feat: Phase 1 — Config UI Schema system with per-field widget routing

- Backend: add Arma3ConfigGenerator.get_ui_schema() with widget hints per field
- Backend: add ServerService.get_config_schema() and GET /config/schema endpoint
- Frontend: add FieldSchema/ConfigSchema types + useServerConfigSchema hook
- Frontend: new TagListEditor component for dynamic string-list editing
- Frontend: ConfigEditor now routes each field to correct widget (text/number/password/textarea/select/toggle/tag-list)
- Frontend: password fields have show/hide toggle; toggles render as checkbox; tag-list uses TagListEditor
- Tests: 8 new tests covering hook and TagListEditor; all 136 tests green

frontend/src/hooks/useServerDetail.ts

@@ -115,6 +115,21 @@ export interface Mod {
   path: string;
   size_bytes: number;
   enabled: boolean;
+  display_name: string | null;
+  workshop_id: string | null;
+}
+
+export interface FieldSchema {
+  widget: "text" | "number" | "password" | "textarea" | "select" | "toggle" | "tag-list";
+  label?: string;
+  placeholder?: string;
+  min?: number;
+  max?: number;
+  options?: string[];
+}
+
+export interface ConfigSchema {
+  [section: string]: { [field: string]: FieldSchema };
 }
 
 export interface ModsResponse {
@@ -125,6 +140,19 @@ export interface ModsResponse {
 
 // ── Query Hooks ────────────────────────────────────────────────────────
 
+export function useServerConfigSchema(serverId: number) {
+  return useQuery({
+    queryKey: ["servers", serverId, "config", "schema"],
+    queryFn: async () => {
+      const res = await apiClient.get<{ success: boolean; data: ConfigSchema }>(
+        `/api/servers/${serverId}/config/schema`,
+      );
+      return res.data.data;
+    },
+    enabled: serverId > 0,
+  });
+}
+
 export function useServerConfig(serverId: number) {
   return useQuery({
     queryKey: ["servers", serverId, "config"],