feat: integrate room framework and isolated subgame bundles

Complete room UI and protocol integration, move game definitions and resources behind bundle entries, publish authoritative version XML, and document single-game builds. Include all current resource changes and experiment artifacts.

out/single-game-bundle-probe-20260909/project/library/b5/b5475517-23b9-4873-bc1a-968d96616081.json

@@ -0,0 +1,8 @@
+{
+  "__type__": "cc.TTFFont",
+  "_name": "OpenSans-Bold",
+  "_objFlags": 0,
+  "__editorExtras__": {},
+  "_native": "OpenSans-Bold.ttf",
+  "_fontFamily": null
+}

out/single-game-bundle-probe-20260909/project/library/b5/b5b27ab1-e740-4398-b407-848fc2b2c897.json

@@ -0,0 +1,8 @@
+{
+  "__type__": "cc.ImageAsset",
+  "content": {
+    "fmt": "0",
+    "w": 0,
+    "h": 0
+  }
+}

out/single-game-bundle-probe-20260909/project/library/b5/b5b27ab1-e740-4398-b407-848fc2b2c897@6c48a.json

@@ -0,0 +1,9 @@
+{
+  "__type__": "cc.Texture2D",
+  "content": {
+    "base": "2,2,0,0,0,0",
+    "mipmaps": [
+      "b5b27ab1-e740-4398-b407-848fc2b2c897"
+    ]
+  }
+}

out/single-game-bundle-probe-20260909/project/library/b5/b5d6115f-0370-4d7c-aad3-c194cc71cf98.json

@@ -0,0 +1,32 @@
+{
+  "__type__": "cc.Material",
+  "_name": "default-spine-material",
+  "_objFlags": 0,
+  "_native": "",
+  "_effectAsset": {
+    "__uuid__": "c27215d8-6835-4b68-bfbb-bdeac6100c04",
+    "__expectedType__": "cc.EffectAsset"
+  },
+  "_techIdx": 0,
+  "_defines": [
+    {
+      "USE_TEXTURE": true,
+      "CC_USE_EMBEDDED_ALPHA": false,
+      "IS_GRAY": false
+    }
+  ],
+  "_states": [
+    {
+      "rasterizerState": {},
+      "depthStencilState": {},
+      "blendState": {
+        "targets": [
+          {}
+        ]
+      }
+    }
+  ],
+  "_props": [
+    {}
+  ]
+}