feat(theme): add tool_output color to themes

- Added a `tool_output` color to the `Theme` struct.
- Updated all built-in themes to include the new color.
- Modified the TUI to use the `tool_output` color for rendering tool output.

crates/owlen-mcp-server/src/main.rs

@@ -65,7 +65,7 @@ fn sanitize_path(path: &str, root: &Path) -> Result<PathBuf, JsonRpcError> {
             .map_err(|_| JsonRpcError {
                 code: -32602,
                 message: "Invalid path".to_string(),
-            })? 
+            })?
             .to_path_buf()
     } else {
         path.to_path_buf()
@@ -86,11 +86,10 @@ fn sanitize_path(path: &str, root: &Path) -> Result<PathBuf, JsonRpcError> {
 async fn resources_list(path: &str, root: &Path) -> Result<serde_json::Value, JsonRpcError> {
     let full_path = sanitize_path(path, root)?;
 
-    let entries = fs::read_dir(full_path)
-        .map_err(|e| JsonRpcError {
-            code: -32000,
-            message: format!("Failed to read directory: {}", e),
-        })?;
+    let entries = fs::read_dir(full_path).map_err(|e| JsonRpcError {
+        code: -32000,
+        message: format!("Failed to read directory: {}", e),
+    })?;
 
     let mut result = Vec::new();
     for entry in entries {
@@ -150,13 +149,19 @@ async fn main() -> anyhow::Result<()> {
 
                 match handle_request(req, &root).await {
                     Ok(result) => {
-                        let resp = Response { id: request_id, result };
+                        let resp = Response {
+                            id: request_id,
+                            result,
+                        };
                         let resp_str = serde_json::to_string(&resp)?;
                         stdout.write_all(resp_str.as_bytes()).await?;
                         stdout.write_all(b"\n").await?;
                     }
                     Err(error) => {
-                        let err_resp = ErrorResponse { id: request_id, error };
+                        let err_resp = ErrorResponse {
+                            id: request_id,
+                            error,
+                        };
                         let resp_str = serde_json::to_string(&err_resp)?;
                         stdout.write_all(resp_str.as_bytes()).await?;
                         stdout.write_all(b"\n").await?;
@@ -172,4 +177,4 @@ async fn main() -> anyhow::Result<()> {
     }
 
     Ok(())
-}
+}