feat: implement FlowEditor component and add endpoint for user groups retrieval

app/server/api/user/groups.get.ts

@@ -1,18 +1,21 @@
 import { requireAuth } from '~/server/utils/auth'
-import { userGroups, groups } from '~/server/utils/db'
+import { prisma } from '~/server/utils/prisma'
 
 export default defineEventHandler(async (event) => {
   const user = requireAuth(event)
   
-  // Get all groups the user is a member of
-  const userGroupMemberships = Array.from(userGroups.values()).filter(
-    membership => membership.userId === user.id
-  )
+  // Находим группы, где пользователь либо владелец, либо участник
+  const groups = await prisma.group.findMany({
+    where: {
+      OR: [
+        { ownerId: user.id },
+        { members: { some: { userId: user.id } } }
+      ]
+    },
+    orderBy: {
+      name: 'asc'
+    }
+  })
   
-  const userGroupsData = userGroupMemberships.map(membership => {
-    const group = groups.get(membership.groupId)
-    return group ? { ...group, membershipRole: membership.role } : null
-  }).filter(Boolean)
-  
-  return { groups: userGroupsData }
+  return { groups }
 })