test: restore master baseline CI coverage

[rwmjhb]

Summary

• add the missing embedder-ollama-batch-routing baseline entry to the CI manifest verifier
• align the Ollama batch routing test with the existing /ollama provider-detection contract while keeping random-port mocks
• reset plugin singleton registration state between recall and smart-extractor regression scenarios so later cases do not inherit stale config, hooks, or stores

Root causes fixed

• scripts/verify-ci-test-manifest.mjs was not updated when test/embedder-ollama-batch-routing.test.mjs was added to the CI manifest
• test/embedder-ollama-batch-routing.test.mjs assumed any random loopback port would hit the Ollama native-fetch path, but the implementation only treats :11434 or /ollama URLs as Ollama
• test/recall-text-cleanup.test.mjs and test/smart-extractor-branches.mjs were reusing singleton plugin state across scenarios after the phase-2 singleton work, which caused stale retriever/LLM/store config to leak between cases

Verification

• node scripts/verify-ci-test-manifest.mjs
• node --test test/embedder-ollama-batch-routing.test.mjs
• node --test test/recall-text-cleanup.test.mjs
• node test/smart-extractor-branches.mjs
• npm run test:packaging-and-workflow
• npm run test:llm-clients-and-auth
• npm run test:core-regression
• npm test