feat: Major documentation reorganization and unified Box design updates

## Documentation & Organization
- Moved copilot_issues.txt → 00_MASTER_ROADMAP.md (phases folder)
- Created Phase 9.79b.1 & 9.79b.2 plans for unified Box implementation
- Updated unified-box-design-deep-analysis.md with ChatGPT5 insights
- Added P2P documentation and examples (ping-pong, self-ping)

## Code Updates
- P2PBox: Reverted to original error state for demonstration
- VM: Enhanced BoxCall dispatch for unified approach
- Updated box factory, interpreter calls, and transport layer

## Cleanup & Privacy
- Removed private/ and private_test/ from git tracking
- Added private folders to .gitignore for security
- Cleaned root directory: moved backups, removed temp files
- Moved consultation files to docs/archive/consultations/

## Other Improvements
- Added object literal syntax improvement idea
- Updated CLAUDE.md with master roadmap reference
- Updated CURRENT_TASK.md with latest progress

🤖 Generated with [Claude Code](https://claude.ai/code)

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

examples/p2p_ping_pong.nyash

@@ -0,0 +1,44 @@
+// 📡 P2P Two-Node Ping-Pong (InProcess)
+// Uses MethodBox handlers to wire reply path.
+
+print("🚀 P2P Two-Node Ping-Pong Start")
+
+// Nodes
+alice = new P2PBox("alice", "inprocess")
+bob   = new P2PBox("bob",   "inprocess")
+
+// Service box to hold node reference and implement handlers
+box PingService {
+    init { node, name }
+
+    onPing(intent, sender) {
+        print("[" + me.name + "] recv " + intent.getName() + " from " + sender)
+        // reply pong back
+        reply = new IntentBox("pong", "{}")
+        me.node.send(sender, reply)
+    }
+
+    onPong(intent, sender) {
+        print("[" + me.name + "] recv " + intent.getName() + " from " + sender)
+    }
+}
+
+// Wire handlers
+svcBob = new PingService()
+svcBob.node = bob
+svcBob.name = "bob"
+bob.on("ping", new MethodBox(svcBob, "onPing"))
+
+svcAlice = new PingService()
+svcAlice.node = alice
+svcAlice.name = "alice"
+alice.on("pong", new MethodBox(svcAlice, "onPong"))
+
+// Kick ping
+alice.send("bob", new IntentBox("ping", "{}"))
+
+// Show traces for determinism
+print("alice.last=" + alice.getLastIntentName())
+print("bob.last=" + bob.getLastIntentName())
+
+print("✅ P2P Two-Node Ping-Pong Done")

examples/p2p_self_ping.nyash

@@ -0,0 +1,26 @@
+// 📡 P2P Self Ping Smoke
+// Purpose: Minimal, deterministic P2PBox demo without external timing.
+// Shows send(to=self) loopback traces and universal methods.
+
+print("🚀 P2P Self Ping Smoke Start")
+
+// Create node 'alice' on inprocess transport
+alice = new P2PBox("alice", "inprocess")
+
+// Show basic info
+print("node=" + alice.getNodeId() + ", transport=" + alice.getTransportType())
+
+// Create an IntentBox and send to self
+msg = new IntentBox("ping", "{}")
+res = alice.send("alice", msg)
+print("send result=" + res.toString())
+
+// Read back last received traces (populated for self-loop)
+print("last.from=" + alice.getLastFrom())
+print("last.intent=" + alice.getLastIntentName())
+
+// Show debug helpers
+print("nodes=" + alice.debugNodes())
+print("bus=" + alice.debugBusId())
+
+print("✅ P2P Self Ping Smoke Done")