Add environment variable management for delegating to agents.
Features:
- Add ENV_DIR constant (\~/.kugetsu/env)
- Add mask_sensitive_vars() to hide sensitive values in logs
- Add load_agent_env() to load agent-specific env files
- Add cmd_env command for managing env files:
- list: List all env files
- show [agent]: Show env file contents (masked)
- set <key> <value> [agent]: Set key=value
- get <key> [agent]: Get value for key
- rm <key> [agent]: Remove key
- Update cmd_delegate to load pm-agent.env or default.env before running
Example usage:
kugetsu env set GITEA_TOKEN xxx pm-agent
kugetsu delegate "post comment on #69"
Fixes#76
756ac41aba