Spec 119: Drift cutover to Baseline Compare (golden master) (#144)
Implements Spec 119 (Drift Golden Master Cutover):
- Baseline Compare is the only drift writer (`source = baseline.compare`).
- Drift findings now store diff-compatible `evidence_jsonb` (summary.kind, baseline/current policy_version_id refs, fidelity + provenance).
- Findings UI renders one-sided diffs for `missing_policy`/`unexpected_policy` when a single ref exists; otherwise shows explicit “diff unavailable”.
- Removes legacy drift generator runtime (jobs/services/UI) and related tests.
- Adds one-time migration to delete legacy drift findings (`finding_type=drift` where source is null or != baseline.compare).
- Scopes baseline capture & landing duplicate warnings to latest completed inventory sync.
- Canonicalizes compliance `scheduledActionsForRule` drift signal and keeps legacy snapshots comparable.
Tests:
- `vendor/bin/sail artisan test --compact` (full suite per tasks)
- Focused pack: BaselinePolicyVersionResolverTest, BaselineCompareDriftEvidenceContractTest, DriftFindingDiffUnavailableTest, LegacyDriftFindingsCleanupMigrationTest, ComplianceNoncomplianceActionsDriftTest
Notes:
- Livewire v4+ / Filament v5 compatible (no legacy APIs).
- No new external dependencies.
Co-authored-by: Ahmed Darrazi <ahmed.darrazi@live.de>
Reviewed-on: #144
ahmido
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