docs: define milestone v1.4 requirements

11 requirements across 4 categories:
- VU Meters (3): Interval/animation cleanup
- Chat Window (3): WebSocket listener and state cleanup
- Session Screen (3): useEffect and polling cleanup
- Verification (2): Stability and memory monitoring

.planning/REQUIREMENTS.md

@@ -1,51 +1,65 @@
-# Requirements: Session Settings Tests
+# Requirements: Memory Leak Prevention
 
-**Defined:** 2026-02-07
-**Core Value:** Enable confident changes to Session Settings modal through comprehensive test coverage
+**Defined:** 2026-02-08
+**Core Value:** Fix memory leaks to ensure stable session experience without freezes or crashes
 
-## v1.3 Requirements
+## v1.4 Requirements
 
-Requirements for Session Settings test coverage. Critical paths only.
+Requirements for fixing memory leaks in the session screen. Focus on cleanup patterns.
 
-### Unit Tests (Jest)
+### VU Meters (VUMTR)
 
-- [x] **UNIT-01**: Modal renders correctly with currentSession props (privacy, description)
-- [x] **UNIT-02**: Save button calls onSave with correct payload (privacy number, description)
-- [x] **UNIT-03**: Loading state disables form interactions (save button, inputs)
+- [ ] **VUMTR-01**: Audit VU meter components for interval/timer cleanup on unmount
+- [ ] **VUMTR-02**: Fix any leaking setInterval or requestAnimationFrame calls
+- [ ] **VUMTR-03**: Ensure animation stops when VU meters are hidden/unmounted
 
-### Integration Tests (Playwright)
+### Chat Window (CHAT)
 
-- [x] **INT-01**: Settings button in session toolbar opens modal
-- [x] **INT-02**: Save settings makes PUT /sessions/{id} API call with correct data
-- [x] **INT-03**: Cancel closes modal without making API call
+- [ ] **CHAT-01**: Audit WebSocket listener registration and cleanup patterns
+- [ ] **CHAT-02**: Check for unbounded message list growth in Redux state
+- [ ] **CHAT-03**: Ensure proper cleanup when chat window closes
+
+### Session Screen Base (SESS)
+
+- [ ] **SESS-01**: Audit useEffect hooks for missing cleanup return functions
+- [ ] **SESS-02**: Check polling intervals for proper cleanup on component unmount
+- [ ] **SESS-03**: Audit event listener registration/removal patterns
+
+### Verification (VRFY)
+
+- [ ] **VRFY-01**: Session remains stable for 15+ minutes without freeze
+- [ ] **VRFY-02**: Memory usage doesn't grow unbounded (verify in browser dev tools)
 
 ## Out of Scope
 
 | Feature | Reason |
 |---------|--------|
-| Exhaustive state change tests | Core paths only, not every input change |
-| Privacy transform unit tests | Covered implicitly by save payload test |
-| Error handling tests | Deferred to keep scope minimal |
-| Success toast tests | Deferred to keep scope minimal |
-| Visual regression tests | Not part of this milestone |
-| Other modal tests | Only JKSessionSettingsModal |
+| Recording modal performance | Separate milestone, different component tree |
+| New features | Focus purely on fixing existing leaks |
+| Backend changes | Frontend-only fixes |
+| Major refactoring | Minimal changes to fix leaks, preserve behavior |
 
 ## Traceability
 
 | Requirement | Phase | Status |
 |-------------|-------|--------|
-| UNIT-01 | Phase 17 | Complete |
-| UNIT-02 | Phase 17 | Complete |
-| UNIT-03 | Phase 17 | Complete |
-| INT-01 | Phase 18 | Complete |
-| INT-02 | Phase 18 | Complete |
-| INT-03 | Phase 18 | Complete |
+| VUMTR-01 | TBD | Pending |
+| VUMTR-02 | TBD | Pending |
+| VUMTR-03 | TBD | Pending |
+| CHAT-01 | TBD | Pending |
+| CHAT-02 | TBD | Pending |
+| CHAT-03 | TBD | Pending |
+| SESS-01 | TBD | Pending |
+| SESS-02 | TBD | Pending |
+| SESS-03 | TBD | Pending |
+| VRFY-01 | TBD | Pending |
+| VRFY-02 | TBD | Pending |
 
 **Coverage:**
-- v1.3 requirements: 6 total
-- Mapped to phases: 6
-- Unmapped: 0 ✓
+- v1.4 requirements: 11 total
+- Mapped to phases: 0
+- Unmapped: 11
 
 ---
-*Requirements defined: 2026-02-07*
-*Last updated: 2026-02-08 after Phase 18 completion (v1.3 milestone complete)*
+*Requirements defined: 2026-02-08*
+*Last updated: 2026-02-08 after initial definition*