- Refactor runtime into modular mode/ directory — extract cli, pipe, rest, rpc, interactive, and new tui mode into separate files with a shared session layer, replacing the monolithic main.rs runtime
- Add TUI mode powered by ratatui/crossterm for terminal-native wallet interaction alongside existing CLI, pipe, REST, and RPC modes
- Add auto-generated CLI documentation from clap derive definitions, replacing the hand-maintained manual.md and quickstart.md with a generated cli.md reference
- Enforce strict clippy lints across all production code with explicit test-only allowances
- Bump toml dependency to 1.1 and agent-first-data to 0.7