- Create server/src/onboarding-assets/general/ with 4 files (AGENTS.md, SOUL.md, HEARTBEAT.md, TOOLS.md)
- Add general role to DEFAULT_AGENT_BUNDLE_FILES with full 4-file bundle
- Add resolveDefaultAgentInstructionsBundleRole branch for general role
- Rename AGENT_ROLE_LABELS general from 'General' to 'Generalist'
- Add pm and engineer entries to DEFAULT_AGENT_BUNDLE_FILES
- Update resolveDefaultAgentInstructionsBundleRole to handle pm and engineer roles
- DefaultAgentBundleRole type auto-includes new keys via keyof typeof
- All changes marked with // [nexus] for rebase visibility