* feat: add self-check tip to check output
* style: drop trailing period from self-check tip
Aligns the new tip with the other `Tip:` lines in `specify check`,
which don't end in a period. Per Copilot review feedback on #2574.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* docs: add core commands reference and simplify README CLI section
- New docs/reference/core.md: reference for init (active options only,
copilot as main example), check, and version commands
- docs/toc.yml: add Core Commands under Reference
- README.md: replace verbose CLI Reference section (init options table,
30+ per-agent examples, deprecated flags, env vars) with links to
reference docs; use copilot as main example throughout
* docs: add CLI reference overview page
- New docs/reference/overview.md: explains each CLI surface area
(core, integrations, extensions, presets, workflows) with key
commands and links to detailed reference pages
- docs/toc.yml: add Overview as first item under Reference
- README.md: simplify CLI Reference to single link to overview page
* docs: remove command references from overview, keep paragraphs only
