a7a847eb9e
Add resolveRunAgent() to determine agent with priority: 1. CLI --agent flag (highest) 2. OPENCODE_DEFAULT_AGENT environment variable 3. oh-my-opencode.json 'default_run_agent' config 4. 'sisyphus' (fallback) Features: - Case-insensitive agent name matching - Warn and fallback when requested agent is disabled - Pick next available core agent when default is disabled