- Added `off` and `auto` as valid inputs for the `--thinking` CLI flag.
- Centralized thinking level definitions in `CLI_THINKING_LEVELS` to keep flag options, shell completions, and validation in sync.
- Configured CLI parsing to reject `inherit` as an explicit input to prevent unintended configuration suppression.
- Added `omp completions ` command generating scripts from live command/flag metadata.
- Added hidden `omp __complete` helper for dynamic model and session candidates.
- Completions never drift from the CLI: flags, enums, and subcommands are derived from static descriptors.