grid_engine 0.3.0-rc.4

Tree engine for the_grid — genesis_tree reconciles the running system: build(observed), mount = spawn, unmount = kill.

0.3.0-rc.4

• Breaking: operatorRulingMetadata gains a REQUIRED evidenceSession named parameter. Migration: pass the session id whose artifacts the ruling is evidenced by — operatorRulingMetadata(nodePath, grade: g, rationale: r, evidenceSession: sessionId). Rulings are now scoped to the generation they addressed, so a prior round's ruling can no longer merge into a fresh round's identical node path (tg-04tj).
• The rework cap counts only rounds that reached a VERDICT: a spec-readiness HOLD, where no specify agent ran and no committee graded, no longer spends budget (tg-04tj, completing tg-9q58).
• MountEligibilityPredicate / MountEligibilityDecision (MountEligible / MountRefused): an injectable predicate consulted at the mount boundary, with edge-triggered work.mountEligibilityRefused / work.mountEligibilityRestored flares naming the refused clause. ServiceBundle gains mountEligibility. The engine supplies the SEAM only — concrete clauses come from the composing assets pack (tg-8900).
• Route verdicts persist through CapabilityHostState._persistAdvance / _persistEscalate so a round's verdict evidence is durable (tg-04tj).

0.3.0-rc.3

• Breaking: the kMaxReworkRounds budget now counts only rounds that reached a durable verdict; verdict-less infrastructure losses retain history but do not spend rework budget (tg-9q58).
• Breaking (tg-1fa2.5): the provider layer — Provider<T> is a MOUNTED seed (SingleChildStatefulSeed): create: runs once per mount (tree-owned, tree-disposed), .value adopts without ownership; ProviderScope is the availability registry (a watch<T>() miss parks the dependent and a later provider mount rebuilds it); read<T>() never registers. Kind is fixed for a branch's lifetime — both create/value flips throw.

0.3.0-rc.2

• A failed molecule pour FLARES (session.moleculePourFailed) and parks the session at a durable gate (tg-aec) — both the fresh-mint and adopted-orphan paths; the silent inert-session class is closed.
• FederatedSnapshotSource judges ready-staleness by AGE (readyStaleAge) from the live source heartbeat, with rising-edge sync.memberStaleByAge/sync.memberRecovered flares (tg-zd4v).
• The wedge alarm samples LAST and ALWAYS in StationDriver.afterFlush — a throwing scan can no longer silence the stall detector (tg-60n).
• A throwing rebuild no longer decapitates the flush tick (tg-60n, #154).

0.3.0-rc.1

• Breaking: tracks beads_dart 0.2.0-rc.1 and grid_runtime 0.2.0-rc.1 — the bd export retirement and StationBeadWriter(reader:). No engine API change of its own; the constraint bump is the breaking part for resolvers.
• Changed: lifecycle reads are observed through the probe-reader seam.

0.2.0

• Breaking: diagnostics ride the genesis_foundation substrate — the local Diagnosable mixin and DiagnosticsBuilder class are retired in favor of foundation's Diagnosticable/DiagnosticsBuilder (a GridDiagnosticable marker and the typed addTyped adapter remain). Seed hooks override debugFillProperties(DiagnosticsBuilder).
• State-owned cross-repo link beads gate the ready frontier (fail-closed).

0.1.2

• Family coherence release: step results filter by active incarnation (live route joins, the_grid#139); current session-scope surface.

0.1.1

• Every circuit step now mounts as a tree node (the_grid #105).
• Fixed: rework mint gated on fresh readiness; rework remint eligibility derived from snapshots; circuit round threaded into capability args; derived rework caps parked at the route gate (the_grid #107, #116, #118, #119).

0.1.0

• Initial release: genesis_tree-based tree engine reconciling the running system (build(observed), mount = spawn, unmount = kill).