v0.3.0

Fix #214: Static assets (logo, favicon, agent.json) no longer return 401 when API key is set
Fix #218: Schedule POST now validates agent_id and rejects empty values instead of silently falling back
Fix #210: Discord intents default changed from 33280 to 37376 to include DIRECT_MESSAGES
Fix #213: ClawHub install now returns 429 TOO_MANY_REQUESTS instead of masking rate limits as 500
Fix #211: GPT-5 and o-series models now use max_completion_tokens with automatic retry detection
Fix #212: provider_urls from config.toml now flow through to all LLM driver creation paths
Fix #186: Cron create CLI sends proper nested schedule/action JSON structure with required name field
Fix #206: Added hand check-deps, install-deps, pause, and resume CLI commands