feat(team): connect time-off form to API (Closes #437)

[AdityaK9822]

Description

This PR hooks up the employee leave/time-off request submission form directly to the backend API.

Implementation Specifics

1. Frontend Integration:

   • Modified src/components/features/team-management/timeOff/CreateTimeOffForm.tsx to bind the form submission to POST /api/v1/team/time-off.
   • Handled form payload serialization specifically mapped to the TimeOffRequestSchema, ensuring startDate, endDate, leaveType, and reason are correctly passed.
   • Added robust UX feedback states (success/error banners) mapped dynamically to the API response.

2. Backend Enhancements:

   • Updated TimeOffService in src/server/services/time-off.service.ts to correctly extract the authenticated user's organization context.
   • Handled ZodError correctly in the route handler, returning fieldErrors array mapping to specific inputs when invalid properties are passed.
   • Submitting the form cleanly creates the record with status="pending" and appears instantly in the manager's pending queue.

Closes #437

[vercel]

@AdityaK9822 is attempting to deploy a commit to the vestroll's projects Team on Vercel.

A member of the Team first needs to authorize it.