Fix hash comparison in get_tool_publish_state

Use raw config for hash comparison instead of to_dict(), which was
adding fields like 'arguments: []' that weren't in the original config.
This caused tools to show as "modified" when they weren't.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/cmdforge/gui/pages/tools_page.py

@@ -118,13 +118,8 @@ def get_tool_publish_state(tool_name: str) -> Tuple[str, Optional[str]]:
         if not registry_hash:
             return ("local", None)
 
-        # Compute hash the same way as publish: load Tool object and use to_dict()
-        # This ensures we compare the same normalized representation
-        tool = load_tool(tool_name)
-        if tool:
-            current_hash = compute_config_hash(tool.to_dict())
-        else:
-            # Fallback to raw config if Tool can't be loaded
+        # Compute hash from raw config, same as server does during publish
+        # Don't use to_dict() as it may add/remove fields (e.g., empty arguments: [])
         current_hash = compute_config_hash(config)
 
         if current_hash != registry_hash: