port: complete python ledger mapping, audio commands bridge and platform stubs

- Added Client/root (74 modules, 3350 funcs) mapped to RUN_AS_IS
- Added UserInterface/PythonNetworkStreamModule.cpp.json mapped to PORTED
- Implemented AudioCommands queue bridging MilesLib SoundManager to Godot AudioDriver
- Implemented AudioDriver node for BGM crossfading, 2D UI SFX and 3D spatial sounds
- Implemented core platform stubs in PythonApplication, GrpScreen, and PythonGraphic
- Passed all 12 port tests (port_gate macos) and python_game_render_test

audit/port-map/Client/root/emotion.py.json

@@ -0,0 +1,29 @@
+{
+  "reference": "../../Client/Eternexus/root/emotion.py",
+  "reference_sha256": "1b72d895f52c3768ba0404c13b00ab41212bb23b5cd65eb2588ceb1b2db8c88a",
+  "priority": "P3",
+  "contracts": [],
+  "functions": {
+    "__RegisterSharedEmotionAnis": {
+      "status": "RUN_AS_IS",
+      "impl": [
+        "assets/root/emotion.py:__RegisterSharedEmotionAnis"
+      ],
+      "evidence": "executed directly by embedded CPython 2.7 runtime from 40250 pack/assets"
+    },
+    "RegisterEmotionAnis": {
+      "status": "RUN_AS_IS",
+      "impl": [
+        "assets/root/emotion.py:RegisterEmotionAnis"
+      ],
+      "evidence": "executed directly by embedded CPython 2.7 runtime from 40250 pack/assets"
+    },
+    "RegisterEmotionIcons": {
+      "status": "RUN_AS_IS",
+      "impl": [
+        "assets/root/emotion.py:RegisterEmotionIcons"
+      ],
+      "evidence": "executed directly by embedded CPython 2.7 runtime from 40250 pack/assets"
+    }
+  }
+}