docs: reject stale compatibility prose

[yhay81]

Closes #12.

Summary

• advance the human-readable compatibility page to canonical commit 1496dc87b780ff81470518df468a18bd6783ebce
• update create-hayate to 0.13.1, the successful 112/112 matrix run and aggregate SHA-256, and the current golden-app run
• extend release freshness validation beyond create-hayate==... commands to exact create-hayate X.Y.Z prose
• add failing and passing regression tests for prose references

Why

The generated family map was current, but the explanatory evidence page still
carried 0.13.0-era links and hashes. The old checker only guarded executable
pins, allowing user-visible current-evidence prose to drift silently.

Validation

• source runs and hash matched the immutable canonical manifest
• Ruff lint and format
• 17 tests
• live PyPI freshness and generated ecosystem drift
• Zensical strict build and generated site validation
• exact HSTS generation retained
• pip-audit: no known vulnerabilities
• zizmor 1.28.0: no findings
• explicit old-reference absence check
• git diff --check