Fix frontend compatibility with new API response format

Frontend Updates:
- Handle both old and new API response formats for backward compatibility
- Updated Teams, Streams, and Edit Stream pages to parse new response structure
- Added graceful handling of { success: true, data: [...] } format
- Maintained support for legacy direct array responses

Bug Fix:
- Resolved TypeError: teamsData.map is not a function
- Ensures smooth transition as we update API endpoints
- Prevents breaking changes during API modernization

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/edit/[id]/page.tsx

@@ -65,9 +65,12 @@ export default function EditStream() {
           team_id: streamData.team_id,
         });
         
+        // Handle both old and new API response formats
+        const teams = teamsData.success ? teamsData.data : teamsData;
+        
         // Map teams for dropdown
         setTeams(
-          teamsData.map((team: Team) => ({
+          teams.map((team: Team) => ({
             id: team.team_id,
             name: team.team_name,
           }))