Files
Jiang Bohan 72a7ca7199 feat(daemon): extend GC to chat / autopilot / quick-create tasks
Before this change the daemon's GC was strictly issue-centric: only tasks
with a non-empty issue_id ever wrote .gc_meta.json, and shouldCleanTaskDir
called only the issue gc-check endpoint. Chat / autopilot run / quick-create
tasks fell through to the GCOrphanTTL mtime path, which mis-killed active
chat sessions while leaving deleted ones around far longer than necessary.

Schema:
- GCMeta gains a Kind discriminator and per-kind ID fields
  (ChatSessionID / AutopilotRunID / TaskID). WriteGCMeta now takes a
  GCMeta struct so the call site classifies the task explicitly.
- ReadGCMeta defaults empty Kind to GCKindIssue, so legacy on-disk meta
  files keep flowing through the issue path with no migration required.

Server endpoints (siblings of /api/daemon/issues/{id}/gc-check, all behind
requireDaemonWorkspaceAccess for the same anti-enumeration shape):
- GET /api/daemon/chat-sessions/{id}/gc-check  -> {status, updated_at}
- GET /api/daemon/autopilot-runs/{id}/gc-check -> {status, completed_at}
- GET /api/daemon/tasks/{id}/gc-check          -> {status, completed_at}

shouldCleanTaskDir dispatches on Kind:
- chat: active is hard-skipped (no mtime fallback) so idle sessions are
  never reclaimed; archived + GCTTL cleans; 404 falls back to mtime to
  stay safe for cross-workspace tokens.
- autopilot_run: terminal (completed/failed/skipped/issue_created) +
  GCTTL cleans; running/pending skips. Uses run.completed_at as the TTL
  anchor since autopilot_run has no updated_at column.
- quick_create: terminal task status cleans immediately (workdir is not
  reused by the linked issue task, which has its own envRoot); running
  skips.

Also drops the "skipping .gc_meta.json: issue_id is empty" warn — with
the new kind dispatch, chat/autopilot/quick-create tasks now write a
proper meta file instead of triggering this log.

Refs: GC follow-up to PR #2077 (symptom fix) and #2115 (chat hard delete).
Co-authored-by: multica-agent <github@multica.ai>
2026-05-08 15:35:38 +08:00
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