Fix ESLint errors and warnings in main codebase

- Fix TypeScript error: Replace 'any' type with specific union type in teams API
- Remove unused variable assignment in obsClient.js
- Remove unused error binding in apiHelpers.ts catch block
- Disable exhaustive-deps rule for custom hook with dynamic dependencies

All blocking linter errors resolved. Remaining warnings are in test files only.

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

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

app/api/teams/[teamId]/route.ts

@@ -21,7 +21,7 @@ export async function PUT(
         
         // Build dynamic query based on what fields are being updated
         const updates: string[] = [];
-        const values: any[] = [];
+        const values: (string | number | null)[] = [];
         
         if (team_name) {
             updates.push('team_name = ?');

lib/apiHelpers.ts

@@ -140,7 +140,7 @@ export async function parseRequestBody<T>(
     }
     
     return { success: true, data: body as T };
-  } catch (_error) {
+  } catch {
     return {
       success: false,
       response: createErrorResponse(

lib/obsClient.js

@@ -130,7 +130,7 @@ async function createGroupIfNotExists(groupName) {
 
     if (!existingScene) {
       console.log(`Creating group "${groupName}"`);
-      const createResult = await obsClient.call('CreateScene', { sceneName: groupName });
+      await obsClient.call('CreateScene', { sceneName: groupName });
       
       // Get the scene UUID after creation
       const { scenes: updatedScenes } = await obsClient.call('GetSceneList');

lib/performance.ts

@@ -193,5 +193,6 @@ export function useSmartPolling(
         intervalRef.current = null;
       }
     };
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [interval, isVisible, ...dependencies]);
 }