blog: reframe agent-readiness post as an evergreen how-to

Retitle from the score-anchored "85 to 99" framing to "How to Make Your
Docs Agent-Ready" (new slug, hero, and meta image to match): the live
score already moved to 100 and will keep drifting, so the post now leads
with the process and treats the number as a dated snapshot.

- Pyramid structure: definition and four properties in the lead, five
  fixes with a summary table, CI section, then the reader playbook
- Voice switched from I to we; date bumped to 2026-07-24
- Five adversarial review rounds (fact, reader-skeptic, positioning
  lenses in fresh contexts); all quoted output re-verified byte-exact
  against live endpoints and the live Mintlify report on 2026-07-24
- Honest caveats moved inline to where each claim is made (parity check
  still failing, MCP probe mechanism, pointer-placement warning)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: ankur-arch