Add error handling for database failures in signup/login/profile

None of the database calls in these three places were wrapped in
try/catch, so any database hiccup (disk issue, lock contention, etc.)
surfaced as an unhandled 500 with a useless generic message and no
server-side log to explain why.

Found this while testing every page's redirects end to end: a broken
test setup on my end (an old server process left running against a
deleted database file) produced exactly this failure mode, which
would look identical to a real intermittent outage to an end user.

Now: signup and profile-update return a clear "try again in a
moment" message with the real error logged server-side; login logs
the real error but still shows the existing generic
"incorrect email or password" message to the client (matches
current behavior, avoids leaking account existence).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VL5YUEf2B9LG4xdVUQwcSg

src/app/api/profile/route.ts

@@ -28,11 +28,19 @@ export async function PATCH(request: Request) {
     return NextResponse.json({ error: message }, { status: 400 });
   }
 
-  const user = await prisma.user.update({
+  try {
-    where: { id: session.user.id },
+    const user = await prisma.user.update({
-    data: parsed.data,
+      where: { id: session.user.id },
-    select: { id: true, name: true, email: true, age: true, bio: true },
+      data: parsed.data,
-  });
+      select: { id: true, name: true, email: true, age: true, bio: true },
+    });
 
-  return NextResponse.json({ user });
+    return NextResponse.json({ user });
+  } catch (err) {
+    console.error("profile update failed:", err);
+    return NextResponse.json(
+      { error: "We couldn't save your changes right now. Please try again in a moment." },
+      { status: 503 },
+    );
+  }
 }

src/app/api/signup/route.ts

@@ -26,17 +26,25 @@ export async function POST(request: Request) {
 
   const { name, email, password, age } = parsed.data;
 
-  const existing = await prisma.user.findUnique({ where: { email } });
+  try {
-  if (existing) {
+    const existing = await prisma.user.findUnique({ where: { email } });
-    return NextResponse.json({ error: "An account with that email already exists" }, { status: 409 });
+    if (existing) {
+      return NextResponse.json({ error: "An account with that email already exists" }, { status: 409 });
+    }
+
+    const passwordHash = await bcrypt.hash(password, 12);
+
+    const user = await prisma.user.create({
+      data: { name, email, age, passwordHash },
+      select: { id: true, email: true, name: true },
+    });
+
+    return NextResponse.json({ user }, { status: 201 });
+  } catch (err) {
+    console.error("signup failed:", err);
+    return NextResponse.json(
+      { error: "We couldn't create your account right now. Please try again in a moment." },
+      { status: 503 },
+    );
   }
-
-  const passwordHash = await bcrypt.hash(password, 12);
-
-  const user = await prisma.user.create({
-    data: { name, email, age, passwordHash },
-    select: { id: true, email: true, name: true },
-  });
-
-  return NextResponse.json({ user }, { status: 201 });
 }

src/lib/auth.ts

@@ -18,17 +18,24 @@ export const authOptions: AuthOptions = {
       async authorize(credentials) {
         if (!credentials?.email || !credentials?.password) return null;
 
-        await ensureDb();
+        try {
+          await ensureDb();
 
-        const user = await prisma.user.findUnique({
+          const user = await prisma.user.findUnique({
-          where: { email: credentials.email.toLowerCase() },
+            where: { email: credentials.email.toLowerCase() },
-        });
+          });
-        if (!user) return null;
+          if (!user) return null;
 
-        const valid = await bcrypt.compare(credentials.password, user.passwordHash);
+          const valid = await bcrypt.compare(credentials.password, user.passwordHash);
-        if (!valid) return null;
+          if (!valid) return null;
 
-        return { id: user.id, email: user.email, name: user.name };
+          return { id: user.id, email: user.email, name: user.name };
+        } catch (err) {
+          // Logged so a database hiccup is visible server-side, even though
+          // the client only ever sees a generic "incorrect email or password".
+          console.error("login authorize() failed:", err);
+          return null;
+        }
       },
     }),
   ],