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+---
+phase: 09-faster-write-back
+plan: "02"
+subsystem: api-routes-startup
+tags: [outbox, event-driven, drain-signal, caldav, startup-wiring]
+dependency_graph:
+  requires:
+    - signalOutboxDrain (apps/api/src/lib/outboxTrigger.ts — Plan 01)
+    - initOutboxTrigger (apps/api/src/broker/outboxWorker.ts — Plan 01)
+  provides:
+    - Four post-commit signalOutboxDrain() publish sites in events.ts (create, edit-as-move, same-cal update, delete)
+    - initOutboxTrigger() wired at startup in index.ts under isMainModule()
+  affects:
+    - apps/api/src/routes/events.ts
+    - apps/api/src/index.ts
+tech_stack:
+  added: []
+  patterns:
+    - Fire-and-forget in-process EventEmitter signal after each outbox enqueue commit (D-04)
+    - isMainModule() guard for startup-only listener registration (Pitfall 4)
+    - edit-as-move signal fires after await db.transaction() resolves, not inside callback (D-03)
+key_files:
+  created: []
+  modified:
+    - apps/api/src/routes/events.ts
+    - apps/api/src/index.ts
+decisions:
+  - "D-03-signal-placement: signalOutboxDrain() for edit-as-move placed AFTER await db.transaction() resolves (line after the statement), never inside the async callback — guarantees DELETE+CREATE rows are durably committed before any drain observes them (SC-3 / Pitfall 1)"
+  - "D-04-fire-and-forget: signalOutboxDrain() is never awaited — synchronous emit to in-process EventEmitter, cannot block the 202 response (SC-2 / T-09-07)"
+  - "Pitfall4-guard: initOutboxTrigger() called only inside isMainModule() block — tests importing app never register the drain listener, no open handles in test process (T-09-06)"
+metrics:
+  duration_seconds: 240
+  completed_date: "2026-06-12"
+  tasks_completed: 2
+  files_changed: 2
+---
+
+# Phase 09 Plan 02: Enqueue-Site Signal Wiring Summary
+
+**One-liner:** Four fire-and-forget `signalOutboxDrain()` publish sites added to events.ts (create, edit-as-move-after-transaction, same-cal update, delete) and `initOutboxTrigger()` wired at startup in index.ts under `isMainModule()`, connecting the Plan 01 EventEmitter mechanism to live writes and eliminating the up-to-15s polling delay.
+
+## What Was Built
+
+### Task 1: `apps/api/src/routes/events.ts` — Four publish sites
+
+Import added: `import { signalOutboxDrain } from '../lib/outboxTrigger.js';`
+
+Four `signalOutboxDrain()` calls inserted, each fire-and-forget (never awaited):
+
+| Site | Route | Placement |
+|------|-------|-----------|
+| 1 | POST /create | After `await db.insert(calendarOutbox).values({...})`, before `return c.json({ uid }, 202)` |
+| 2 | PATCH /:uid/edit (edit-as-move) | After `await db.transaction(async (tx) => {...})` RESOLVES, before `return c.json({ uid: newUid }, 202)` — critical: NOT inside the callback |
+| 3 | PATCH /:uid/edit (same-cal update) | After `await db.insert(calendarOutbox).values({ operation: 'update', ... })`, before `return c.json({ uid }, 202)` |
+| 4 | DELETE /:uid | After `await db.insert(calendarOutbox).values({ operation: 'delete', ... })`, before `return c.json({ uid }, 202)` |
+
+No route status codes, response bodies, validation, or ownership checks were modified. No inline CalDAV calls added. No signal inside the `db.transaction` callback. No signal inside any `catch` block.
+
+### Task 2: `apps/api/src/index.ts` — Startup wiring
+
+- Import extended: `import { startOutboxWorker, initOutboxTrigger } from './broker/outboxWorker.js';`
+- `initOutboxTrigger();` added immediately after `startOutboxWorker();` inside the `if (isMainModule())` block (line 139), with comment `// subscribe drain signal listener (D-01)`
+- `isMainModule()`, `startBrokerPoller`, `startReminderScheduler`, and `serve(...)` unchanged
+
+## Deviations from Plan
+
+None — plan executed exactly as written.
+
+## Verification Evidence
+
+```
+grep -c "signalOutboxDrain()" apps/api/src/routes/events.ts → 4
+grep -n "await signalOutboxDrain" apps/api/src/routes/events.ts → (none)
+initOutboxTrigger() at line 139 — inside isMainModule() guard
+
+npx tsc --noEmit → (no output, clean)
+
+npx vitest run tests/routes/events.test.ts tests/broker/outboxWorker.test.ts
+  Test Files  2 passed (2)
+       Tests  53 passed (53)
+
+Full suite: 240 passed, 1 failed (known pre-existing flaky timeout in lists.test.ts:
+  "toggling isShared false→true re-populates list_shares for other members" — 5028ms,
+  exceeds 5000ms global testTimeout; passes with --testTimeout=30000; unrelated to this plan)
+```
+
+## Known Stubs
+
+None.
+
+## Threat Flags
+
+None — this plan introduces no new network endpoints, auth paths, file access patterns, or schema changes. T-09-05 (edit-as-move signal placement) and T-09-06 (listener registration gating) are both verified: signal is after the transaction resolves, and `initOutboxTrigger` is inside `isMainModule()`.
+
+## Self-Check: PASSED
+
+- `apps/api/src/routes/events.ts` — FOUND; 4 signalOutboxDrain() calls verified
+- `apps/api/src/index.ts` — FOUND; initOutboxTrigger() inside isMainModule() at line 139 verified
+- Task 1 commit `30eff3d` — FOUND
+- Task 2 commit `0ebdf48` — FOUND