test(benchmarks): add all-family smoke pack

[drewstone]

What changed

• Adds buildIndustryRagBenchmarkSmokeCases() and respondToIndustryRagBenchmarkSmokeCase() to run one CI-safe case for every declared RAG/KB benchmark family.
• Covers BEIR, MTEB retrieval, MS MARCO, TREC DL, MIRACL, LoTTE, BRIGHT, CRAG, HotpotQA, KILT, RAGTruth, FaithBench, and first-party KB improvement in one persisted report.
• Updates the benchmark README and adds a test that proves all families execute through runKnowledgeBenchmarkSuite().

Verification

• pnpm exec tsc --noEmit
• pnpm exec vitest run tests/benchmarks.test.ts — 5 passed
• pnpm lint
• git diff --check
• pnpm exec vitest run — 264 passed, 12 skipped
• pnpm build
• File-backed proof: /tmp/agent-knowledge-industry-smoke-proof-2/knowledge-benchmark-report.json has 13 cases, 13 cells, 0 failures, mean score 1.0, and every family represented.

[tangletools]

✅ Auto-approved drewstone PR — a95bb687

This PR was opened by the trusted drewstone account.
The full PR reviewer audit still runs separately and will publish findings if it detects issues.

_{tangletools · auto-approval · reason: drewstone_author · 2026-07-08T01:24:48Z}