Session Handoff

## Session Summary

**Task**: [What was being worked on]
**Branch**: [Current git branch]
**Status**: [In progress / Blocked / Ready for review]
**Started**: [When work began]

## Completed Work

1. [Task 1] — [files changed, what was done]
2. [Task 2] — [files changed, what was done]

### Key Decisions Made
- Chose X over Y because [reason]
- Used pattern Z from [existing file] for consistency

## Remaining Work

1. [ ] [Next task] — [specific files, what to do]
2. [ ] [Following task] — [dependencies, approach]

### Blockers
- [Any blocking issues with context]

## Key Files
- `src/auth/oauth.ts` — Main implementation file (modified)
- `src/auth/types.ts` — Type definitions (new)
- `tests/auth/oauth.test.ts` — Tests (partially written)

## Patterns to Follow
- Auth middleware pattern from `src/middleware/jwt.ts`
- Error handling style from `src/errors/`

## Gotchas Discovered
- The `UserService` caches aggressively — clear cache after auth changes
- Test DB needs `--runInBand` flag to avoid connection pool exhaustion

## Commands
- Build: `npm run build`
- Test: `npm test -- --runInBand`
- Verify: `npm run typecheck`

## How to Continue

1. Read this handoff document
2. Check `git status` and `git log -5 --oneline` for current state
3. Start with [specific next task]
4. Reference [specific file] for the pattern to follow