fix: finish Kinetic rename in llms.txt, llms-full.txt and api-ai.json

[sarthakagrawal927]

Summary

• Finish the Email Manager → Kinetic rename in the three agent-facing files missed by the initial rename: public/llms.txt, public/llms-full.txt, and public/api-ai.json.
• Per issue Rename to Kinetic missed llms.txt, llms-full.txt and api-ai.json #49's canonical record, name is Kinetic; "Email Manager" is kept only as an explicitly labelled retired alias (alternateName in JSON, a "Formerly "Email Manager" (retired alias)" line in the txt files), never as the primary name.
• Also updated the in-repo runtime/generator source src/agent-edge.mjs (the AGENT_SURFACE payload that serves /api/ai and embeds the llms/llms-full/indexMd strings), since it is marked "generated by apply-agent-surfaces" — an external fleet tool not invoked by pnpm build, so leaving it stale would serve the old name at runtime and drift from the static files.

Files changed

• public/llms.txt — heading # Kinetic; added "Formerly "Email Manager" (retired alias)" line.
• public/llms-full.txt — heading and ## Index entry → # Kinetic; added retired-alias line.
• public/api-ai.json — name → Kinetic; added alternateName: "Email Manager".
• src/agent-edge.mjs — AGENT_SURFACE.name, catalog.name → Kinetic with alternateName; embedded llmsTxt/llmsFullTxt/indexMd strings updated to match the public files.

Generator involvement

src/agent-edge.mjs and the JSON-LD block in index.html are both tagged "generated by apply-agent-surfaces", which is an external fleet tool and is not run by pnpm build (build runs vite build, build:landing, overlay-landing.mjs, verify:indexing — none regenerate these files). So the edits will not be stripped on next build. I fixed the in-repo source so the runtime-served /api/ai matches.

Test plan

• pnpm lint — clean
• pnpm typecheck — clean
• pnpm test — 98 passed
• No remaining "Email Manager" as a primary name in the four files (only as labelled retired alias)

Closes #49