Verify Project

Run the core verification suite with live progress reporting.

Progress Tracking

Use TodoWrite to create and update a todo list so the user can see progress:

- Typecheck (yarn typecheck)
- Lint (yarn lint)
- Prettier (yarn prettier)
- Build (yarn build)

Mark each todo as in_progress before running, and completed or note failure immediately after.

Steps

Phase 1 (parallel)

Run these three checks in parallel (they are independent). Mark all three as in_progress, then run the Bash commands in a single message:

• yarn typecheck
• yarn lint
• yarn prettier (always auto-format, NOT prettier:check)

After each completes, immediately mark its todo as completed (or note failure). Output a one-line status for each (e.g., "Typecheck: PASS", "Lint: FAIL - 3 errors").

Phase 2 (after Phase 1)

Mark Build as in_progress, then run:

• yarn build

Mark completed and output status.

Auto-Fix Behavior

• Prettier: Always auto-fixed (Phase 1 runs yarn prettier, not prettier:check).
• Lint: If lint fails, ask the user: "Lint found N issues. Want me to run yarn lint --fix to auto-fix?" If yes, run yarn lint --fix, then re-run yarn lint to check for remaining issues.
• Typecheck/Build: Cannot be auto-fixed. Report errors and suggest fixes.

After Auto-Fix

If lint auto-fix was applied, re-run the full verification suite to confirm everything passes.

Final Report

After all steps, output:

## Verification Report

| Check      | Status |
|------------|--------|
| Typecheck  | PASS/FAIL |
| Lint       | PASS/FAIL |
| Prettier   | PASS (auto-formatted) |
| Build      | PASS/FAIL |

### Issues
- [List any errors with file:line references]

### Summary
- [One-line: ready to commit, or what needs fixing]