[Bug] AutoFixEngine stops responding to setAutoFixEnabled events after update to 1.3883.0

Bug Description
After auto-updating from 1.3561.0 → 1.3883.0 on 2026-04-21 16:44, AutoFixEngine stopped responding to LocalSessions.setAutoFixEnabled=true events. Evidence in ~/Library/Logs/Claude/main.log: Last [AutoFixEngine] Waking on 1.3561.0: 2026-04-21 15:19:00 (PR 4121) Update downloaded: 2026-04-21 16:44:18 (Claude 1.3883.0) Since 1.3883.0: 15+ LocalSessions.setAutoFixEnabled=true events across 3+ full app restarts (04-21 22:45, 04-23 09:51), zero [AutoFixEngine] log lines in response — no "kicking", no "Waking", no errors. LocalSessions.getPrStateForBranch / getPrChecks (CI status bar polling) still works fine — polling PR #4203 every 30s today. Only AutoFixEngine's subscription is dead. gh is healthy, auth is fine, the Homebrew ENOENT errors during 04-21 20:50–04-23 13:01 are unrelated (transient brew upgrade window; feature was already broken before that). Conclusion: regression in 1.3883.0 breaks the event path from LocalSessions.setAutoFixEnabled to AutoFixEngine. Version is still latest as of 2026-04-24 13:51 update check.

Environment Info

• Platform: darwin
• Terminal: iTerm.app
• Version: 2.1.119
• Feedback ID: 578fe50e-e294-411f-b7ad-1f2b241db46a

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/pete/.local/share/claude/versions/2.1.119 (expected in multi-process scenarios)\n    at mH6 (/$bunfs/root/src/entrypoints/cli.js:2736:2177)\n    at E$8 (/$bunfs/root/src/entrypoints/cli.js:2736:1257)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T20:22:35.931Z"},{"error":"Error: Plugin MCP server error - mcp-config-invalid: MCP server github invalid: Missing environment variables: GITHUB_PERSONAL_ACCESS_TOKEN\n    at TWH (/$bunfs/root/src/entrypoints/cli.js:2736:30496)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-04-24T20:22:35.965Z"},{"error":"Error: Tool TodoWrite not found\n    at Uj7 (/$bunfs/root/src/entrypoints/cli.js:3077:31268)\n    at kz (/$bunfs/root/src/entrypoints/cli.js:484:21134)\n    at P1 (/$bunfs/root/src/entrypoints/cli.js:484:39900)\n    at M9H (/$bunfs/root/src/entrypoints/cli.js:484:50713)\n    at rZH (/$bunfs/root/src/entrypoints/cli.js:484:87780)\n    at RD6 (/$bunfs/root/src/entrypoints/cli.js:484:86738)\n    at iZH (/$bunfs/root/src/entrypoints/cli.js:484:86558)\n    at jM_ (/$bunfs/root/src/entrypoints/cli.js:484:82889)\n    at aH (/$bunfs/root/src/entrypoints/cli.js:484:6552)\n    at LH (/$bunfs/root/src/entrypoints/cli.js:484:5006)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:18714:11056)","timestamp":"2026-04-24T20:22:36.891Z"},{"error":"Error: Tool TodoWrite not found\n    at Uj7 (/$bunfs/root/src/entrypoints/cli.js:3077:31268)\n    at kz (/$bunfs/root/src/entrypoints/cli.js:484:21134)\n    at P1 (/$bunfs/root/src/entrypoints/cli.js:484:39900)\n    at M9H (/$bunfs/root/src/entrypoints/cli.js:484:50713)\n    at rZH (/$bunfs/root/src/entrypoints/cli.js:484:87780)\n    at RD6 (/$bunfs/root/src/entrypoints/cli.js:484:86738)\n    at iZH (/$bunfs/root/src/entrypoints/cli.js:484:86558)\n    at jM_ (/$bunfs/root/src/entrypoints/cli.js:484:82889)\n    at aH (/$bunfs/root/src/entrypoints/cli.js:484:6552)\n    at LH (/$bunfs/root/src/entrypoints/cli.js:484:5006)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:18714:11056)","timestamp":"2026-04-24T20:22:36.892Z"},{"error":"Error: Tool TodoWrite not found\n    at Uj7 (/$bunfs/root/src/entrypoints/cli.js:3077:31268)\n    at kz (/$bunfs/root/src/entrypoints/cli.js:484:21134)\n    at P1 (/$bunfs/root/src/entrypoints/cli.js:484:39900)\n    at M9H (/$bunfs/root/src/entrypoints/cli.js:484:50713)\n    at rZH (/$bunfs/root/src/entrypoints/cli.js:484:87780)\n    at RD6 (/$bunfs/root/src/entrypoints/cli.js:484:86738)\n    at iZH (/$bunfs/root/src/entrypoints/cli.js:484:86558)\n    at jM_ (/$bunfs/root/src/entrypoints/cli.js:484:82889)\n    at aH (/$bunfs/root/src/entrypoints/cli.js:484:6552)\n    at LH (/$bunfs/root/src/entrypoints/cli.js:484:5006)\n    at async <anonymous> (/$bunfs/root/src/entrypoints/cli.js:18714:11056)","timestamp":"2026-04-24T20:22:36.921Z"},{"error":"Error: Tool TodoWrite not found\n    at Uj7 (/$bunfs/root/src/entrypoints/cli.js:3077:31268)\n    at kz (/$bunfs/root/src/entrypoints/cli.js:484:21134)\n    at P1 (/$bunfs/root/src/entrypoints/cli.js:484:39900)\n    at M9H (/$bunfs/root/src/entrypoints/cli.js:484:50713)\n    at rZH (/$bunfs/root/src/entrypoints/cli.js:484:87780)\n    at RD6 (/$bunfs/root/src/entrypoints/cli.js:484:86738)\n    at iZH (/$bunfs/root/src/entrypoints/cli.js:484:86558)\n    at jM_ (/$bunfs/root/src/entrypoints/cli.js:484:82889)\n    at aH (/$bunfs/root/src/entrypoints/cli.js:484:6552)\n    at LH (/$bunfs/root/src/entrypoints/cli.js:484:5006)\n…

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