feat: Add initial implementation of Vulnerability Resolver Jobs

- Created project for StellaOps.Scanner.Analyzers.Native.Tests with necessary dependencies.
- Documented roles and guidelines in AGENTS.md for Scheduler module.
- Implemented IResolverJobService interface and InMemoryResolverJobService for handling resolver jobs.
- Added ResolverBacklogNotifier and ResolverBacklogService for monitoring job metrics.
- Developed API endpoints for managing resolver jobs and retrieving metrics.
- Defined models for resolver job requests and responses.
- Integrated dependency injection for resolver job services.
- Implemented ImpactIndexSnapshot for persisting impact index data.
- Introduced SignalsScoringOptions for configurable scoring weights in reachability scoring.
- Added unit tests for ReachabilityScoringService and RuntimeFactsIngestionService.
- Created dotnet-filter.sh script to handle command-line arguments for dotnet.
- Established nuget-prime project for managing package downloads.

src/Findings/StellaOps.Findings.Ledger/migrations/002_add_evidence_bundle_ref.sql

@@ -0,0 +1,8 @@
+-- LEDGER-OBS-53-001: persist evidence bundle references alongside ledger entries.
+
+ALTER TABLE ledger_events
+    ADD COLUMN evidence_bundle_ref text NULL;
+
+CREATE INDEX IF NOT EXISTS ix_ledger_events_finding_evidence_ref
+    ON ledger_events (tenant_id, finding_id, recorded_at DESC)
+    WHERE evidence_bundle_ref IS NOT NULL;