chore: initial project setup with agent guide

.planning/HANDOFF.json

@@ -0,0 +1,25 @@
+{
+  "version": "1.0",
+  "timestamp": "2026-03-29T19:40:00Z",
+  "phase": "00-setup",
+  "phase_name": "Project Initialization",
+  "phase_dir": ".planning",
+  "plan": 0,
+  "task": 0,
+  "total_tasks": 0,
+  "status": "paused",
+  "completed_tasks": [],
+  "remaining_tasks": [],
+  "blockers": [],
+  "human_actions_pending": [],
+  "decisions": [
+    {
+      "decision": "Master-Satellite Deployment",
+      "rationale": "Ensures downstream repos remain 100% Zero-Pollution by distributing flattened skills natively via Git Push",
+      "phase": "0"
+    }
+  ],
+  "uncommitted_files": [],
+  "next_action": "Run /gsd-plan-phase 1 to begin roadmap construction",
+  "context_notes": "Zero-pollution foundation is perfectly solid. Awaiting Phase 1 initialization."
+}