Update .gitignore and enhance depth snapshot rendering in mujoco_server.py

- Added MUJOCO_LOG.TXT to .gitignore to prevent logging files from being tracked.
- Modified the capture_depth_snapshot function to dynamically set render height and width based on the camera name, improving flexibility in depth rendering.

.gitignore

@@ -58,3 +58,4 @@ mujoco_server.py.backup
 .pid-*
 .dev-*.log
 server.log
+MUJOCO_LOG.TXT

mujoco_server.py

@@ -1934,10 +1934,17 @@ def capture_depth_snapshot(camera_name: str) -> Optional[bytes]:
     # Create a temporary renderer for depth capture
     with mujoco_lock:
         try:
+            if camera_name == "main":
+                render_height = env.height
+                render_width = env.width
+            else:
+                render_height = OVERLAY_RENDER_HEIGHT
+                render_width = OVERLAY_RENDER_WIDTH
+
             depth_renderer = mujoco.Renderer(
                 env.model,
-                height=env.height,
-                width=env.width
+                height=render_height,
+                width=render_width
             )
 
             # Enable depth rendering