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# Phase 0: Quick Start Guide
## What Is This?
Phase 0 is a foundation stabilization sprint to fix critical infrastructure issues discovered during TASK-004B. Without these fixes, every React migration task will waste 10+ hours fighting the same problems.
**Total estimated time:** 10-16 hours (1.5-2 days)
---
## The 3-Minute Summary
### The Problems
1. **Webpack caching is so aggressive** that code changes don't load, even after restarts
2. **EventDispatcher doesn't work with React** - events emit but React never receives them
3. **No way to verify** if your fixes actually work
### The Solutions
1. **TASK-009:** Nuke caches, disable persistent caching in dev, add build timestamp canary
2. **TASK-010:** Verify the `useEventListener` hook works, fix ComponentsPanel
3. **TASK-011:** Document the pattern so this never happens again
4. **TASK-012:** Create health check script to catch regressions
---
## Execution Order
```
┌─────────────────────────────────────────────────────────────┐
│ TASK-009: Webpack Cache Elimination │
│ ───────────────────────────────────── │
│ MUST BE DONE FIRST - Can't debug anything until caching │
│ is solved. Expected time: 2-4 hours │
└─────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────┐
│ TASK-010: EventListener Verification │
│ ───────────────────────────────────── │
│ Test and verify the React event pattern works. │
│ Fix ComponentsPanel. Expected time: 4-6 hours │
└─────────────────────────────────────────────────────────────┘
┌─────────────┴─────────────┐
▼ ▼
┌────────────────────────┐ ┌────────────────────────────────┐
│ TASK-011: Pattern │ │ TASK-012: Health Check │
│ Guide │ │ Script │
│ ────────────────── │ │ ───────────────────── │
│ Document everything │ │ Automated validation │
│ 2-3 hours │ │ 2-3 hours │
└────────────────────────┘ └────────────────────────────────┘
```
---
## Starting TASK-009
### Prerequisites
- VSCode/IDE open to the project
- Terminal ready
- Project runs normally (`npm run dev` works)
### First Steps
1. **Read TASK-009/README.md** thoroughly
2. **Find all cache locations** (grep commands in the doc)
3. **Create clean script** in package.json
4. **Modify webpack config** to disable filesystem cache in dev
5. **Add build canary** (timestamp logging)
6. **Verify 3 times** that changes load reliably
### Definition of Done
You can edit a file, save it, and see the change in the running app within 5 seconds. Three times in a row.
---
## Key Files
| File | Purpose |
| ---------------------------------- | ------------------------------- |
| `phase-0-foundation/README.md` | Master plan |
| `TASK-009-*/README.md` | Webpack cache elimination |
| `TASK-009-*/CHECKLIST.md` | Verification checklist |
| `TASK-010-*/README.md` | EventListener verification |
| `TASK-010-*/EventListenerTest.tsx` | Test component (copy to app) |
| `TASK-011-*/README.md` | Pattern documentation task |
| `TASK-011-*/GOLDEN-PATTERN.md` | The canonical pattern reference |
| `TASK-012-*/README.md` | Health check script task |
| `CLINERULES-ADDITIONS.md` | Rules to add to .clinerules |
---
## Success Criteria
Phase 0 is complete when:
- [ ] `npm run clean:all` works
- [ ] Code changes load reliably (verified 3x)
- [ ] Build timestamp visible in console
- [ ] `useEventListener` verified working
- [ ] ComponentsPanel rename updates UI immediately
- [ ] Pattern documented in LEARNINGS.md
- [ ] .clinerules updated
- [ ] Health check script runs
---
## After Phase 0
Return to Phase 2 work:
- TASK-004B (ComponentsPanel migration) becomes UNBLOCKED
- Future React migrations will follow the documented pattern
- Less token waste, more progress