Add hot-update boot pipeline, UI bundles/atlas assets, and design docs.

Ignore AIClient/Library and AIClient/HybridCLRData permanently; include HybridCLR/YooAsset project setup and UI tooling.

Co-authored-by: Cursor <cursoragent@cursor.com>

Tools/ws_probe.py

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+import asyncio
+import json
+import sys
+
+async def main() -> int:
+    try:
+        import websockets
+    except ImportError:
+        print("NO_WEBSOCKETS")
+        return 2
+
+    url = "wss://game.xworld.ren/ws?pid=m2_probe"
+    print("connecting", url)
+    try:
+        async with websockets.connect(url, open_timeout=10, close_timeout=5) as ws:
+            print("OPEN ok")
+            try:
+                msg = await asyncio.wait_for(ws.recv(), timeout=3)
+                print("recv", type(msg).__name__, repr(msg)[:800])
+            except asyncio.TimeoutError:
+                print("recv_timeout (no hello)")
+
+            hello = {"op": "hello", "proto": 1, "app": "1.0.0", "pid": "m2_probe"}
+            await ws.send(json.dumps(hello, ensure_ascii=False))
+            print("sent", hello)
+            try:
+                msg = await asyncio.wait_for(ws.recv(), timeout=5)
+                print("after_hello", type(msg).__name__, repr(msg)[:800])
+            except asyncio.TimeoutError:
+                print("after_hello_timeout")
+            return 0
+    except Exception as e:
+        print("ERR", type(e).__name__, e)
+        return 1
+
+
+if __name__ == "__main__":
+    raise SystemExit(asyncio.run(main()))