v3.4.0

## What's Changed
* Restore production coverage for unique equality batches by @xav-db in https://github.com/HelixDB/helix-db/pull/1119
* Skip unchanged vector-cache hydration by @xav-db in https://github.com/HelixDB/helix-db/pull/1115
* Fix edge-stream drop silently leaving edges undeleted by @xav-db in https://github.com/HelixDB/helix-db/pull/1114
* Fix edge-drop stack overflow and test inventory by @xav-db in https://github.com/HelixDB/helix-db/pull/1120
* fix(db): key DISTINCT on storage value identity, not Debug strings by @nkootstra in https://github.com/HelixDB/helix-db/pull/1110
* Release TypeScript SDK 3.1.0 with structured transaction errors by @matthewsanetra in https://github.com/HelixDB/helix-db/pull/1102
* Stop eligible query pipelines when downstream limits are satisfied by @xav-db in https://github.com/HelixDB/helix-db/pull/1112
* fix(ts-sdk): map out-of-range datetimes to QueryError by @danielgaskins in https://github.com/HelixDB/helix-db/pull/1122
* Fix permanent index cleanup failures and validation diagnostics by @xav-db in https://github.com/HelixDB/helix-db/pull/1078
* fix(planner): keep implementing queued expressions after the time budget expires by @nkootstra in https://github.com/HelixDB/helix-db/pull/1113
* fix(sdks): reject invalid byte values by @danielgaskins in https://github.com/HelixDB/helix-db/pull/1124
* fix(ci,cli): replace withdrawn MinIO images with SeaweedFS by @xav-db in https://github.com/HelixDB/helix-db/pull/1136
* perf(planner,db): answer post-expansion filters from index membership by @xav-db in https://github.com/HelixDB/helix-db/pull/1130
* perf(db): overlap vector row reads and serve the vector memory cache on readers and newer snapshots by @xav-db in https://github.com/HelixDB/helix-db/pull/1131
* perf(db): bounded, sound traversal-scoped vector search with exact scans for mid-size scopes by @xav-db in https://github.com/HelixDB/helix-db/pull/1137
* perf(db): retain the vector build planning cache across backfill steps by @xav-db in https://github.com/HelixDB/helix-db/pull/1132
* feat(server): opt-in local disk cache via HELIX_DISK_CACHE_DIR by @xav-db in https://github.com/HelixDB/helix-db/pull/1133
* test(db): scoped search benchmark harness, recall gate and coverage metadata by @xav-db in https://github.com/HelixDB/helix-db/pull/1138
* docs: restructure navigation, search guides, and CLI reference by @xav-db in https://github.com/HelixDB/helix-db/pull/1129
* docs: add a Learn tab with a learning center for search, graph, and memory topics by @xav-db in https://github.com/HelixDB/helix-db/pull/1139
* fix(python-sdk): convert datetimes to exact milliseconds by @breken-ai in https://github.com/HelixDB/helix-db/pull/1126
* fix(graph-algorithms): count parallel edges once in betweenness paths by @breken-ai in https://github.com/HelixDB/helix-db/pull/1127
* fix(python-sdk): render datetimes exactly and map out-of-range millis to QueryError by @breken-ai in https://github.com/HelixDB/helix-db/pull/1128
* feat(cli): ID-free Cloud commands, consistent cliclack output, and global --json by @xav-db in https://github.com/HelixDB/helix-db/pull/1140
* fix(planner): replace the wall-clock exploration budget with a rule-fire budget by @xav-db in https://github.com/HelixDB/helix-db/pull/1141
* docs: make the README faster to scan by @xav-db in https://github.com/HelixDB/helix-db/pull/1143
* docs: rewrite Learn pages for newcomers by @xav-db in https://github.com/HelixDB/helix-db/pull/1142
* fix(planner): price index membership by what the interpreter reads by @xav-db in https://github.com/HelixDB/helix-db/pull/1145
* fix(planner): retain equality index seeds with residual filters by @xav-db in https://github.com/HelixDB/helix-db/pull/1125
* Release CLI 3.4.0 and Docker v0.0.7 by @xav-db in https://github.com/HelixDB/helix-db/pull/1146

## New Contributors
* @danielgaskins made their first contribution in https://github.com/HelixDB/helix-db/pull/1122
* @breken-ai made their first contribution in https://github.com/HelixDB/helix-db/pull/1126

**Full Changelog**: https://github.com/HelixDB/helix-db/compare/v3.3.0...v3.4.0