- Add get_token_for_video() method to select token pool based on video requirements
- 720p or >6s videos automatically use ssoSuper token
- 480p and ≤6s videos use ssoBasic token
- Fallback to ssoBasic when ssoSuper is unavailable
- Add configuration options for smart routing
- Add test file for token routing logic
This solves the issue where non-SSO Super tokens were silently downgraded
to 480p by Grok API when requesting 720p videos.