docs(seo): add intent pages, topics checklist, backlink plan, and release drafts

docs: mirror SEO and platform sync policy updates from GitHub main

Sync main snapshot to Hugging Face (no local binary banner)

Add repeatable resource cycle runbook and one-command script

Add automated Pashto resource catalog, search UI, and sync workflow

chore: implement pending structure suggestions for CI, releases, and benchmarking

docs: make all links clickable and add structured resource/docs tooling