v3.15.4: CRDT, caching, GOAP, test-count and schedule fixes

What's New

Correctness fixes for AQE's CRDT memory sync, LLM response caching, embedding
caches, GOAP planning, Vitest test counting and legacy schedules, mostly
contributed by Rudy Celekli. Also includes new
regression tests and a quieter session journal on a full disk.

Fixed

• Expanded Vitest test counts. Code-intelligence test counting now
  includes each case of it.each/test.each on small and medium suites.
  Collection runs in its own process group with a timeout, and large suites
  keep the fast static count. Interrupting the caller (Ctrl-C) or hitting the
  timeout no longer leaves Vitest running or temp folders behind (#890).
• Legacy cron schedules no longer break workflow list. Invalid entries in
  ~/.aqe/schedules.json, including ones whose schedule isn't a string, are
  disabled with a reason instead of making the whole file unreadable. Valid
  schedules are kept exactly (#951).
• CRDT replicas converge reliably (ADR-133):
  • LWW registers now order concurrent writes the same way on every
    replica, using code-unit comparison and treating version 0 as
    "unwritten" (#943);
  • OR-sets resume their tag counters after a restore, so new adds can't
    reuse an old tag and vanish (#945);
  • convergence fingerprints are unambiguous (structured SHA-256) (#949);
  • a peer whose checkpoint is older than the retained delta history gets the
    full state instead of missing changes (#952).
• Content-filter refusals aren't cached by generate(), so a retry isn't
  served a cached empty answer (#946). complete() caching of refusals is
  tracked in #912.
• Nomic embeddings: verified cache entries are namespaced, so unversioned
  legacy entries are recomputed once instead of being reused (#948).
• GOAP planning: actions without a duration estimate count as 1000 ms
  against maxDurationMs, and the duration backfill runs in a single
  transaction (#953, ADR-134).
• Session journal: a full disk no longer logs [AQE] FATAL on every
  flush tick. Entries stay buffered and one warning is shown (#983).

Changed

• Schedules saved by older versions with cron strings the current parser
  rejects (for example @daily or six-field expressions) now show as disabled,
  with the reason in workflow list (#951).
• Guard timing tests have CI headroom sized from measurements, and they still
  catch quadratic slowdowns (#990).
• Rolling upgrades of CRDT memory sync: until every node runs 3.15.4,
  old and new nodes can pick different winners for writes with exactly equal
  timestamps (for example, owner ids a vs B). This settles once all nodes
  are upgraded (#943).
• GOAP plan totals now include the 1000 ms fallback, so tight
  maxDurationMs budgets may reject plans that used to pass (#953).
• New regression tests for saveResults on all 10 domain tools, session
  journal partial writes and init orchestration, ported from Rudy's PRs (#985).

Getting Started

npx agentic-qe init --auto

See CHANGELOG for full details.