
+            if bangumi.id is None or not await db.bangumi.update(bangumi):
+                inserted = await _ensure_bangumi_id(db, bangumi)
+            else:
+                # 载荷带着已禁用行的 id 也能 update 成功：显式收集
+                # 即用户想重新启用，否则种子会挂到不可见的行上
+                await db.bangumi.restore_one(bangumi.id)
             if await self.client.add_torrent(torrents, bangumi) is AddResult.ADDED:
                 logger.info(
                     f"Collections of {bangumi.official_title} Season {bangumi.season} completed."
                 )
                 for torrent in torrents:
                     torrent.downloaded = True
+                    torrent.bangumi_id = bangumi.id
                 bangumi.eps_collect = True
-                # update() returns False when no existing row matches
-                # bangumi.id (i.e. this is a brand-new bangumi), in which
-                # case it needs to be inserted instead.
-                if not await db.bangumi.update(bangumi):
-                    await db.bangumi.add(bangumi)
+                # 只更新 eps_collect 单个字段：解析到已存在行时，整行
+                # update 会用刚解析的默认值覆盖用户调好的 offset/filter
+                if bangumi.id is not None:
+                    await db.bangumi.mark_eps_collect(bangumi.id)
                 await db.torrent.add_all(torrents)
                 return ResponseModel(
                     status=True,
@@ -47,6 +88,10 @@ class SeasonCollector:
                     msg_zh=f"收集 {bangumi.official_title} 第 {bangumi.season} 季完成。",
                 )
             else:
+                if inserted and bangumi.id is not None:
+                    # 收集失败时回滚刚插入的行，不留下幽灵订阅规则
+                    await db.bangumi.delete_one(bangumi.id)
+                    bangumi.id = None  # type: ignore[assignment]
                 logger.warning(
                     f"Already collected {bangumi.official_title} Season {bangumi.season}."
                 )
@@ -69,9 +114,10 @@ class SeasonCollector:
                 aggregate=False,
                 parser=parser,
             )
-            result = await engine.download_bangumi(data)
-            await db.bangumi.add(data)
-            return result
+            # 先落库拿到 id（重复订阅时解析已存在行的 id）：download_bangumi
+            # 里 add_torrent 的 ab:<id> 标签和种子行的 bangumi_id 关联都依赖它
+            await _ensure_bangumi_id(db, data)
+            return await engine.download_bangumi(data)
 
 
 async def eps_complete():
diff --git a/backend/src/module/manager/renamer.py b/backend/src/module/manager/renamer.py
index 7fb7512c..1c28044a 100644
--- a/backend/src/module/manager/renamer.py
+++ b/backend/src/module/manager/renamer.py
@@ -25,6 +25,11 @@ _PENDING_RENAME_COOLDOWN = 300  # 5 minutes cooldown before retrying same rename
 _CLEANUP_INTERVAL = 60  # Clean up pending cache at most once per minute
 _last_cleanup_time: float = 0
 
+# 处理完成标记：供外部脚本（filebot、hlink 等）过滤 AB 已重命名的任务 (#147)。
+# 语义 = 顶层媒体文件全部就位；字幕在同一轮循环里紧随其后重命名，深层
+# 嵌套文件（特典/花絮）设计上从不重命名——两者都不阻塞打标
+_RENAMED_TAG = "ab:renamed"
+
 
 class Renamer:
     def __init__(self, client: DownloadClient):
@@ -56,6 +61,30 @@ class Renamer:
             )
         logger.debug("Checked %s files", torrent_count)
 
+    @staticmethod
+    def _adjust_episode(original: int | float, episode_offset: int) -> int | float:
+        if original == 0 and episode_offset != 0:
+            # Episode 0 is a special/OVA — never apply offset to avoid
+            # overwriting regular episodes (see issue #977)
+            return 0
+        adjusted = original + episode_offset
+        # An offset producing a non-positive result (e.g., EP5 + offset -10)
+        # is almost always a misconfiguration, so revert to original.
+        if adjusted < 0 or (adjusted == 0 and original > 0):
+            logger.warning(
+                f"Episode offset {episode_offset} would make episode {original} non-positive, ignoring offset"
+            )
+            return original
+        return adjusted
+
+    @staticmethod
+    def _format_episode(episode: int | float) -> str:
+        # 总集篇等半集（12.5）保留小数，否则会覆盖同季的整数集 (#667)；
+        # 整数值沿用两位补零
+        if isinstance(episode, float) and episode.is_integer():
+            episode = int(episode)
+        return f"0{episode}" if episode < 10 else str(episode)
+
     @staticmethod
     def gen_path(
         file_info: EpisodeFile | SubtitleFile,
@@ -69,31 +98,22 @@ class Renamer:
         # So we use file_info.season directly without applying offset again
         season_num = file_info.season
         season = f"0{season_num}" if season_num < 10 else season_num
-        # Apply episode offset
-        original_episode = int(file_info.episode)
-        if original_episode == 0 and episode_offset != 0:
-            # Episode 0 is a special/OVA — never apply offset to avoid
-            # overwriting regular episodes (see issue #977)
-            adjusted_episode = 0
-        else:
-            adjusted_episode = original_episode + episode_offset
-        # An offset producing a non-positive result (e.g., EP5 + offset -10)
-        # is almost always a misconfiguration, so revert to original.
-        if adjusted_episode < 0 or (adjusted_episode == 0 and original_episode > 0):
-            adjusted_episode = original_episode
-            logger.warning(
-                f"Episode offset {episode_offset} would make episode {original_episode} non-positive, ignoring offset"
-            )
-        episode = f"0{adjusted_episode}" if adjusted_episode < 10 else adjusted_episode
+        episode = Renamer._format_episode(
+            Renamer._adjust_episode(file_info.episode, episode_offset)
+        )
         # 注意：group_tag 只影响 qB RSS 规则名（downloader/path.py 的 rule_name），
         # 从不写进重命名后的文件名——已有做种媒体库的文件名必须保持稳定，
         # 否则升级后会触发整库批量重命名，破坏 Plex/Jellyfin 索引与硬链接
         if method == "none" or method == "subtitle_none":
             return file_info.media_path
+        # 注意：这里的 title/bangumi_name 来自已存在于磁盘上的文件/文件夹名
+        # （单个路径分量，不可能含分隔符），不做保留字符清洗——追加清洗会让
+        # 既有做种库（如含 ":" 的标题）在升级后被整库批量重命名 (#721 评审)
+        title = file_info.title
         if file_info.episode_type == "movie":
             # 电影/剧场版：Title (Year).ext，不使用 SxxExx 编号。bangumi_name 由
             # 调用方传入，与 gen_save_path 的文件夹命名保持一致 (Title (Year))
-            base = bangumi_name if "advance" in method else file_info.title
+            base = bangumi_name if "advance" in method else title
             if method.startswith("subtitle_"):
                 assert isinstance(
                     file_info, SubtitleFile
@@ -101,7 +121,7 @@ class Renamer:
                 return f"{base}.{file_info.language}{file_info.suffix}"
             return f"{base}{file_info.suffix}"
         elif method == "pn":
-            return f"{file_info.title} S{season}E{episode}{file_info.suffix}"
+            return f"{title} S{season}E{episode}{file_info.suffix}"
         elif method == "advance":
             return f"{bangumi_name} S{season}E{episode}{file_info.suffix}"
         elif method == "normal":
@@ -111,7 +131,7 @@ class Renamer:
             assert isinstance(
                 file_info, SubtitleFile
             ), "subtitle_pn requires a SubtitleFile"
-            return f"{file_info.title} S{season}E{episode}.{file_info.language}{file_info.suffix}"
+            return f"{title} S{season}E{episode}.{file_info.language}{file_info.suffix}"
         elif method == "subtitle_advance":
             assert isinstance(
                 file_info, SubtitleFile
@@ -121,6 +141,19 @@ class Renamer:
             logger.error(f"Unknown rename method: {method}")
             return file_info.media_path
 
+    async def _mark_renamed(self, _hash: str, existing_tags: str | None) -> None:
+        """给处理完成的种子打 ``ab:renamed`` 标签；已带标签时不再调 API。
+
+        打标失败绝不能影响重命名主流程（重命名已经成功、通知必须发出、
+        本轮其余种子必须继续处理）——吞掉异常，下一轮会自动补打。
+        """
+        if _RENAMED_TAG in (t.strip() for t in (existing_tags or "").split(",")):
+            return
+        try:
+            await self.client.add_tag(_hash, _RENAMED_TAG)
+        except Exception as e:
+            logger.warning("Failed to tag %s as renamed: %s", _hash[:8], e)
+
     async def rename_file(
         self,
         torrent_name: str,
@@ -132,6 +165,7 @@ class Renamer:
         episode_offset: int = 0,
         season_offset: int = 0,
         episode_type: str = "episode",
+        existing_tags: str | None = None,
         **kwargs,
     ):
         ep = self._parser.torrent_parser(
@@ -148,7 +182,12 @@ class Renamer:
                 episode_offset=episode_offset,
                 season_offset=season_offset,
             )
-            if media_path != new_path:
+            if media_path == new_path:
+                # 已符合目标命名（如重启后再次扫描）：视为处理完成。
+                # none/normal 是直通方法，没有"重命名完成"的语义，不打标
+                if method not in ("none", "normal"):
+                    await self._mark_renamed(_hash, existing_tags)
+            else:
                 # Check if this rename was recently attempted but didn't take effect
                 # (qBittorrent can return 200 but delay actual rename while seeding)
                 pending_key = (_hash, media_path, new_path)
@@ -165,21 +204,13 @@ class Renamer:
                 ):
                     # Rename verified successful, remove from pending cache
                     _pending_renames.pop(pending_key, None)
+                    await self._mark_renamed(_hash, existing_tags)
                     # Season comes from folder which already has offset applied
                     # Only apply episode offset
-                    original_ep = int(ep.episode)
-                    if original_ep == 0 and episode_offset != 0:
-                        adjusted_episode = 0
-                    else:
-                        adjusted_episode = original_ep + episode_offset
-                    if adjusted_episode < 0 or (
-                        adjusted_episode == 0 and original_ep > 0
-                    ):
-                        adjusted_episode = original_ep
                     return Notification(
                         official_title=bangumi_name,
                         season=ep.season,
-                        episode=adjusted_episode,
+                        episode=self._adjust_episode(ep.episode, episode_offset),
                     )
                 else:
                     # Rename API returned success but file wasn't actually renamed
@@ -217,6 +248,7 @@ class Renamer:
         season_offset: int = 0,
         episode_type: str = "episode",
         file_sizes: dict[str, int] | None = None,
+        existing_tags: str | None = None,
         **kwargs,
     ):
         # 多文件电影种子（正片 + 特典/花絮）：所有文件会解析出同一标题，
@@ -229,6 +261,7 @@ class Renamer:
                     movie_primary = max(ep_list, key=lambda p: file_sizes.get(p, 0))
                 else:
                     movie_primary = ep_list[0]
+        all_renamed = True
         for media_path in media_list:
             if is_ep(media_path):
                 ep = self._parser.torrent_parser(
@@ -256,11 +289,19 @@ class Renamer:
                             _hash=_hash, old_path=media_path, new_path=new_path
                         )
                         if not renamed:
+                            all_renamed = False
                             logger.warning(f"{media_path} rename failed")
                             # Delete bad torrent.
                             if settings.bangumi_manage.remove_bad_torrent:
                                 await self.client.delete_torrent(_hash)
                                 break
+                else:
+                    # 解析失败的媒体文件不会被重命名——不能算处理完成
+                    all_renamed = False
+        # 全部媒体文件就位（含本轮无需改名的情况）才算处理完成；
+        # none/normal 直通方法没有"重命名完成"的语义，不打标
+        if all_renamed and method not in ("none", "normal"):
+            await self._mark_renamed(_hash, existing_tags)
 
     async def rename_subtitles(
         self,
@@ -568,6 +609,8 @@ class Renamer:
                 "episode_offset": episode_offset,
                 "season_offset": season_offset,
                 "episode_type": episode_type,
+                # 处理完成后打 ab:renamed 标签用；已带标签则跳过 API 调用
+                "existing_tags": info.get("tags"),
             }
             # Rename single media file
             if len(media_list) == 1:
diff --git a/backend/src/module/models/bangumi.py b/backend/src/module/models/bangumi.py
index 1bac9478..69789087 100644
--- a/backend/src/module/models/bangumi.py
+++ b/backend/src/module/models/bangumi.py
@@ -113,7 +113,8 @@ class BangumiUpdate(SQLModel):
 class Notification(BaseModel):
     official_title: str = Field(..., alias="official_title", title="番剧名")
     season: int = Field(..., alias="season", title="番剧季度")
-    episode: int = Field(..., alias="episode", title="番剧集数")
+    # int | float：总集篇等半集（12.5）在通知里保留小数 (#667)
+    episode: int | float = Field(..., alias="episode", title="番剧集数")
     poster_path: Optional[str] = Field(None, alias="poster_path", title="番剧海报路径")
 
 
diff --git a/backend/src/module/models/config.py b/backend/src/module/models/config.py
index e6054314..09205682 100644
--- a/backend/src/module/models/config.py
+++ b/backend/src/module/models/config.py
@@ -90,6 +90,8 @@ class Network(BaseModel):
     tmdb_base_url: str = Field(
         default="https://api.themoviedb.org", description="TMDB API base URL"
     )
+    # 留空时回退到内置共享 key；自配 key 可避开共享 key 的限流 (#975)
+    tmdb_api_key: str = Field(default="", description="Custom TMDB API key")
     bgm_base_url: str = Field(
         default="https://api.bgm.tv", description="Bangumi (bgm.tv) API base URL"
     )
diff --git a/backend/src/module/notification/providers/server_chan.py b/backend/src/module/notification/providers/server_chan.py
index 03f753d3..14a9cd7f 100644
--- a/backend/src/module/notification/providers/server_chan.py
+++ b/backend/src/module/notification/providers/server_chan.py
@@ -1,6 +1,7 @@
 """Server Chan notification provider."""
 
 import logging
+import re
 from typing import TYPE_CHECKING
 
 from module.models.bangumi import Notification
@@ -11,6 +12,9 @@ if TYPE_CHECKING:
 
 logger = logging.getLogger(__name__)
 
+# Server酱³ 的 sendkey 形如 sctp<uid>t<key>，推送端点与 Turbo 版不同 (#904)
+_SC3_KEY_RE = re.compile(r"^sctp(\d+)t")
+
 
 class ServerChanProvider(NotificationProvider):
     """Server Chan (Server酱) notification provider for WeChat."""
@@ -18,7 +22,13 @@ class ServerChanProvider(NotificationProvider):
     def __init__(self, config: "ProviderConfig"):
         super().__init__(config)
         token = config.token
-        self.notification_url = f"https://sctapi.ftqq.com/{token}.send"
+        sc3 = _SC3_KEY_RE.match(token)
+        if sc3:
+            self.notification_url = (
+                f"https://{sc3.group(1)}.push.ft07.com/send/{token}.send"
+            )
+        else:
+            self.notification_url = f"https://sctapi.ftqq.com/{token}.send"
 
     async def send(self, notification: Notification) -> bool:
         """Send notification via Server Chan."""
diff --git a/backend/src/module/parser/analyser/tmdb_parser.py b/backend/src/module/parser/analyser/tmdb_parser.py
index c823a243..d16002eb 100644
--- a/backend/src/module/parser/analyser/tmdb_parser.py
+++ b/backend/src/module/parser/analyser/tmdb_parser.py
@@ -18,6 +18,11 @@ def _tmdb_url() -> str:
     return settings.network.tmdb_base_url.rstrip("/")
 
 
+def _api_key() -> str:
+    # 用户自配 key 优先（#975）；留空回退到内置共享 key。同样读实时值
+    return settings.network.tmdb_api_key or TMDB_API
+
+
 # In-memory cache for TMDB lookups to avoid repeated API calls
 _TMDB_CACHE_MAX = 512
 _tmdb_cache: OrderedDict[str, "TMDBInfo | None"] = OrderedDict()
@@ -59,19 +64,19 @@ LANGUAGE = {"zh": "zh-CN", "jp": "ja-JP", "en": "en-US"}
 
 
 def search_url(e):
-    return f"{_tmdb_url()}/3/search/tv?api_key={TMDB_API}&page=1&query={e}&include_adult=false"
+    return f"{_tmdb_url()}/3/search/tv?api_key={_api_key()}&page=1&query={e}&include_adult=false"
 
 
 def search_movie_url(e):
-    return f"{_tmdb_url()}/3/search/movie?api_key={TMDB_API}&page=1&query={e}&include_adult=false"
+    return f"{_tmdb_url()}/3/search/movie?api_key={_api_key()}&page=1&query={e}&include_adult=false"
 
 
 def info_url(e, key):
-    return f"{_tmdb_url()}/3/tv/{e}?api_key={TMDB_API}&language={LANGUAGE[key]}"
+    return f"{_tmdb_url()}/3/tv/{e}?api_key={_api_key()}&language={LANGUAGE[key]}"
 
 
 def season_url(tv_id, season_number, key):
-    return f"{_tmdb_url()}/3/tv/{tv_id}/season/{season_number}?api_key={TMDB_API}&language={LANGUAGE[key]}"
+    return f"{_tmdb_url()}/3/tv/{tv_id}/season/{season_number}?api_key={_api_key()}&language={LANGUAGE[key]}"
 
 
 async def is_animation(tv_id, language, req: RequestContent) -> bool:
diff --git a/backend/src/module/rss/engine.py b/backend/src/module/rss/engine.py
index 964316e3..8750ef28 100644
--- a/backend/src/module/rss/engine.py
+++ b/backend/src/module/rss/engine.py
@@ -400,6 +400,9 @@ class RSSEngine:
                         )
                     for torrent in torrents:
                         torrent.downloaded = True
+                        # 关联 bangumi_id，避免已匹配的种子被记成孤儿
+                        if bangumi.id is not None:
+                            torrent.bangumi_id = bangumi.id
                     await self.db.torrent.add_all(torrents)
                     return ResponseModel(
                         status=True,
diff --git a/backend/src/test/test_api_downloader.py b/backend/src/test/test_api_downloader.py
index 2c2270e4..f596744e 100644
--- a/backend/src/test/test_api_downloader.py
+++ b/backend/src/test/test_api_downloader.py
@@ -369,7 +369,8 @@ class TestAutoTagTorrents:
             deleted=False,
         )
 
-        # Mock torrents - one untagged, one already tagged
+        # Mock torrents - one untagged, one already tagged, one only carrying
+        # the ab:renamed completion marker (must NOT count as linked)
         mock_download_client.get_torrent_info.return_value = [
             {
                 "hash": "abc123",
@@ -383,6 +384,12 @@ class TestAutoTagTorrents:
                 "save_path": "/downloads/Other Anime/Season 1",
                 "tags": "ab:456",  # Already tagged
             },
+            {
+                "hash": "ghi789",
+                "name": "[TestGroup] Test Anime - 02.mkv",
+                "save_path": "/downloads/Test Anime/Season 1",
+                "tags": "ab:renamed",  # 处理完成标记 ≠ 已关联番剧
+            },
         ]
 
         with patch("module.api.downloader.DownloadClient") as MockClient:
@@ -402,9 +409,13 @@ class TestAutoTagTorrents:
         assert response.status_code == 200
         data = response.json()
         assert data["status"] is True
-        assert data["tagged_count"] == 1
-        # Only the untagged torrent should be tagged
-        mock_download_client.add_tag.assert_called_once_with("abc123", "ab:123")
+        assert data["tagged_count"] == 2
+        # The untagged torrent and the ab:renamed-only torrent get linked;
+        # the ab:456 one is skipped
+        assert mock_download_client.add_tag.call_args_list == [
+            (("abc123", "ab:123"),),
+            (("ghi789", "ab:123"),),
+        ]
 
     def test_auto_tag_no_matches(self, authed_client, mock_download_client):
         """POST /downloader/torrents/tag/auto handles unmatched torrents."""
diff --git a/backend/src/test/test_collector.py b/backend/src/test/test_collector.py
new file mode 100644
index 00000000..57668723
--- /dev/null
+++ b/backend/src/test/test_collector.py
@@ -0,0 +1,203 @@
+"""Tests for SeasonCollector: torrents must be persisted with bangumi_id.
+
+Regression tests for the orphan-torrent bug: torrents added via
+subscribe/collect were stored with ``bangumi_id=None`` and showed up as
+orphans regardless of the ``track_orphans`` setting.
+"""
+
+from unittest.mock import AsyncMock, patch
+
+from module.database import Database
+from module.downloader import AddResult
+from module.manager.collector import SeasonCollector
+from module.models import Torrent
+from test.factories import make_bangumi
+
+
+def _async_ctx(inner):
+    ctx = AsyncMock()
+    ctx.__aenter__ = AsyncMock(return_value=inner)
+    ctx.__aexit__ = AsyncMock(return_value=False)
+    return ctx
+
+
+def _req_with_torrents(torrents):
+    req = AsyncMock()
+    req.get_torrents = AsyncMock(return_value=torrents)
+    return _async_ctx(req)
+
+
+def _make_torrents():
+    return [
+        Torrent(
+            name="[TestGroup] Test Anime Raw - 01 [1080p].mkv",
+            url="https://example.com/ep1.torrent",
+        ),
+        Torrent(
+            name="[TestGroup] Test Anime Raw - 02 [1080p].mkv",
+            url="https://example.com/ep2.torrent",
+        ),
+    ]
+
+
+class TestCollectSeason:
+    async def test_torrents_persisted_with_bangumi_id(self):
+        bangumi = make_bangumi(filter="")
+        torrents = _make_torrents()
+        client = AsyncMock()
+        client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+        collector = SeasonCollector(client)
+
+        with patch(
+            "module.manager.collector.RequestContent",
+            return_value=_req_with_torrents(torrents),
+        ):
+            resp = await collector.collect_season(bangumi, "https://example.com/rss")
+
+        assert resp.status is True
+        async with Database() as db:
+            stored = await db.torrent.search_all()
+            assert len(stored) == 2
+            assert all(t.bangumi_id == bangumi.id for t in stored)
+            assert await db.torrent.count_orphans() == 0
+
+    async def test_duplicate_resolution_preserves_existing_row_fields(self):
+        """解析到已存在行时不能用刚解析的默认值覆盖用户调好的配置。"""
+        existing = make_bangumi(filter="", episode_offset=12)
+        async with Database() as db:
+            assert await db.bangumi.add(existing)
+
+        payload = make_bangumi(filter="", episode_offset=0)  # 同 key，默认 offset
+        client = AsyncMock()
+        client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+        collector = SeasonCollector(client)
+        with patch(
+            "module.manager.collector.RequestContent",
+            return_value=_req_with_torrents(_make_torrents()),
+        ):
+            resp = await collector.collect_season(payload, "https://example.com/rss")
+
+        assert resp.status is True
+        async with Database() as db:
+            row = await db.bangumi.search_id(existing.id)
+            assert row is not None
+            assert row.episode_offset == 12
+            assert row.eps_collect is True
+
+    async def test_failed_collect_leaves_no_phantom_bangumi(self):
+        """下载器投递失败时不能留下幽灵订阅规则。"""
+        bangumi = make_bangumi(filter="")
+        client = AsyncMock()
+        client.add_torrent = AsyncMock(return_value=AddResult.FAILED)
+        collector = SeasonCollector(client)
+        with patch(
+            "module.manager.collector.RequestContent",
+            return_value=_req_with_torrents(_make_torrents()),
+        ):
+            resp = await collector.collect_season(bangumi, "https://example.com/rss")
+
+        assert resp.status is False
+        async with Database() as db:
+            assert await db.bangumi.search_all() == []
+
+    async def test_add_torrent_called_with_persisted_bangumi(self):
+        """add_torrent 打 ab:<id> 标签依赖调用时 bangumi.id 已存在。"""
+        bangumi = make_bangumi(filter="")
+        client = AsyncMock()
+        client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+        collector = SeasonCollector(client)
+
+        with patch(
+            "module.manager.collector.RequestContent",
+            return_value=_req_with_torrents(_make_torrents()),
+        ):
+            await collector.collect_season(bangumi, "https://example.com/rss")
+
+        passed_bangumi = client.add_torrent.call_args.args[1]
+        assert passed_bangumi.id is not None
+
+
+class TestSubscribeSeason:
+    async def test_existing_bangumi_links_torrents_to_existing_id(self):
+        """重复订阅已存在的番剧（add 返回 False）时，种子必须挂到
+        已存在行的 id 上，不能被记成孤儿。"""
+        existing = make_bangumi(filter="")
+        async with Database() as db:
+            assert await db.bangumi.add(existing)
+
+        data = make_bangumi(filter="")  # 同 title_raw+group_name -> 精确重复
+        downloader_client = AsyncMock()
+        downloader_client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+        with (
+            patch(
+                "module.rss.engine.RequestContent",
+                return_value=_req_with_torrents(_make_torrents()),
+            ),
+            patch(
+                "module.rss.engine.DownloadClient",
+                return_value=_async_ctx(downloader_client),
+            ),
+        ):
+            result = await SeasonCollector.subscribe_season(data)
+
+        assert result.status is True
+        async with Database() as db:
+            stored = await db.torrent.search_all()
+            assert len(stored) == 2
+            assert all(t.bangumi_id == existing.id for t in stored)
+            assert await db.torrent.count_orphans() == 0
+
+    async def test_deleted_duplicate_is_restored_and_linked(self):
+        """重新订阅已禁用的规则时重新启用该行并把种子挂上去——否则种子
+        要么变孤儿、要么挂到对下游查询不可见的行上。"""
+        existing = make_bangumi(filter="", deleted=True)
+        async with Database() as db:
+            assert await db.bangumi.add(existing)
+
+        data = make_bangumi(filter="")
+        downloader_client = AsyncMock()
+        downloader_client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+        with (
+            patch(
+                "module.rss.engine.RequestContent",
+                return_value=_req_with_torrents(_make_torrents()),
+            ),
+            patch(
+                "module.rss.engine.DownloadClient",
+                return_value=_async_ctx(downloader_client),
+            ),
+        ):
+            await SeasonCollector.subscribe_season(data)
+
+        async with Database() as db:
+            row = await db.bangumi.search_id(existing.id)
+            assert row is not None
+            assert row.deleted is False
+            stored = await db.torrent.search_all()
+            assert stored and all(t.bangumi_id == existing.id for t in stored)
+
+    async def test_torrents_persisted_with_bangumi_id(self):
+        data = make_bangumi(filter="")
+        torrents = _make_torrents()
+
+        downloader_client = AsyncMock()
+        downloader_client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+        with (
+            patch(
+                "module.rss.engine.RequestContent",
+                return_value=_req_with_torrents(torrents),
+            ),
+            patch(
+                "module.rss.engine.DownloadClient",
+                return_value=_async_ctx(downloader_client),
+            ),
+        ):
+            result = await SeasonCollector.subscribe_season(data)
+
+        assert result.status is True
+        assert data.id is not None
+        async with Database() as db:
+            stored = await db.torrent.search_all()
+            assert len(stored) == 2
+            assert all(t.bangumi_id == data.id for t in stored)
+            assert await db.torrent.count_orphans() == 0
diff --git a/backend/src/test/test_notification.py b/backend/src/test/test_notification.py
index 80d31784..7aee0dee 100644
--- a/backend/src/test/test_notification.py
+++ b/backend/src/test/test_notification.py
@@ -616,6 +616,28 @@ class TestDeliverText:
         assert data["title"] == "标题"
         assert data["desp"] == "正文"
 
+    def test_server_chan_legacy_key_uses_sctapi_endpoint(self):
+        config = ProviderConfig(type="server-chan", enabled=True, token="SCT123abc")
+        provider = ServerChanProvider(config)
+
+        assert provider.notification_url == "https://sctapi.ftqq.com/SCT123abc.send"
+
+    def test_server_chan_sc3_key_uses_ft07_endpoint(self):
+        """Server酱³ 的 sendkey 以 sctp<uid>t 开头，走 push.ft07.com 端点 (#904)。"""
+        config = ProviderConfig(type="server-chan", enabled=True, token="sctp456tXYZ")
+        provider = ServerChanProvider(config)
+
+        assert (
+            provider.notification_url
+            == "https://456.push.ft07.com/send/sctp456tXYZ.send"
+        )
+
+    def test_server_chan_malformed_sctp_key_falls_back_to_legacy(self):
+        config = ProviderConfig(type="server-chan", enabled=True, token="sctpXYZ")
+        provider = ServerChanProvider(config)
+
+        assert provider.notification_url == "https://sctapi.ftqq.com/sctpXYZ.send"
+
     async def test_telegram_deliver_text_posts_combined_text(self):
         config = ProviderConfig(
             type="telegram", enabled=True, token="test_token", chat_id="12345"
diff --git a/backend/src/test/test_path.py b/backend/src/test/test_path.py
index 0fa198c6..07b69f62 100644
--- a/backend/src/test/test_path.py
+++ b/backend/src/test/test_path.py
@@ -9,9 +9,42 @@ from module.downloader.path import (
     is_ep,
     path_to_bangumi,
     rule_name,
+    sanitize_path_fragment,
 )
 from test.factories import make_bangumi
 
+# ---------------------------------------------------------------------------
+# sanitize_path_fragment
+# ---------------------------------------------------------------------------
+
+
+class TestSanitizePathFragment:
+    def test_replaces_reserved_characters(self):
+        assert sanitize_path_fragment('A<B>C:D"E/F\\G|H?I*J') == "A B C D E F G H I J"
+
+    def test_collapses_whitespace_and_strips_trailing_dots(self):
+        assert sanitize_path_fragment("Name  ...") == "Name"
+
+    def test_preserves_cjk_and_brackets(self):
+        assert (
+            sanitize_path_fragment("[Sub] 孤独摇滚！(2022)") == "[Sub] 孤独摇滚！(2022)"
+        )
+
+    def test_idempotent(self):
+        once = sanitize_path_fragment("Fate/Zero: Part?2")
+        assert sanitize_path_fragment(once) == once
+
+    def test_all_reserved_title_falls_back_in_save_path(self):
+        """全保留字符的标题不能让保存路径坍缩出空目录层。"""
+        bangumi = make_bangumi(official_title="??", year=None)
+        with patch("module.downloader.path.settings") as mock_settings:
+            mock_settings.downloader.path = "/downloads/Bangumi"
+            result = gen_save_path(bangumi)
+
+        assert "//" not in result
+        assert "Unknown Bangumi" in result
+
+
 # ---------------------------------------------------------------------------
 # gen_save_path
 # ---------------------------------------------------------------------------
@@ -28,6 +61,16 @@ class TestGenSavePath:
         assert "My Anime (2024)" in result
         assert "Season 2" in result
 
+    def test_reserved_characters_sanitized_in_folder(self):
+        """标题里的保留字符不能把保存路径拆成多级目录 (#721)。"""
+        bangumi = make_bangumi(official_title="Fate/Zero: Part?2", year="2024")
+        with patch("module.downloader.path.settings") as mock_settings:
+            mock_settings.downloader.path = "/downloads/Bangumi"
+            result = gen_save_path(bangumi)
+
+        assert "Fate Zero Part 2 (2024)" in result
+        assert result.count("/") == 4  # /downloads/Bangumi/<folder>/Season 1
+
     def test_without_year(self):
         """Save path omits year parentheses when year is None."""
         bangumi = make_bangumi(official_title="My Anime", year=None, season=1)
diff --git a/backend/src/test/test_renamer.py b/backend/src/test/test_renamer.py
index e71f2127..32e5af57 100644
--- a/backend/src/test/test_renamer.py
+++ b/backend/src/test/test_renamer.py
@@ -31,6 +31,19 @@ class TestGenPath:
         result = Renamer.gen_path(ep, "Bangumi Name", method="advance")
         assert result == "Bangumi Name S02E12.mkv"
 
+    def test_title_reserved_characters_kept_verbatim(self):
+        """既有磁盘文件解析出的标题原样保留：追加清洗会让含 ":" 等字符的
+        既有做种库在升级后被整库批量重命名。"""
+        ep = EpisodeFile(
+            media_path="old.mkv",
+            title="Re:Zero Season 2",
+            season=1,
+            episode=5,
+            suffix=".mkv",
+        )
+        result = Renamer.gen_path(ep, "Bangumi Name", method="pn")
+        assert result == "Re:Zero Season 2 S01E05.mkv"
+
     def test_none_method(self):
         """none method: returns original media_path unchanged."""
         ep = EpisodeFile(
@@ -120,6 +133,50 @@ class TestGenPath:
 # ---------------------------------------------------------------------------
 
 
+class TestGenPathFractionalEpisode:
+    """总集篇等半集（12.5）必须保留小数，否则会覆盖同季的整数集 (#667)。"""
+
+    def test_pn_keeps_fraction(self):
+        ep = EpisodeFile(
+            media_path="old.mkv",
+            title="My Anime",
+            season=1,
+            episode=12.5,
+            suffix=".mkv",
+        )
+        result = Renamer.gen_path(ep, "Bangumi Name", method="pn")
+        assert result == "My Anime S01E12.5.mkv"
+
+    def test_fraction_below_ten_zero_padded(self):
+        ep = EpisodeFile(
+            media_path="old.mkv", title="My Anime", season=1, episode=9.5, suffix=".mkv"
+        )
+        result = Renamer.gen_path(ep, "Bangumi Name", method="pn")
+        assert result == "My Anime S01E09.5.mkv"
+
+    def test_offset_applies_to_fraction(self):
+        ep = EpisodeFile(
+            media_path="old.mkv",
+            title="My Anime",
+            season=1,
+            episode=13.5,
+            suffix=".mkv",
+        )
+        result = Renamer.gen_path(ep, "Bangumi Name", method="pn", episode_offset=-1)
+        assert result == "My Anime S01E12.5.mkv"
+
+    def test_integer_valued_float_formats_as_int(self):
+        ep = EpisodeFile(
+            media_path="old.mkv",
+            title="My Anime",
+            season=1,
+            episode=12.0,
+            suffix=".mkv",
+        )
+        result = Renamer.gen_path(ep, "Bangumi Name", method="pn")
+        assert result == "My Anime S01E12.mkv"
+
+
 class TestGenPathMovie:
     """episode_type='movie' bypasses SxxExx numbering entirely, producing a
     'Title (Year).ext' layout instead."""
@@ -320,6 +377,141 @@ class TestRenameFile:
         assert result.season == 1
         assert result.episode == 5
 
+    async def test_fractional_episode_notification_keeps_fraction(self, renamer):
+        """半集重命名后通知里的集数保留小数 (#667)。"""
+        ep = EpisodeFile(
+            media_path="old.mkv",
+            title="My Anime",
+            season=1,
+            episode=12.5,
+            suffix=".mkv",
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            renamer.client.client.torrents_rename_file.return_value = True
+            result = await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 12.5.mkv",
+                media_path="old.mkv",
+                bangumi_name="My Anime",
+                method="pn",
+                season=1,
+                _hash="hash123",
+            )
+
+        assert result is not None
+        assert result.episode == 12.5
+
+    async def test_successful_rename_adds_renamed_tag(self, renamer):
+        """重命名成功后给种子打 ab:renamed 标签，供外部脚本识别 (#147)。"""
+        ep = EpisodeFile(
+            media_path="old.mkv", title="My Anime", season=1, episode=5, suffix=".mkv"
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            renamer.client.client.torrents_rename_file.return_value = True
+            await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 05.mkv",
+                media_path="old.mkv",
+                bangumi_name="My Anime",
+                method="pn",
+                season=1,
+                _hash="hash123",
+            )
+
+        renamer.client.client.add_tag.assert_awaited_once_with("hash123", "ab:renamed")
+
+    async def test_conformant_file_adds_renamed_tag(self, renamer):
+        """文件名已符合目标命名（如重启后再扫）也视为处理完成，补标签。"""
+        ep = EpisodeFile(
+            media_path="My Anime S01E05.mkv",
+            title="My Anime",
+            season=1,
+            episode=5,
+            suffix=".mkv",
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 05.mkv",
+                media_path="My Anime S01E05.mkv",
+                bangumi_name="My Anime",
+                method="pn",
+                season=1,
+                _hash="hash123",
+            )
+
+        renamer.client.client.torrents_rename_file.assert_not_awaited()
+        renamer.client.client.add_tag.assert_awaited_once_with("hash123", "ab:renamed")
+
+    async def test_existing_renamed_tag_not_re_added(self, renamer):
+        ep = EpisodeFile(
+            media_path="old.mkv", title="My Anime", season=1, episode=5, suffix=".mkv"
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            renamer.client.client.torrents_rename_file.return_value = True
+            await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 05.mkv",
+                media_path="old.mkv",
+                bangumi_name="My Anime",
+                method="pn",
+                season=1,
+                _hash="hash123",
+                existing_tags="ab:42, ab:renamed",
+            )
+
+        renamer.client.client.add_tag.assert_not_awaited()
+
+    async def test_tagging_failure_does_not_break_rename(self, renamer):
+        """打标 API 抛异常时通知仍要返回——打标绝不能影响主流程。"""
+        ep = EpisodeFile(
+            media_path="old.mkv", title="My Anime", season=1, episode=5, suffix=".mkv"
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            renamer.client.client.torrents_rename_file.return_value = True
+            renamer.client.client.add_tag.side_effect = RuntimeError("qB down")
+            result = await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 05.mkv",
+                media_path="old.mkv",
+                bangumi_name="My Anime",
+                method="pn",
+                season=1,
+                _hash="hash-tag-fail",
+            )
+
+        assert result is not None
+        assert result.episode == 5
+
+    async def test_failed_rename_does_not_tag(self, renamer):
+        ep = EpisodeFile(
+            media_path="old.mkv", title="My Anime", season=1, episode=5, suffix=".mkv"
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            renamer.client.client.torrents_rename_file.return_value = False
+            await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 05.mkv",
+                media_path="old.mkv",
+                bangumi_name="My Anime",
+                method="pn",
+                season=1,
+                _hash="hash-fail-tag",
+            )
+
+        renamer.client.client.add_tag.assert_not_awaited()
+
+    async def test_none_method_does_not_tag(self, renamer):
+        """none 方法不做重命名，也不应打处理完成标签。"""
+        ep = EpisodeFile(
+            media_path="old.mkv", title="My Anime", season=1, episode=5, suffix=".mkv"
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            await renamer.rename_file(
+                torrent_name="[Sub] My Anime - 05.mkv",
+                media_path="old.mkv",
+                bangumi_name="My Anime",
+                method="none",
+                season=1,
+                _hash="hash123",
+            )
+
+        renamer.client.client.add_tag.assert_not_awaited()
+
     async def test_parse_fails_no_remove(self, renamer):
         """When parser returns None and remove_bad_torrent=False, returns None."""
         with patch.object(renamer._parser, "torrent_parser", return_value=None):
@@ -429,6 +621,75 @@ class TestRenameCollection:
 
         assert renamer.client.client.torrents_rename_file.call_count == 3
 
+    async def test_collection_success_adds_renamed_tag(self, renamer):
+        """合集全部重命名成功后打 ab:renamed 标签 (#147)。"""
+        media_list = ["ep01.mkv", "ep02.mkv"]
+
+        def mock_parser(torrent_path, season, **kwargs):
+            ep_num = int(torrent_path.replace("ep", "").replace(".mkv", ""))
+            return EpisodeFile(
+                media_path=torrent_path,
+                title="Anime",
+                season=season,
+                episode=ep_num,
+                suffix=".mkv",
+            )
+
+        with patch.object(renamer._parser, "torrent_parser", side_effect=mock_parser):
+            renamer.client.client.torrents_rename_file.return_value = True
+            await renamer.rename_collection(
+                media_list=media_list,
+                bangumi_name="Anime",
+                season=1,
+                method="pn",
+                _hash="hash123",
+            )
+
+        renamer.client.client.add_tag.assert_awaited_once_with("hash123", "ab:renamed")
+
+    async def test_collection_parse_failure_does_not_tag(self, renamer):
+        """有媒体文件解析失败（不会被重命名）时不能打处理完成标签。"""
+        media_list = ["ep01.mkv", "garbage-name.mkv"]
+
+        def mock_parser(torrent_path, season, **kwargs):
+            if "garbage" in torrent_path:
+                return None
+            return EpisodeFile(
+                media_path=torrent_path,
+                title="Anime",
+                season=season,
+                episode=1,
+                suffix=".mkv",
+            )
+
+        with patch.object(renamer._parser, "torrent_parser", side_effect=mock_parser):
+            renamer.client.client.torrents_rename_file.return_value = True
+            await renamer.rename_collection(
+                media_list=media_list,
+                bangumi_name="Anime",
+                season=1,
+                method="pn",
+                _hash="hash-parse-fail",
+            )
+
+        renamer.client.client.add_tag.assert_not_awaited()
+
+    async def test_collection_failure_does_not_tag(self, renamer):
+        ep = EpisodeFile(
+            media_path="ep01.mkv", title="Anime", season=1, episode=1, suffix=".mkv"
+        )
+        with patch.object(renamer._parser, "torrent_parser", return_value=ep):
+            renamer.client.client.torrents_rename_file.return_value = False
+            await renamer.rename_collection(
+                media_list=["ep01.mkv"],
+                bangumi_name="Anime",
+                season=1,
+                method="pn",
+                _hash="hash-collection-fail",
+            )
+
+        renamer.client.client.add_tag.assert_not_awaited()
+
     async def test_skips_deep_files(self, renamer):
         """Files deeper than 2 levels are skipped (not is_ep)."""
         media_list = ["ep01.mkv", "extras/bonus/ep_sp.mkv"]
diff --git a/backend/src/test/test_rss_engine_new.py b/backend/src/test/test_rss_engine_new.py
index 6a0baeed..dfa12c90 100644
--- a/backend/src/test/test_rss_engine_new.py
+++ b/backend/src/test/test_rss_engine_new.py
@@ -323,9 +323,7 @@ class TestRefreshRss:
         assert len(all_torrents) == 1
         assert all_torrents[0].bangumi_id is not None
 
-    async def test_track_orphans_on_persists_unmatched(
-        self, rss_engine, test_settings
-    ):
+    async def test_track_orphans_on_persists_unmatched(self, rss_engine, test_settings):
         """默认开启时行为不变：未匹配种子以 bangumi_id NULL 入库。"""
         rss_item = make_rss_item(enabled=True)
         await rss_engine.db.rss.add(rss_item)
@@ -600,6 +598,38 @@ class TestRefreshRssRetry:
 
 
 class TestDownloadBangumi:
+    async def test_success_persists_torrents_with_bangumi_id(self, rss_engine):
+        """成功下载后种子行必须关联 bangumi_id，否则会被记成孤儿。"""
+        bangumi = make_bangumi(
+            official_title="Mushoku Tensei",
+            rss_link="https://example.com/rss",
+            filter="",
+        )
+        await rss_engine.db.bangumi.add(bangumi)
+        torrent = Torrent(
+            name="[Sub] Mushoku Tensei - 12 [1080p].mkv",
+            url="https://example.com/ep12.torrent",
+        )
+        with (
+            patch("module.rss.engine.RequestContent") as MockReq,
+            patch("module.rss.engine.DownloadClient") as MockClient,
+        ):
+            req = AsyncMock()
+            req.get_torrents = AsyncMock(return_value=[torrent])
+            MockReq.return_value.__aenter__ = AsyncMock(return_value=req)
+            MockReq.return_value.__aexit__ = AsyncMock(return_value=False)
+            client = AsyncMock()
+            client.add_torrent = AsyncMock(return_value=AddResult.ADDED)
+            MockClient.return_value.__aenter__ = AsyncMock(return_value=client)
+            MockClient.return_value.__aexit__ = AsyncMock(return_value=False)
+
+            resp = await rss_engine.download_bangumi(bangumi)
+
+        assert resp.status is True
+        stored = await rss_engine.db.torrent.search_all()
+        assert len(stored) == 1
+        assert stored[0].bangumi_id == bangumi.id
+
     async def test_failed_add_returns_failure_and_does_not_persist(self, rss_engine):
         bangumi = make_bangumi(
             official_title="Mushoku Tensei",
diff --git a/backend/src/test/test_tmdb.py b/backend/src/test/test_tmdb.py
index 7cd422cc..0b4d9ebd 100644
--- a/backend/src/test/test_tmdb.py
+++ b/backend/src/test/test_tmdb.py
@@ -148,6 +148,37 @@ async def test_tmdb_parser_movie_search_no_results_returns_none(mocker):
     assert tmdb_info is None
 
 
+def test_search_url_uses_custom_api_key():
+    """用户自配的 TMDB API key 优先于内置共享 key (#975)。"""
+    from unittest.mock import patch
+
+    with patch.object(tmdb_parser_module, "settings") as mock_settings:
+        mock_settings.network.tmdb_base_url = "https://api.themoviedb.org"
+        mock_settings.network.tmdb_api_key = "customkey123"
+        url = tmdb_parser_module.search_url("test")
+
+    assert "api_key=customkey123" in url
+
+
+def test_search_url_falls_back_to_builtin_key():
+    from unittest.mock import patch
+
+    from module.conf import TMDB_API
+
+    with patch.object(tmdb_parser_module, "settings") as mock_settings:
+        mock_settings.network.tmdb_base_url = "https://api.themoviedb.org"
+        mock_settings.network.tmdb_api_key = ""
+        url = tmdb_parser_module.search_url("test")
+
+    assert f"api_key={TMDB_API}" in url
+
+
+def test_network_config_tmdb_api_key_defaults_empty():
+    from module.models.config import Network
+
+    assert Network().tmdb_api_key == ""
+
+
 def test_reset_cache_clears_tmdb_cache():
     """reset_cache() must drop all cached lookups (called on config reload so
     a changed tmdb_base_url stops serving results from the old endpoint)."""
diff --git a/webui/src/components/setting/config-network.vue b/webui/src/components/setting/config-network.vue
new file mode 100644
index 00000000..8f6c75a5
--- /dev/null
+++ b/webui/src/components/setting/config-network.vue
@@ -0,0 +1,52 @@
+<script lang="ts" setup>
+import type { Network } from '#/config';
+import type { SettingItem } from '#/components';
+
+const { t } = useMyI18n();
+const { getSettingGroup } = useConfigStore();
+
+const network = getSettingGroup('network');
+
+const items: SettingItem<Network>[] = [
+  {
+    configKey: 'tmdb_base_url',
+    label: () => t('config.network_set.tmdb_base_url'),
+    type: 'input',
+    prop: {
+      type: 'text',
+      placeholder: 'https://api.themoviedb.org',
+    },
+  },
+  {
+    configKey: 'tmdb_api_key',
+    label: () => t('config.network_set.tmdb_api_key'),
+    type: 'input',
+    prop: {
+      type: 'password',
+      autocomplete: 'off',
+    },
+  },
+  {
+    configKey: 'bgm_base_url',
+    label: () => t('config.network_set.bgm_base_url'),
+    type: 'input',
+    prop: {
+      type: 'text',
+      placeholder: 'https://api.bgm.tv',
+    },
+  },
+];
+</script>
+
+<template>
+  <ab-fold-panel :title="$t('config.network_set.title')">
+    <div space-y-8>
+      <ab-setting
+        v-for="i in items"
+        :key="i.configKey"
+        v-bind="i"
+        v-model:data="network[i.configKey]"
+      ></ab-setting>
+    </div>
+  </ab-fold-panel>
+</template>
diff --git a/webui/src/i18n/en.json b/webui/src/i18n/en.json
index 51ffc195..3aa2a8de 100644
--- a/webui/src/i18n/en.json
+++ b/webui/src/i18n/en.json
@@ -118,6 +118,12 @@
       "type": "Proxy Type",
       "username": "Username"
     },
+    "network_set": {
+      "bgm_base_url": "Bangumi API URL",
+      "title": "Network Setting",
+      "tmdb_api_key": "TMDB API Key (optional)",
+      "tmdb_base_url": "TMDB API URL"
+    },
     "security_set": {
       "title": "Security",
       "hint": "Login whitelist: empty = allow all IPs. MCP whitelist: empty = deny all access.",
diff --git a/webui/src/i18n/zh-CN.json b/webui/src/i18n/zh-CN.json
index 87cc500e..edf16870 100644
--- a/webui/src/i18n/zh-CN.json
+++ b/webui/src/i18n/zh-CN.json
@@ -118,6 +118,12 @@
       "type": "类型",
       "username": "用户名"
     },
+    "network_set": {
+      "bgm_base_url": "Bangumi API 地址",
+      "title": "网络设置",
+      "tmdb_api_key": "TMDB API Key（可选）",
+      "tmdb_base_url": "TMDB API 地址"
+    },
     "security_set": {
       "title": "安全设置",
       "hint": "登录白名单：为空则允许所有 IP。MCP 白名单：为空则拒绝所有访问。",
diff --git a/webui/src/pages/index/config.vue b/webui/src/pages/index/config.vue
index 30a9b4d8..d183562d 100644
--- a/webui/src/pages/index/config.vue
+++ b/webui/src/pages/index/config.vue
@@ -8,6 +8,7 @@ import ConfigDownload from '@/components/setting/config-download.vue';
 import ConfigManage from '@/components/setting/config-manage.vue';
 import ConfigNotification from '@/components/setting/config-notification.vue';
 import ConfigProxy from '@/components/setting/config-proxy.vue';
+import ConfigNetwork from '@/components/setting/config-network.vue';
 import ConfigSearchProvider from '@/components/setting/config-search-provider.vue';
 import ConfigPlayer from '@/components/setting/config-player.vue';
 import ConfigLlm from '@/components/setting/config-llm.vue';
@@ -106,6 +107,13 @@ const sections: ConfigSection[] = [
     groups: ['proxy'],
     keywords: ['proxy', 'http', 'socks5', 'host', 'port'],
   },
+  {
+    id: 'network',
+    titleKey: 'config.network_set.title',
+    component: ConfigNetwork,
+    groups: ['network'],
+    keywords: ['network', 'tmdb', 'bangumi', 'bgm', 'mirror', 'api', 'key'],
+  },
   {
     id: 'search-provider',
     titleKey: 'config.search_provider_set.title',
diff --git a/webui/src/test/mocks/api.ts b/webui/src/test/mocks/api.ts
index a3f4763d..7840eb54 100644
--- a/webui/src/test/mocks/api.ts
+++ b/webui/src/test/mocks/api.ts
@@ -151,6 +151,11 @@ export const mockConfig = {
     username: '',
     password: '',
   },
+  network: {
+    tmdb_base_url: 'https://api.themoviedb.org',
+    tmdb_api_key: '',
+    bgm_base_url: 'https://api.bgm.tv',
+  },
   notification: {
     enable: false,
     type: 'telegram',
diff --git a/webui/types/config.ts b/webui/types/config.ts
index e1ff31d9..7f6ebcc6 100644
--- a/webui/types/config.ts
+++ b/webui/types/config.ts
@@ -72,6 +72,13 @@ export interface Proxy {
   username: string;
   password: string;
 }
+/** 外部数据源地址与凭据（TMDB / bgm.tv）：镜像与自配 key */
+export interface Network {
+  tmdb_base_url: string;
+  /** 留空回退到内置共享 key */
+  tmdb_api_key: string;
+  bgm_base_url: string;
+}
 /** Notification provider configuration */
 export interface NotificationProviderConfig {
   type: TupleToUnion<NotificationType>;
@@ -157,6 +164,7 @@ export interface Config {
   bangumi_manage: BangumiManage;
   log: Log;
   proxy: Proxy;
+  network: Network;
   notification: Notification;
   llm: LLM;
   /** @deprecated 已被 llm 段取代 */
@@ -203,6 +211,12 @@ export const initConfig: Config = {
     username: '',
     password: '',
   },
+  network: {
+    // 与 backend/src/module/models/config.py 的 Network 默认值保持一致
+    tmdb_base_url: 'https://api.themoviedb.org',
+    tmdb_api_key: '',
+    bgm_base_url: 'https://api.bgm.tv',
+  },
   notification: {
     enable: false,
     providers: [],
diff --git a/webui/types/dts/components.d.ts b/webui/types/dts/components.d.ts
index c814b169..84581e3c 100644
--- a/webui/types/dts/components.d.ts
+++ b/webui/types/dts/components.d.ts
@@ -67,6 +67,7 @@ declare module '@vue/runtime-core' {
     ConfigDownload: typeof import('./../../src/components/setting/config-download.vue')['default']
     ConfigLlm: typeof import('./../../src/components/setting/config-llm.vue')['default']
     ConfigManage: typeof import('./../../src/components/setting/config-manage.vue')['default']
+    ConfigNetwork: typeof import('./../../src/components/setting/config-network.vue')['default']
     ConfigNormal: typeof import('./../../src/components/setting/config-normal.vue')['default']
     ConfigNotification: typeof import('./../../src/components/setting/config-notification.vue')['default']
     ConfigParser: typeof import('./../../src/components/setting/config-parser.vue')['default']