add user profile, profile vibe and trip vibe and social signal

features/trip/schemas.ts

@@ -1,6 +1,7 @@
 import { z } from "zod/v4";
 import { LIMITS } from "@/lib/limits";
 import { ACTIVITY_CATEGORIES } from "@/lib/activity-category";
+import { VIBES } from "@/lib/vibe";
 import type { ActivityCategory } from "@/app/generated/prisma/enums";
 import {
   isTripDepartureDayPast,
@@ -146,6 +147,14 @@ export const createTripSchema = z
         )
         .optional()
     ),
+    vibe: z.preprocess(
+      (val) => {
+        if (val == null) return undefined;
+        const s = String(val).trim();
+        return s === "" ? undefined : s;
+      },
+      z.enum([...VIBES]).optional()
+    ),
   })
   .superRefine((data, ctx) => {
     const dep = tripStoredInstantFromYmd(data.date);