feat: display ConfigChange hook events in terminal

Detects [ConfigChange Hook] lines in stderr and emits them as
config-change line type with [config] prefix in purple.

Closes #151

src-tauri/src/wsl_bridge.rs

@@ -761,18 +761,21 @@ fn handle_stderr(
                     }
                 }
 
-                // Worktree hook events are informational — emit with a distinct type
-                let is_worktree_event = line.contains("[WorktreeCreate Hook]")
-                    || line.contains("[WorktreeRemove Hook]");
+                // Hook events are informational — emit with distinct types instead of error
+                let line_type = if line.contains("[WorktreeCreate Hook]")
+                    || line.contains("[WorktreeRemove Hook]")
+                {
+                    "worktree"
+                } else if line.contains("[ConfigChange Hook]") {
+                    "config-change"
+                } else {
+                    "error"
+                };
 
                 let _ = app.emit(
                     "claude:output",
                     OutputEvent {
-                        line_type: if is_worktree_event {
-                            "worktree".to_string()
-                        } else {
-                            "error".to_string()
-                        },
+                        line_type: line_type.to_string(),
                         content: line,
                         tool_name: None,
                         conversation_id: conversation_id.clone(),