Add `reviq completions bash/zsh` command with dynamic shell completions:
- Create bash-complete.ts entry point using stricli's proposeCompletions API
- Add completions command with bash and zsh support (fish planned)
- Extract app export to separate app.ts for shared imports
- Add @stricli/auto-complete dependency and __reviq_bash_complete bin entry
Also fix lint/type errors in api-server tests and helpers.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
c4b0509023