feat: overhaul OpenClaw config panels with JSON5 round-trip write engine

- Add json-five crate for JSON5 serialization preserving comments and formatting
- Rewrite openclaw_config.rs with comment-preserving JSON5 read/write engine
- Add Tauri commands: get_openclaw_live_provider, write_openclaw_config_section
- Redesign EnvPanel as full JSON editor with structured error handling
- Add tools.profile selection (minimal/coding/messaging/full) to ToolsPanel
- Add legacy timeout migration support to AgentsDefaultsPanel
- Add OpenClawHealthBanner component for config validation warnings
- Add supporting hooks, mutations, utility functions, and unit tests

src-tauri/src/lib.rs

@@ -1054,6 +1054,8 @@ pub fn run() {
             // OpenClaw specific
             commands::import_openclaw_providers_from_live,
             commands::get_openclaw_live_provider_ids,
+            commands::get_openclaw_live_provider,
+            commands::scan_openclaw_config_health,
             commands::get_openclaw_default_model,
             commands::set_openclaw_default_model,
             commands::get_openclaw_model_catalog,