optimize: why-ai-agents-need-network-stack — quotable token Q&A for citation surface

[pstayets]

Page: /blog/why-ai-agents-need-network-stack

Before: 166 impressions, 0 clicks, position 7.7 — top citation-surface page for the zero-click AI tier, led by 'how are network agent tokens different?' (88 imp, pos 7.7). Goal is CITATION, not CTR.

⚠ Stacks on #209 (seo/agent-connectivity-best-practices) per the optimize brief — merge #209 first; this PR then shrinks to its own diff.

Changes:

• Added a quotable Q&A callout near the top answering 'how are network agent tokens different?' verbatim (assistant-citable), linking to /learn/how-are-network-agent-tokens-different to consolidate
• Added 4 FAQ entries (FAQPage JSON-LD): network agent tokens, production AI transport layer requirements, moving beyond HTTP streaming, persistent vs non-persistent networking
• Fitted the title to the 50-60 char pass-through band (the 69-char blog: Agent Connectivity Best Practices — expand network-stack post for GSC striking-distance query #209 title crops to '...Why AI | Pilot Protocol' in the built output); title/meta/blogPosts.json/llms.txt synced
• Meta description now front-loads the top conversational query (147 chars)