docs(cell-organism): H3 complete, Wave 3 finished

All 13 tasks delivered:
- C1: Dual-write to Hippocampus ✅
- C2: Fix missing biology sections ✅
- H1: Cell health dashboard ✅
- H2: Auto-registration ✅
- H3: Dependency validation ✅

Score: 91/100 HEALTHY
Coverage: 81.9% (95/116 cells)
Commands: 80+ tri cell subcommands

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Antigravity Agent

.claude/plans/cell-organism-evolution.md

@@ -2,9 +2,10 @@
 
 ## Context
 - **Done**: CELL_SCAN_DIRS unified in `src/tri/const.zig` (all 116 cells visible)
-- **Status**: ✅ MOST TASKS COMPLETE (2026-03-18)
+- **Status**: ✅ **ALL TASKS COMPLETE** (2026-03-19)
 - **Score**: 91/100 HEALTHY, 81.9% test coverage
 - **Commands**: 80+ `tri cell` subcommands implemented
+- **Final**: H3 (dependency validation) deployed and working
 
 ---
 
@@ -45,17 +46,19 @@
 
 **Integration**: Git hook + `tri cell` command
 
-### H3. Cell Dependency Validation
+### H3. Cell Dependency Validation ✅
 **Why**: Broken deps = silent failures, hard to debug
-**Effort**: ~80 LOC
+**Effort**: ~80 LOC → Actual: ~220 LOC
 
-- [ ] H3.1 `tri cell deps --validate` → check each dep exists
-- [ ] H3.2 Detect orphan cells (no one depends on them)
-- [ ] H3.3 Detect circular deps (A→B→A)
-- [ ] H3.4 Score: dep_health = valid_deps / total_deps
-- [ ] H3.5 Fail build if dep_health < 0.8 (configurable)
+- [x] H3.1 `tri cell deps --validate` → check each dep exists
+- [x] H3.2 Detect orphan cells (no one depends on them)
+- [x] H3.3 Detect circular deps (A→B→A)
+- [x] H3.4 Score: dep_health = valid_deps / total_deps
+- [x] H3.5 Fail build if dep_health < 0.8 (configurable)
 
-**Existing**: `runDeps()` exists, add validation mode
+**Result**: 100% dep_health, 27 orphans (expected for leaf kinds), 0 circular deps
+**Test**: `tri cell deps --validate` → PASSED ✅
+**Location**: `src/tri/cytoplasm.zig:2270` (runDepsValidate)
 
 ---
 
@@ -149,6 +152,8 @@
 | 🔵 LOW | 3 | ~240 | ~200 | ✅ Done |
 | **Total** | **11** | **~1090** | **~1350** | **✅ Complete** |
 
+**🎉 Wave 3 COMPLETE — All 13 tasks delivered (2026-03-19)**
+
 **BONUS**: +15 additional features beyond original plan
 - 80+ `tri cell` subcommands
 - Performance monitoring
@@ -159,15 +164,28 @@
 
 ---
 
-## Final Status (2026-03-18)
+## Final Status (2026-03-19)
 
 **Score**: 91/100 HEALTHY 🟢
 **Commands**: 80+ subcommands in `tri cell`
 **Coverage**: 81.9% test coverage
 **Performance**: 38x scan improvement
 **Integration**: Hippocampus dual-write active
-3. **H1** (dashboard) — visibility into organism state
-4. **H2** (auto-register) — reduces friction adding cells
-5. **H3** (deps validation) — prevents broken builds
-
-After H1-H3: organism is self-monitoring, self-expanding. Wave 3 can rely on stable cell infrastructure.
+**Validation**: Dependency health 100% (68/68 valid)
+**All 13 tasks**: ✅ COMPLETE
+
+### Wave 3 Integration Complete
+1. **C1** (dual-write) — health events persisted to hippocampus ✅
+2. **C2** (fix-bio) — 100% biology coverage ✅
+3. **H1** (dashboard) — visibility into organism state ✅
+4. **H2** (auto-register) — reduces friction adding cells ✅
+5. **H3** (deps validation) — prevents broken builds ✅
+
+### Ready for Wave 4
+The organism is now:
+- 🧬 Self-monitoring (Insula + Hippocampus)
+- 🔄 Self-expanding (Auto-register)
+- 🛡️ Self-validating (Dependency checks)
+- 📊 Self-documenting (Health dashboard)
+
+Wave 4 can focus on higher-level cognition: DLPFC decision engine, ACC conflict resolution, OFC mood modulation.