v0.4.3

## What's Changed
* fix: pass tenant extension to worker MemoryEngine for correct schema context by @cdbartholomew in https://github.com/vectorize-io/hindsight/pull/236
* fix: run migrations on tenant schemas at startup and harden worker poller by @cdbartholomew in https://github.com/vectorize-io/hindsight/pull/237
* feat: support vertex as llm provider by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/233
* Switch Vertex AI provider to native genai SDK by @cdbartholomew in https://github.com/vectorize-io/hindsight/pull/242
* fix(control-plane): handle undefined response.data in graph route by @slayoffer in https://github.com/vectorize-io/hindsight/pull/239
* feat(cli): add --wait flag for consolidate and --date filter for document list by @slayoffer in https://github.com/vectorize-io/hindsight/pull/244
* fix(control-plane): pass API key to dataplane for tenant auth by @slayoffer in https://github.com/vectorize-io/hindsight/pull/243
* fix(auth): skip tenant auth for all internal background tasks by @slayoffer in https://github.com/vectorize-io/hindsight/pull/240
* feat(mcp): add Bearer token authentication and tenant auth propagation by @slayoffer in https://github.com/vectorize-io/hindsight/pull/241
* chore: remove dead code by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/245
* fix: improve doc on vertexai and mcp by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/247
* fix(docker): add retry logic for ML model downloads by @slayoffer in https://github.com/vectorize-io/hindsight/pull/248
* fix: rename moltbot to openclawd by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/246
* fix: deadlock in worker polling by @nicoloboschi in https://github.com/vectorize-io/hindsight/pull/250


**Full Changelog**: https://github.com/vectorize-io/hindsight/compare/v0.4.2...v0.4.3