fix(subscription): apply rules on RSS path, dedup movies via library, MoviePilot-style default excludes

- runOne (RSS) now applies matchesSubscriptionRules so ExcludeWords/Resolution/Quality/Effects/ReleaseGroups take effect (previously only the Filter regex ran, so editing 排除 had no effect on RSS subscriptions)
- movie candidate selection now consults library availability: non-wash subscriptions skip titles already in the library, stopping repeated downloads of 10bit/Dolby releases (aligns with MoviePilot 'download once = satisfied')
- add MoviePilot-style default exclude list (cam/ts/枪版/trailer/sample...) merged with user excludes; latin tokens matched on word boundaries to avoid substring false positives
- frontend: send rule fields as raw strings on edit so 排除词 can be cleared/changed (was dropped by '|| undefined')

Co-Authored-By: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

web/src/pages/SubscriptionsPage.tsx

@@ -50,10 +50,11 @@ export function SubscriptionsPage() {
         search_mode: searchMode,
         imdb_id: imdbID || undefined,
         resolution,
-        quality: quality || undefined,
-        effects: effects || undefined,
-        release_groups: releaseGroups || undefined,
-        exclude_words: excludeWords || undefined,
+        // 规则类字段发送原始字符串（含空串），以便编辑时可清空/修改；create 存空串无害，update 才能真正生效。
+        quality,
+        effects,
+        release_groups: releaseGroups,
+        exclude_words: excludeWords,
         wash_enabled: washEnabled,
         wash_priority: washPriority,
         priority: 50,