feat: prisma schema, groups API, deploy workflow

app/server/api/groups/[id].delete.ts

@@ -0,0 +1,20 @@
+import { requireAuth } from '~/server/utils/auth'
+import { groups, userGroups } from '~/server/utils/db'
+
+export default defineEventHandler(async (event) => {
+  const user = requireAuth(event)
+  const groupId = getRouterParam(event, 'id')!
+
+  const group = groups.get(groupId)
+  if (!group) throw createError({ statusCode: 404, message: 'Group not found' })
+  if (group.ownerId !== user.id && user.role !== 'admin') {
+    throw createError({ statusCode: 403, message: 'Only owner can delete group' })
+  }
+
+  groups.delete(groupId)
+  for (const [key] of userGroups) {
+    if (key.endsWith(`-${groupId}`)) userGroups.delete(key)
+  }
+
+  return { success: true }
+})