add review submission flow (phase 3)

- Add ReviewNotifier for verification emails
- Add review token generation and verification
- Add request_review_verification function
- Update reviews_section component with write-a-review form
- Create ReviewForm LiveView for submitting/editing reviews
- Add /reviews/new and /reviews/:id/edit routes
- Add review buttons to order detail page
- Update block_types to load real review data
- Tests for token and verification functions

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/plans/reviews-system.md

@@ -1,6 +1,6 @@
 # Product reviews system
 
-Status: In Progress (Phase 1-2 complete)
+Status: In Progress (Phase 1-3 complete)
 
 ## Overview
 
@@ -428,22 +428,22 @@ Only include if product has approved reviews.
    - Purchase verification
    - Image preloading helpers
 
-### Phase 3: Review submission (~4h)
+### Phase 3: Review submission (~4h) ✓
 
-5. **Product page review section** (1.5h)
+5. **Product page review section** (1.5h) ✓
    - Email entry form (if no session)
    - Review form (if session + can review)
    - Edit existing review
    - Verification email sending
 
-6. **Review form LiveView** (2h)
+6. **Review form LiveView** (2h) ✓
    - Token verification
    - Form with star rating
-   - Photo upload with LiveView uploads (max 3)
+   - Photo upload with LiveView uploads (max 3) - deferred to Phase 4
    - Create/update handling
    - Photo processing via existing pipeline
 
-7. **Orders page integration** (0.5h)
+7. **Orders page integration** (0.5h) ✓
    - "Write a review" / "Edit review" buttons
    - Link to review form