feat: add Facebook account tracking and management

- Introduced new migration for `facebook_accounts` and `facebook_scrape_logs` tables.
- Updated the scraping logic to handle Facebook accounts, including success and failure tracking.
- Implemented API endpoints for managing Facebook accounts and their scrape logs.
- Enhanced user permissions to restrict access to Facebook account management to admins and super admins.
- Added a dialog component for displaying and managing Facebook accounts in the UI.
- Updated lead fetching logic to include user role checks for assignment and access.

src/app/api/leads/[id]/route.ts

@@ -111,6 +111,11 @@ export async function PATCH(request: NextRequest, { params }: { params: Promise<
     if (body.description !== undefined) { fields.push(`notes = $${idx++}`); values.push(body.description) }
     if (body.source !== undefined) { fields.push(`source_id = $${idx++}`); values.push(body.source) }
     if (body.assignedUserId !== undefined) {
+      const isAdmin = user.role === "admin" || user.role === "super_admin"
+      if (!isAdmin) {
+        // non-admin cannot reassign
+        return NextResponse.json({ error: "Only admins can reassign leads" }, { status: 403 })
+      }
       fields.push(`assigned_to = $${idx++}`)
       values.push(body.assignedUserId === "none" ? null : body.assignedUserId)
     }