Merge branch 'ia2'

Co-Authored-By: Claude Fable 5.1 <[email protected]>

# Conflicts:
#	CHANGELOG.md
#	docs/plan/00-first-version-plan.md
#	packages/agent/src/system-prompt.ts

apps/server/src/modules/sources-identity/tasks.ts

@@ -252,6 +252,7 @@ export const sourcesOutboxRoutes: Record<string, OutboxRouteFn> = {
   "feed.gap_suspected": (ev) => {
     const p = ev.payload as P;
     if (!p.siteId) return null;
+    // 站点不支持列表抓取时 snapshotSite 自己跳过(reason=unsupported)
     return { task: "snapshotSite", input: { siteId: p.siteId, kind: "backfill", maxPages: BACKFILL_MAX_PAGES } };
   },
 };