Implemented the tui CLI command with full feature parity to the run command: ## Changes Made ### Added to cli.py (src/trckr_plow/cli.py) 1. **Added --one flag** (line 453-454): Allows processing only one issue then exiting, same as run command 2. **Added --resume option** (line 456): Accepts an issue ID to resume from, matching run command interface 3. **Added TTY detection** (lines 488-501): Gracefully handles non-interactive terminals with helpful error message 4. **Added curses capability check**: Verifies terminal supports TUI features before launching 5. **Updated engine initialization** (lines 536-550): Passes single_issue=one and plan_mode=plan to engines 6. **Added comprehensive error handling** (lines 563-608): Same error handling as run command ### Added Tests (tests/test_tui.py) 1. test_tui_one_flag_accepted: Verifies --one flag appears in help 2. test_tui_resume_option_accepted: Verifies --resume option appears in help 3. test_tui_non_interactive_terminal_error: Verifies graceful failure on non-TTY ## Verification - All 659 tests pass - trckr-plow tui --help shows all options - Non-interactive terminal detection works correctly