Maester embedding pilot pivoted to OpenRouter Qwen3-Embedding-8B

Result

• Branch: wip/openrouter-qwen3-embedding-pilot
• Commit: fd29743 feat(vectorize): pivot pilot to OpenRouter Qwen3 embeddings
• Provider: MAESTER_EMBEDDING_PROVIDER=openrouter
• Model: qwen/qwen3-embedding-8b
• Dimension: 4096
• Profile/property/index: qwen3_8b, embedding_qwen3_8b_4096, maester_chunk_embedding_qwen3_8b_4096

Verification

• py_compile passed.
• scripts/test_vectorize.py passed.
• scripts/backfill_vectors.py --provider openrouter --dim 4096 --dry-run --limit 3 --quiet passed.
• OpenRouter request/response path verified with a local mock OpenAI-compatible embeddings endpoint.
• Neo4j vector index creation/query path verified for maester_chunk_embedding_qwen3_8b_4096.

Pending

• maester-agent/.env currently has no OPENROUTER_API_KEY / MAESTER_OPENROUTER_API_KEY. Real OpenRouter embedding call and pilot backfill are pending key injection.
• data/action_lifecycle_audit.jsonl remains dirty as unrelated runtime audit log and was not committed.