fix(api): add error handling and null guard to /api/staff/me

Wrap c.json() in try/catch to surface any remaining serialization
errors rather than crashing with a generic 500. Also change the null-
staff guard from 404 → 500 since a missing staff context is an
internal error, not a not-found case.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/routes/staff.ts

@@ -24,8 +24,11 @@ const updateStaffSchema = z.object({
 });
 
 staffRouter.get("/me", async (c) => {
+  try {
     const staffRow = c.get("staff");
-  if (!staffRow) return c.json({ error: "Staff record not found" }, 404);
+    if (!staffRow) {
+      return c.json({ error: "Staff record not found in context" }, 500);
+    }
     // Explicitly pick serializable fields to avoid BigInt/Date/undefined serialization issues
     return c.json({
       id: staffRow.id,
@@ -39,6 +42,10 @@ staffRouter.get("/me", async (c) => {
       createdAt: staffRow.createdAt,
       updatedAt: staffRow.updatedAt,
     });
+  } catch (err) {
+    console.error("[/api/staff/me] error:", err, "staffRow:", c.get("staff"));
+    return c.json({ error: "Internal error", detail: String(err) }, 500);
+  }
 });
 
 staffRouter.get("/", async (c) => {