docs(wiki): GEO/AEO pass across all pages — answer-first intros, FAQs, question headings
Optimize every wiki page for AI answer engines (GEO/AEO) and classic SEO,
additively — all facts, commands, config keys, defaults, and links preserved:
- Answer-first, self-contained intros so each page stands alone if an AI surfaces
it with no other context (each restates what blumi is in one clause).
- TL;DR / "Key facts" blocks of atomic, extractable facts near the top.
- Question-style headings ("What is X?", "How do I Y?") matching natural queries.
- A FAQ (Q&A) section on each substantive page — the most AI-citable format.
- Consistent entity naming + acronyms expanded on first use (RAG, SEDM, RPL,
BYOK, mDNS, FCM, STT/TTS, ...).
- Fixed stale version (0.3.0 -> 0.5.0) on Home.
Co-Authored-By: Blumi <ankur.nairit@gmail.com>