feat: add team collaboration sessions for admins, enhancing session management and visibility in the application

src/services/weekly-checkin.ts

@@ -1,5 +1,6 @@
 import { prisma } from '@/services/database';
 import { resolveCollaborator } from '@/services/auth';
+import { getTeamMemberIdsForAdminTeams } from '@/services/teams';
 import type { ShareRole, WeeklyCheckInCategory, Emotion } from '@prisma/client';
 
 // ============================================
@@ -76,6 +77,43 @@ export async function getWeeklyCheckInSessionsByUserId(userId: string) {
   return sessionsWithResolved;
 }
 
+/** Sessions owned by team members (where user is team admin) that are NOT shared with the user. */
+export async function getTeamCollaboratorSessionsForAdmin(userId: string) {
+  const teamMemberIds = await getTeamMemberIdsForAdminTeams(userId);
+  if (teamMemberIds.length === 0) return [];
+
+  const sessions = await prisma.weeklyCheckInSession.findMany({
+    where: {
+      userId: { in: teamMemberIds },
+      shares: { none: { userId } },
+    },
+    include: {
+      user: { select: { id: true, name: true, email: true } },
+      shares: {
+        include: {
+          user: { select: { id: true, name: true, email: true } },
+        },
+      },
+      _count: { select: { items: true } },
+    },
+    orderBy: { updatedAt: 'desc' },
+  });
+
+  const withRole = sessions.map((s) => ({
+    ...s,
+    isOwner: false as const,
+    role: 'VIEWER' as const,
+    isTeamCollab: true as const,
+  }));
+
+  return Promise.all(
+    withRole.map(async (s) => ({
+      ...s,
+      resolvedParticipant: await resolveCollaborator(s.participant),
+    }))
+  );
+}
+
 export async function getWeeklyCheckInSessionById(sessionId: string, userId: string) {
   // Check if user owns the session OR has it shared
   const session = await prisma.weeklyCheckInSession.findFirst({