feat(28-03): add profile navigation link and extend /me with createdAt

Adds Profile link to UserMenu dropdown (above Settings), extends /me
endpoint to return user's createdAt for member-since display, and
updates AuthState interface with optional createdAt field.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/client/components/UserMenu.tsx

@@ -30,6 +30,18 @@ export function UserMenu() {
 			</button>
 			{open && (
 				<div className="absolute right-0 mt-1 w-40 bg-white rounded-lg shadow-lg border border-gray-200 py-1 z-50">
+					<Link
+						to="/profile"
+						onClick={() => setOpen(false)}
+						className="flex items-center gap-2 px-3 py-2 text-sm text-gray-700 hover:bg-gray-50 transition-colors"
+					>
+						<LucideIcon
+							name="circle-user"
+							size={16}
+							className="text-gray-400"
+						/>
+						Profile
+					</Link>
 					<Link
 						to="/settings"
 						onClick={() => setOpen(false)}

src/client/hooks/useAuth.ts

@@ -2,7 +2,7 @@ import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { apiDelete, apiGet, apiPost } from "../lib/api";
 
 interface AuthState {
-	user: { id: string; email?: string } | null;
+	user: { id: string; email?: string; createdAt?: string } | null;
 	authenticated: boolean;
 }
 

src/server/routes/auth.ts

@@ -1,7 +1,9 @@
 import { getAuth } from "@hono/oidc-auth";
 import { zValidator } from "@hono/zod-validator";
+import { eq } from "drizzle-orm";
 import { Hono } from "hono";
 import { z } from "zod";
+import { users } from "../../db/schema.ts";
 import { updateProfileSchema } from "../../shared/schemas.ts";
 import { parseId } from "../lib/params.ts";
 import { requireAuth } from "../middleware/auth.ts";
@@ -26,8 +28,17 @@ app.get("/me", async (c) => {
 	if (auth) {
 		const db = c.get("db");
 		const user = await getOrCreateUser(db, auth.sub);
+		// Get full user record for createdAt (member-since display on profile page)
+		const [fullUser] = await db
+			.select()
+			.from(users)
+			.where(eq(users.id, user.id));
 		return c.json({
-			user: { id: user.id, email: auth.email },
+			user: {
+				id: user.id,
+				email: auth.email,
+				createdAt: fullUser?.createdAt?.toISOString() ?? null,
+			},
 			authenticated: true,
 		});
 	}