Release v3.59.0 — Real AgentDB HNSW search, Grok Build host, npm README image fix · ruvnet/ruflo

Highlights

Real AgentDB HNSW vector search (#4249/#4322): AgentDBBackend now wires the separately-exported agentdb.HNSWIndex directly, replacing the dead getController('hnsw') path that always threw against the real agentdb package and was silently caught on every search. Native search now has correct staleness rejection, safe rebuilds after writes, and exact-cosine fallback on any native-capability failure, missing dependency, dimension mismatch, or filtered query. Follow-up (#4319) added test coverage for the WASM-missing disable path and concurrent index builds.
RaBitQ index now builds automatically (#4318/#4319): previously required a manual build step; now builds on demand with safe fallback to exact search.
New: Grok Build CLI host (#3512): init now supports Grok Build as a first-class agent host alongside Claude Code and Codex.
New: memory tag filtering (#3526): memory list/memory search gained a tag filter, explicit-provider precedence, and an Ollama default model.

Memory delete-sync: AutoMemoryBridge.importFromAutoMemory() now removes entries whose source file/heading was deleted, instead of being additive-only (#4138).
Swarm idle-agent heartbeat false positive: healthy idle agents (no in-flight work) were being marked error and dropped from getAvailableAgents() after 3 missed heartbeat intervals, even though they have no heartbeat producer to begin with (#4320).
Ephemeral-agent termination idempotency: FederationHub.terminateAgent()/completeAgent() could double-count the same agent's completion/failure on a repeated call (shutdown, unregisterSwarm, TTL cleanup, or a retried request) (#4323).
status tasks always printed "No tasks": it sent status: 'all' as a literal filter (matching nothing) and read the wrong field names from task_list's response (#4321).
task_list's total count was computed after applying limit, so it always equaled the page size instead of the real match count (#4324).
metaharness similarity's cost dimension was inert below $0.999 (an algebraic no-op collapsed the whole realistic cost range to 0), and the minor-drift verdict threshold had two disagreeing encodings (#3520).
ruflo-harness now reports the live process instead of just the install (#3521).

Fixed the actual cause of broken images/links on npmjs.com/package/ruflo: a stray repository.directory: "ruflo" field in ruflo/package.json was adding an extra path layer on top of the README content (which is the repo-root README, copied in verbatim at publish time with repo-root-relative paths already). Removed the field to match claude-flow's own repository entry.

@claude-flow/cli@3.59.0, claude-flow@3.59.0, ruflo@3.59.0 — latest/alpha/v3alpha dist-tags all verified on the live registry.
@claude-flow/memory@3.0.8 (standalone, the #4249 fix — not bundled into the 3-package train).