plan: v4 implementation plan + discovery findings

PROJ-035 Live Status v4 - implementation plan created by planner subagent.

Discovery findings documented in discoveries/README.md covering:
- JSONL transcript format (confirmed v3 schema)
- Session keying patterns (subagent spawnedBy linking)
- Hook events available (gateway:startup confirmed)
- Mattermost API (no edit time limit)
- Current v1 failure modes

Audit: 32/32 PASS, Simulation: READY

STATE.json

@@ -0,0 +1,30 @@
+{
+  "projectId": "PROJ-035",
+  "state": "PENDING_APPROVAL",
+  "planVersion": "v5-beta",
+  "phase": 0,
+  "totalPhases": 6,
+  "lastAgent": "planner:proj035:subagent:e8bb592a",
+  "lastUpdated": "2026-03-07T16:00:00Z",
+  "planPostedTo": "gitea",
+  "giteaRepo": "ROOH/MATTERMOST_OPENCLAW_LIVESTATUS",
+  "giteaIssueNumber": 3,
+  "discoveryIssues": [],
+  "completedDiscoveries": [],
+  "synthesisComplete": true,
+  "synthesisDoc": "discoveries/README.md",
+  "auditComplete": true,
+  "auditScore": "32/32",
+  "auditFindings": ["WARNING: gateway restart needed to activate hook — coordinate with Rooh"],
+  "simulationComplete": true,
+  "simulationVerdict": "READY",
+  "hasOpenQuestions": true,
+  "questionsAnswered": false,
+  "approvedBy": null,
+  "approvedAt": null,
+  "completedPhases": [],
+  "errors": [],
+  "maxConcurrentSubagents": 2,
+  "activeSubagents": 0,
+  "queuedTasks": []
+}