docs(35-02): complete image lazy loading and skeleton plan

- SUMMARY.md created for 35-02 (FIX-03)
- STATE.md advanced to plan 2 of 3 complete, added 35-02 decisions
- ROADMAP.md updated (2 of 3 summaries)
- REQUIREMENTS.md marked FIX-03 complete

.planning/REQUIREMENTS.md

@@ -10,7 +10,7 @@
 
 - [x] **FIX-01**: User clicking "Add Candidate" on a thread page opens the add-candidate modal (not the wrong modal)
 - [x] **FIX-02**: Item images display correctly on collection overview cards (no broken/missing images)
-- [ ] **FIX-03**: Catalog and collection images load without noticeable delay (slow image loading resolved)
+- [x] **FIX-03**: Catalog and collection images load without noticeable delay (slow image loading resolved)
 - [x] **FIX-04**: Clicking the sign-in button on an auth prompt redirects the user directly to the Logto login page
 - [ ] **FIX-05**: All clickable and interactive elements show a pointer cursor on hover throughout the app
 
@@ -69,7 +69,7 @@
 |-------------|-------|--------|
 | FIX-01 | Phase 35 | Complete |
 | FIX-02 | Phase 35 | Complete |
-| FIX-03 | Phase 35 | Pending |
+| FIX-03 | Phase 35 | Complete |
 | FIX-04 | Phase 35 | Complete |
 | FIX-05 | Phase 35 | Pending |
 | ROLE-01 | Phase 36 | Pending |