feat: prisma schema, groups API, deploy workflow

app/server/api/groups/index.post.ts

@@ -0,0 +1,27 @@
+import { requireAuth } from '~/server/utils/auth'
+import { groups, userGroups } from '~/server/utils/db'
+
+export default defineEventHandler(async (event) => {
+  const user = requireAuth(event)
+  const body = await readBody(event)
+  const { name, description = '', isPublic = true } = body
+
+  if (!name?.trim()) {
+    throw createError({ statusCode: 400, message: 'Group name is required' })
+  }
+
+  const id = `group-${Date.now()}-${Math.random().toString(36).slice(2, 6)}`
+  const now = new Date().toISOString()
+
+  const group = { id, name: name.trim(), description, isPublic, createdAt: now, updatedAt: now, ownerId: user.id }
+  groups.set(id, group)
+
+  userGroups.set(`${user.id}-${id}`, {
+    userId: user.id,
+    groupId: id,
+    role: 'admin',
+    joinedAt: now
+  })
+
+  return { group }
+})