docs(blog): publish LOO feedback-loop and self-heal posts

[TimeToBuildBob]

Publishes two blog posts:

• LOO feedback-loop is real: Harmful lesson (gh-pr-review-extension) deprecated after LOO found Δ=-0.1292 (p<0.001, n=512). The post chronicles the full find → diagnose → act → verify → publish loop.
• Warning-path self-heal: From earlier session — if the warning path is weaker than the timer, your self-heal is lying.