chore: fix lint errors and reduce warnings across codebase (#234)

* chore: fix lint errors and reduce warnings across codebase

- Fix noExplicitAny catches in backend routes and plugins
- Fix noNestedTernary issues in backend services
- Add keyboard event handlers for useKeyWithClickEvents in frontend
- Disable noImportantStyles rule in biome.json
- Fix formatting errors across all changed files
- Fix test file lint issues

Closes #233

* fix: restore any types in test files for TS compatibility

* fix: revert Auth.tsx dependency array changes that caused infinite re-render

* fix: null-safe user.username access in AppContext dependency array

backend/src/routes/oidc.ts

@@ -104,7 +104,7 @@ export async function oidcRoutes(app: FastifyInstance) {
 			});
 
 			return reply.redirect(authUrl.href);
-		} catch (err: any) {
+		} catch (err: unknown) {
 			console.error("[OIDC] Login error:", err);
 			return reply.redirect(`${getFrontendUrl()}/?error=oidc_init_failed`);
 		}
@@ -167,7 +167,10 @@ export async function oidcRoutes(app: FastifyInstance) {
 				// Extract username from configured claim
 				const usernameClaim = env.OIDC_USERNAME_CLAIM;
 				const username =
-					(userInfo as any)[usernameClaim] || userInfo.preferred_username || userInfo.email || userInfo.sub;
+					(userInfo as Record<string, string>)[usernameClaim] ||
+					userInfo.preferred_username ||
+					userInfo.email ||
+					userInfo.sub;
 				const oidcSubject = userInfo.sub;
 
 				if (!username || !oidcSubject) {
@@ -210,7 +213,7 @@ export async function oidcRoutes(app: FastifyInstance) {
 				// In dev: CORS_ORIGINS contains the frontend URL
 				const frontendUrl = env.CORS_ORIGINS.split(",")[0] || "http://localhost:5173";
 				return reply.redirect(`${frontendUrl}/dashboard`);
-			} catch (err: any) {
+			} catch (err: unknown) {
 				console.error("[OIDC] Callback error:", err);
 				return reply.redirect(`${getFrontendUrl()}/?error=oidc_callback_failed`);
 			}