feat(openclaw): add provider form fields and UI components

- Add OpenClawFormFields component for provider configuration
- Add Collapsible UI component (radix-ui dependency)
- Update ProviderForm with OpenClaw-specific handlers and preset logic
- Extend OpenClawModel type with reasoning, input, maxTokens fields
- Exclude OpenClaw from universal provider tab in AddProviderDialog

package.json

@@ -54,6 +54,7 @@
     "@lobehub/icons-static-svg": "^1.73.0",
     "@radix-ui/react-accordion": "^1.2.12",
     "@radix-ui/react-checkbox": "^1.3.3",
+    "@radix-ui/react-collapsible": "^1.1.12",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.16",
     "@radix-ui/react-label": "^2.1.7",