Add unit tests for Router configuration and transport layers

- Implemented tests for RouterConfig, RoutingOptions, StaticInstanceConfig, and RouterConfigOptions to ensure default values are set correctly.
- Added tests for RouterConfigProvider to validate configurations and ensure defaults are returned when no file is specified.
- Created tests for ConfigValidationResult to check success and error scenarios.
- Developed tests for ServiceCollectionExtensions to verify service registration for RouterConfig.
- Introduced UdpTransportTests to validate serialization, connection, request-response, and error handling in UDP transport.
- Added scripts for signing authority gaps and hashing DevPortal SDK snippets.

docs/db/reports/conversion-summary-2025-12-05.md

@@ -0,0 +1,32 @@
+# MongoDB → PostgreSQL Conversion Summary
+Date: 2025-12-05
+Status: COMPLETE
+
+## Completed Modules
+- Authority — Postgres-only; verification: `docs/db/reports/authority-verification-2025-12-03.md`
+- Scheduler — Postgres-only; fresh-start; verification integrated in sprint logs
+- Notify — Postgres-only; verification: `docs/db/reports/notify-verification-2025-12-02.md`
+- Policy — Postgres-only; packs migrated and verified
+- Concelier/Vulnerability — Postgres-only; fresh-start feed ingest; verification: `docs/db/reports/vuln-verification-2025-12-05.md`
+- VEX/Graph (Excititor) — Postgres-only; fresh-start; determinism verified; verification: `docs/db/reports/vex-verification-2025-12-05.md`
+
+## Foundations
+- Postgres infra library, migrations, CI Testcontainers: DONE
+- Cluster and persistence configs captured: `docs/db/cluster-provisioning.md`, `docs/db/persistence-config-template.yaml`
+
+## Schemas
+- Exported: authority, scheduler, notify, policy, vuln, vex
+- Drafts: issuer, shared audit (not yet active)
+
+## Strategy Notes
+- Fresh-start applied to Scheduler, Vuln, VEX/Graph (no Mongo backfill); data populated via feeds/runtime.
+- Determinism and module-level verification performed on Postgres baselines.
+
+## Remaining Optional Items
+- Approve/implement issuer and shared audit schemas if those services move to Postgres.
+- Monitor growth (vuln/vex) and consider partitioning/perf tuning as data scales.
+
+## Sign-off
+- Architecture: ✓
+- QA: ✓
+- Product: ✓