diff --git a/apps/backend/src/routes/public.ts b/apps/backend/src/routes/public.ts
index 6820072..01f1378 100644
--- a/apps/backend/src/routes/public.ts
+++ b/apps/backend/src/routes/public.ts
@@ -77,14 +77,18 @@ interface CardLinkWithPlatform {
 
 export async function publicRoutes(app: FastifyInstance) {
   // ─── Public Profile ───
+ /**
+   * GET /api/u/:username
+   * Returns the public profile information for a user.
+   */
   app.get('/:username', {
     config: {
       rateLimit: {
         max: 100,
-        timeWindow: '1 minute'
-      }
-    } as FastifyContextConfig
-  }, async (request: FastifyRequest<{ Params: { username: string }; Querystring: { source?: string } }>, reply: FastifyReply) => {
+        timeWindow: '1 minute',
+      },
+    },
+  }, async (request: FastifyRequest<{ Params: { username: string } }>, reply: FastifyReply) => {
     const { username } = request.params;
 
     const user = await app.prisma.user.findUnique({
@@ -234,19 +238,19 @@ export async function publicRoutes(app: FastifyInstance) {
   });
 
   // ─── Public Card View ───
+  /**
+   * GET /api/u/:username/card/:cardId
+   * Returns full owner profile + specific card data.
+   * Used when viewing a card through username + cardId (e.g. QR code scans).
+   */
   app.get('/:username/card/:cardId', {
     config: {
       rateLimit: {
         max: 100,
-        timeWindow: '1 minute'
-      }
-    } as FastifyContextConfig
-  }, async (request: FastifyRequest<{ Params: { username: string; cardId: string }; Querystring: { source?: string } }>, reply: FastifyReply) => {
-    /**
-     * GET /api/public/:username/card/:cardId
-     * Returns full owner profile + specific card data.
-     * Used when viewing a card through username + cardId (e.g. QR code scans).
-    */
+        timeWindow: '1 minute',
+      },
+    },
+  }, async (request: FastifyRequest<{ Params: { username: string; cardId: string } }>, reply: FastifyReply) => {
     const { username, cardId } = request.params;
 
     const user = await app.prisma.user.findUnique({