feat: update bundle ID config, CloudKit container, and add landing page

- Update CloudKit container ID to iCloud.com.88oakapps.SportsTime across all services
- Update IAP product IDs to match new bundle ID (com.88oakapps.SportsTime)
- Add app landing page with light, welcoming design matching app aesthetic
- Update entitlements and project configuration

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

SportsTime/SportsTime.entitlements

@@ -6,7 +6,7 @@
 	<string>development</string>
 	<key>com.apple.developer.icloud-container-identifiers</key>
 	<array>
-		<string>iCloud.com.sportstime.app</string>
+		<string>iCloud.com.88oakapps.SportsTime</string>
 	</array>
 	<key>com.apple.developer.icloud-services</key>
 	<array>