feat: implement audio object definitions and refactor audio system

- Add AudioObjectDefinitions.cs with name-to-ID mappings and ambiguity detection
- Update AudioSystem.cs to support Play(uint) and deprecated Play(string) with warnings
- Rename PitchStepManager to PitchStepResolver and update all references
- Refactor generated code to use 'this.' prefix and foreach loops
- Remove TestEnum from audio enums and IDs
- Update SampleScene.unity to use new AudioSystem namespace and rain sound parameter
- Optimize binary serialization in generated audio classes

Assets/Scripts/OCES/Audio/HandWritten/AudioSystem.cs

@@ -26,6 +26,13 @@ namespace OCES.Audio
         // 公开接口
         // ─────────────────────────────────────────────
 
+        public void Play(uint audioId)
+        {
+            AudioObject obj = this.m_audioObjects.QueryById(audioId);
+            if (obj != null)
+                Play(obj);
+        }
+
         public void Play(AudioObject audioObject)
         {
             this.m_scheduler.TryPlay(audioObject);
@@ -33,14 +40,36 @@ namespace OCES.Audio
 
         public void Play(int audioId)
         {
-            AudioObject obj = this.m_audioObjects.QueryById((uint)audioId);
-            if (obj != null)
-                this.m_scheduler.TryPlay(obj);
+            Play((uint)audioId);
         }
 
+
+        [Obsolete("Use Play(uint) instead")]
         public void Play(string audioName)
         {
-            // TODO: 按文件名播放
+            if (!AudioObjectDefinitions.NameToId.TryGetValue(audioName, out uint id))
+            {
+                Debug.LogWarning($"[Audio] Name '{audioName}' not found.");
+                return;
+            }
+
+            if (AudioObjectDefinitions.AmbiguousNames.Contains(audioName))
+            {
+                Debug.LogWarning(
+                    $"[AudioSystem] Name '{audioName}' is ambiguous. Using first matched ID: {id}. " +
+                    "Use ID instead to avoid unexpected behavior."
+                );
+            }
+
+            if (AudioObjectDefinitions.SharedIdNames.Contains(audioName))
+            {
+                Debug.LogWarning(
+                    $"[AudioSystem] Name '{audioName}' is a item of a container AudioObject (ID: {id}). " +
+                    "Use ID instead to avoid unexpected behavior."
+                );
+            }
+
+            Play(id);
         }
 
         public void SetLowpass(bool enable)