engine-v1.64.0

What's Changed

• fix(engine): serve job reconciliation + route/auth probes + envelope fallbacks; harden MCP draft writes by @hugocorreia90 in #1081
• fix(engine): governor queue lists real pending plans; brief dedup; audit reads persisted verify rows by @hugocorreia90 in #1082
• fix(sdk,engine): make client parsing match the real wire; close shadow drift; complete generated barrel by @hugocorreia90 in #1085
• docs: align reuse/retry/gc docs with shipped behavior; scrub identifiers and roadmap vocabulary by @hugocorreia90 in #1080
• fix(engine): gc live-head protection + column-skip liveness/escape-hatch gates by @hugocorreia90 in #1083
• fix: bug and performance fixes across sdk, engine, dagster, and vscode by @hugocorreia90 in #1086
• fix(engine): enforce freeze/budgets at every policy seam (auto-apply, promote, empty-diff, gc/backfill) by @hugocorreia90 in #1084
• fix: review pass over the 11-wave program — replay, retry/containment, backfill, governor, verifier, dagster by @hugocorreia90 in #1087
• fix(engine): agent-policy tranche-4 — backfill execute-from-owned, effective-mask + roles relaxations, source-schema snapshot plumbing by @hugocorreia90 in #1088
• fix: UI staleness/desync bugs + stampede token uniqueness + doc corrections by @hugocorreia90 in #1091
• test: deflake real-clock timing races in fivetran + drift-diagnostics tests by @hugocorreia90 in #1092
• fix(engine): validate metadata data_type in SELECT; escape backslash in Snowflake tags by @hugocorreia90 in #1094
• fix: fail closed on doctor exit-3, unparseable checks, skipped runs, and unknown severities by @hugocorreia90 in #1096
• perf(engine): move blocking file I/O off tokio workers in adapter/LSP paths by @hugocorreia90 in #1097
• test(engine): deflake api parity test against retryable 503 engine_busy by @hugocorreia90 in #1098
• perf(engine): move remaining blocking I/O off async workers in LSP + MCP by @hugocorreia90 in #1099
• perf(engine): drive StateStore off tokio workers on the concurrent run path by @hugocorreia90 in #1100
• perf: plugin efficiency + health pass (rocky-sdk, dagster-rocky, vscode) by @hugocorreia90 in #1101
• feat(engine): warehouse replay — re-execute content-addressed runs with bit-exact verification by @hugocorreia90 in #1102
• feat(engine): rocky restore — rebuild evicted artifacts from tombstones with bit-exact verification by @hugocorreia90 in #1103
• chore: release engine v1.64.0, sdk v0.7.0, dagster v1.60.0, vscode v1.34.4 by @hugocorreia90 in #1104

Full Changelog: engine-v1.63.0...engine-v1.64.0