Major enhancements to stream management and UI improvements

- Changed branding from "OBS Stream Manager" to "Live Stream Manager" throughout UI
- Enhanced stream deletion with comprehensive OBS cleanup:
  - Removes stream's nested scene
  - Deletes browser source
  - Clears text files referencing the stream
  - Removes stream from all source switchers
- Enhanced team deletion to clean up all OBS components:
  - Deletes team scene/group
  - Removes team text source
  - Deletes all associated stream scenes and sources
  - Clears all related text files
- Fixed stream selection to use proper team-prefixed names in text files
- Added StreamWithTeam type for proper team data handling
- Improved browser source creation with audio controls:
  - Enabled "Control Audio via OBS" setting
  - Auto-mutes audio on creation
- Attempted multiple approaches to fix text centering (still unresolved)

Known issue: Text centering still positions left edge at center despite multiple attempts

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

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

components/Header.tsx

@@ -20,7 +20,7 @@ export default function Header() {
               </svg>
             </div>
             <div>
-              <h1 className="text-xl font-bold">OBS Stream Manager</h1>
+              <h1 className="text-xl font-bold">Live Stream Manager</h1>
               <p className="text-sm opacity-80">Professional Control</p>
             </div>
           </div>