feat(aislopcast): add episode 9 — Lehrwerkstatt and Agent's Dead Silence

feat(articles): add "Interesting Articles by Other Authors" section

feat(aislopcast): add episode 8 — Keeping Codex on a Leash

feat(aislopcast): add episode 8 — Keeping Codex on a Leash

docs: document IndexNow setup and post-deploy step in CLAUDE.md

feat(seo): set up IndexNow push to Yandex/Bing/etc

feat(seo): add <link rel="canonical"> to every page

chore: add Yandex Webmaster site verification file

fix(aislopcast): remove bold emphasis from episode 7 body text

fix(aislopcast): drop overview subtitle from episode 7

feat(aislopcast): add episode 7 — A New Way to Launch the Calculator

feat(analytics): add self-hosted Umami as first-party tracker alongside GA/Metrika

fix(analytics): drop bogus Image-based availability check that blocked all real users

fix(aislopcast): align episode 5 video chapters with the actual subtitle track

fix(aislopcast): align episode 6 video chapters with the actual subtitle track

fix(nginx): force browsers to revalidate HTML pages between deploys

feat(aislopcast): add Sources sections to episodes 5 and 6, sharpen episode 6 names and quotes

fix(aislopcast): translate Russian pun-names properly in episode 6 EN

fix(aislopcast): rename episode 6 title and Part Four