feat: integrate fork work onto upstream main (squashed)

Squash-merge of feat/autofix-pr-test (69 commits) onto upstream/main
with -X ours strategy (upstream as authoritative for content conflicts).

Key features brought in from fork:
- LocalMemoryRecall + VaultHttpFetch tools (end-to-end wired)
- /local-memory, /local-vault, /memory-stores, /skill-store interactive panels
- /agents-platform, /schedule, /vault command scaffolding
- /login: switch / replace / remove of workspace API key
- statusline refactor (built-in status row, /statusline as info command)
- autofix-pr command + workflow

Conflict resolutions (upstream-wins):
- 10 .js command stubs kept from upstream (alongside fork's .ts implementations)
- src/components/BuiltinStatusLine.tsx accepted upstream's deletion
  (fork's wire-up references in StatusLine.tsx will be cleaned up next)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/integration/autonomy-lifecycle-user-flow.test.ts

@@ -1,3 +1,8 @@
+// NOTE: isolation flake, not pollution. The subprocess Bun.spawn'd in
+// runAutonomyCli does not inherit the test runner's tsconfig path-alias
+// resolution, so it reports `Cannot find module 'src/bootstrap/state.js'
+// from src/utils/startupProfiler.ts` even when this file is run alone.
+// Out of scope for the test-flake-fix pass; needs subprocess-launcher rework.
 import { afterEach, beforeEach, describe, expect, test } from 'bun:test'
 import { existsSync, mkdtempSync, rmSync } from 'node:fs'
 import { tmpdir } from 'node:os'