Add user authentication and dynamic feature/category inputs

Implement Keycloak authentication, protected routes, and add combobox and autocomplete components for tool categories and features.

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lib/api-client-react/src/generated/api.schemas.ts

@@ -138,6 +138,16 @@ export interface RatingDistribution {
   usability: ScoreBucket[];
 }
 
+export interface AuthUser {
+  sub: string;
+  /** @nullable */
+  email?: string | null;
+  /** @nullable */
+  name?: string | null;
+  /** @nullable */
+  preferredUsername?: string | null;
+}
+
 export interface ErrorResponse {
   error: string;
 }