v0.6.1

## What's Changed
* docs: add 0.6.0 changelog and release blog post by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1458
* chore: remove self-driving-agents CLI — moved to own repo by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1461
* fix(retain): reduce memory pressure by clearing content references after use by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1455
* fix(openclaw): mission semantics + retainQueue config whitelist by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1473
* feat(claude-code): create-agent skill understands SDA layout by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1475
* chore(deps): bump pg0-embedded to >=0.14.0 by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1476
* feat(openclaw): drop redundant before_agent_start + add debugPerfTiming by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1477
* feat(control-plane): enrich bank dropdown with memory stats by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1479
* feat(engine): optional read-only backend for recall queries by @cdbartholomew in https://github.com/vectorize-io/hindsight/pull/1460
* fix(claude-code): bootstrap 'mcp' Python package on first run by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1485
* feat(perf): publish perf-test results to external dashboard by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1474
* fix(packaging): hard-pin meta packages to matching hindsight-api-slim by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1486
* docs(claude-code): document knowledge tools and subagent skill by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1487
* ci(release): add --provenance to npm publish (required for n8n Verified) by @benfrank241 in https://github.com/vectorize-io/hindsight/pull/1491
* chore: stabilize CI — docs-skill pre-commit hook + retain dict-mutation fix by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1490
* fix(docker): chmod 755 /home/hindsight for --user UID:GID support by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1493
* feat(cli): add --strategy flag to memory retain-files by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1494
* blog: Your Claude Code Subagents Don't Share What They Learn by @benfrank241 in https://github.com/vectorize-io/hindsight/pull/1456
* docs(cli): document --strategy flag for memory retain-files by @r266-tech in https://github.com/vectorize-io/hindsight/pull/1499
* docs(env): document HINDSIGHT_API_READ_DATABASE_URL in .env.example by @r266-tech in https://github.com/vectorize-io/hindsight/pull/1496
* ci: cosign-sign published GHCR images (manual workflow) by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1495
* ci: cosign-sign release images + document verification by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1502
* Add AlloyDB ScaNN vector index support by @can1357 in https://github.com/vectorize-io/hindsight/pull/1459
* fix(worker): probe pg_proc before calling optional schemas_with_pending_work() by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1503
* docs(installation): bake custom models into image instead of PVC by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1504
* follow-up to #1459: AlloyDB ScaNN docs + review-nit cleanups by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1506
* feat: add map-type entity labels for structured entity extraction by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1505
* fix(openclaw): pass enableKnowledgeTools through getPluginConfig by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1507
* docs(entity-labels): document type="map" structured entity groups by @r266-tech in https://github.com/vectorize-io/hindsight/pull/1508
* perf(worker): scope progress-stats fanout via existing routine by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1509
* fix(n8n): drop hindsight-client runtime dep, inline HTTP calls by @benfrank241 in https://github.com/vectorize-io/hindsight/pull/1513
* fix(openclaw): write hooks.allowConversationAccess in setup wizard by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1514
* fix(openclaw): reuse existing token + URL when re-running setup wizard by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1518
* feat(claude-code): resolve git worktrees + explicit directory-bank mapping by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1520
* fix(openclaw): backfill plugins.allow with hindsight-openclaw in setup wizard by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1521
* fix(engine): remove multiplicative retry layers in fact extraction by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1516
* docs: surface stable worker_id guidance and zombie-operation recovery by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1522
* fix(daemon): replace os.fork() with subprocess.Popen to fix MPS on macOS by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1519
* blog: n8n Workflows Are Stateless. Hindsight Makes Them Compound. by @benfrank241 in https://github.com/vectorize-io/hindsight/pull/1511
* fix(reflect): read document metadata from retain params by @nepenth in https://github.com/vectorize-io/hindsight/pull/1523
* fix(worker): propagate child error_message to failed batch_retain parent by @cdbartholomew in https://github.com/vectorize-io/hindsight/pull/1527
* fix(claude-code): use detail=metadata for agent_knowledge_list_pages by @cdbartholomew in https://github.com/vectorize-io/hindsight/pull/1528
* feat(cp): add optional access-key login for Control Plane by @ariel-ai-bot in https://github.com/vectorize-io/hindsight/pull/1530
* feat: add z.ai as LLM provider by @Burgunthy in https://github.com/vectorize-io/hindsight/pull/1529
* feat(openclaw): prepend session-context block to retained transcripts by @kryptt in https://github.com/vectorize-io/hindsight/pull/1439
* fix(cp): improve access-key auth UX and harden middleware by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1533
* docs(zai): document z.ai provider and add default model by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1532
* chore: fix formatting in llm_wrapper.py to pass verify-generated-files by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1534
* perf(locomo): scope CI to a 3-conversation curated subset by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1536
* fix(typescript-client): derive CLIENT_VERSION via tsup define by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1540
* feat(api): add litellmrouter provider for LLM fallback chains by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/1537

## New Contributors
* @can1357 made their first contribution in https://github.com/vectorize-io/hindsight/pull/1459
* @nepenth made their first contribution in https://github.com/vectorize-io/hindsight/pull/1523
* @ariel-ai-bot made their first contribution in https://github.com/vectorize-io/hindsight/pull/1530
* @Burgunthy made their first contribution in https://github.com/vectorize-io/hindsight/pull/1529
* @kryptt made their first contribution in https://github.com/vectorize-io/hindsight/pull/1439

**Full Changelog**: https://github.com/vectorize-io/hindsight/compare/v0.6.0...v0.6.1