- Add ExitCoder interface for edition-specific error types to provide custom exit codes
- Add RawStderrError interface for errors that bypass CLI formatting and output raw content to stderr
- Update ExitCode() to resolve exit codes via ExitCoder interface before falling back to default
- Add ClassifyToolResult hook in edition.Hooks for custom MCP tool result error classification
- Invoke ClassifyToolResult in runner before default business-error detection
- Handle RawStderrError in printExecutionError to pass raw JSON through to desktop runtime
- Add unit tests for ExitCoder and RawStderrError interfaces
Add SaveToken, LoadToken, and DeleteToken hook fields to edition.Hooks so overlay builds can provide custom token storage. Refactor SaveTokenData, LoadTokenData, and DeleteTokenData to delegate to hooks when present, falling back to default keychain-based storage.
- Add AuthClientID and AuthClientFromMCP fields to edition Hooks, allowing overlays to override the default OAuth client ID and route auth through MCP endpoints.
- Introduce token marker file (token.json) mechanism so the host application in embedded mode can detect authentication state without accessing the keychain.
- Update SaveTokenData/DeleteTokenData to write/remove the marker file when running in embedded mode.
- Update ClientID() and IsClientIDFromMCP() to respect edition overrides.