docs(audits): remove the vendor-feedback docs and sections

[ScriptedAlchemy]

Why

Maintainer decision (2026-09-03): no feedback is submitted to Cursor, Anthropic, or OpenAI, and the repository keeps no vendor-addressed write-ups — not even renamed as "observations". #444 renamed the two feedback drafts; this PR removes them.

Removed

• docs/audits/2026-09-03-host-lineage-observations.md — per-host lineage gap write-up (Cursor / Claude Code / Codex) drafted as vendor feedback, renamed in feat(lineage): request.lineage is the only identity-adjacent surface; scoped, self-correcting Cursor child binding #444.
• docs/audits/2026-09-03-cursor-agent-plugins-observations.md — Cursor ${PLUGIN_ROOT} expansion bug write-up with minimal repro, drafted as a Cursor bug report for Agent Plugins portable: external follow-ups carried over from #307 (Cursor feedback, dogfood re-run, spec watch) #426, renamed in feat(lineage): request.lineage is the only identity-adjacent surface; scoped, self-correcting Cursor child binding #444.
• docs/audits/2026-09-03-cursor-plugin-hooks-registration.md §7 "Documentation discrepancies recorded on Cursor pack: manifest-declared hooks never fire for tool events (Cursor 3.16) — emitted installer must register hooks in ~/.cursor/hooks.json so the plugin works out of the box #407" — the vendor-addressed section of an otherwise engineering audit; §1–§6 (live-docs table, ground truth, evidence matrix, marketplace study, install strategies, automated proof) stay.

Kept

docs/audits/2026-09-03-host-lineage-matrix.md, the hooks-registration audit §1–§6, and both agent-plugins-cursor-ide-proof notes are engineering evidence behind capability tables and diagnostics, not vendor feedback.

Links fixed

• docs/audits/2026-09-02-agent-plugins-cursor-ide-proof.md and docs/audits/2026-09-03-agent-plugins-cursor-ide-proof.md no longer link the deleted file; each now states that no report is sent to Cursor.
• git grep for both deleted filenames (and their former *-feedback.md names) finds no remaining link under docs/, website/, or any README. The one remaining prose mention is a dated mcp.evidence string in packages/agent-bundle/src/adapters/capabilities/portable-1.0.0.json; capability JSON is deliberately out of scope for this docs-only PR (flagged for a follow-up).

Scope

Docs only: no code, capability JSON, changeset, or rendered lineage touched. website/docs/** does not link docs/audits/**, so the docsite build is unaffected. skip-changeset applied (no publishable package changed).

Test plan

• git grep -n -E "host-lineage-observations|cursor-agent-plugins-observations|host-lineage-vendor-feedback|cursor-agent-plugins-feedback" -- . ':!repos' ':!packages/agent-bundle/src/adapters/capabilities' → no hits.
• CI.

Review status

No external reviewer requested (repo policy). Merge on green CI with all threads answered.

[changeset-bot]

⚠️ No Changeset found

Latest commit: ccfeab4

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-03T23:00:09.260806Z	ccfeab4	PR opened

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: ccfeab4752

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[pkg-pr-new]

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle@467

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle/create-agent-bundle@467

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle/@agent-bundle/runtime@467

commit: ccfeab4