Add call graph fixtures for various languages and scenarios

- Introduced `all-edge-reasons.json` to test edge resolution reasons in .NET.
- Added `all-visibility-levels.json` to validate method visibility levels in .NET.
- Created `dotnet-aspnetcore-minimal.json` for a minimal ASP.NET Core application.
- Included `go-gin-api.json` for a Go Gin API application structure.
- Added `java-spring-boot.json` for the Spring PetClinic application in Java.
- Introduced `legacy-no-schema.json` for legacy application structure without schema.
- Created `node-express-api.json` for an Express.js API application structure.

docs/airgap/advisory-implementation-roadmap.md

@@ -2,7 +2,7 @@
 
 **Source Advisory:** 14-Dec-2025 - Offline and Air-Gap Technical Reference
 **Document Version:** 1.0
-**Last Updated:** 2025-12-14
+**Last Updated:** 2025-12-15
 
 ---
 
@@ -112,17 +112,14 @@ src/AirGap/
 │   │   └── QuarantineOptions.cs             # Sprint 0338
 │   ├── Telemetry/
 │   │   ├── OfflineKitMetrics.cs             # Sprint 0341
-│   │   └── OfflineKitLogFields.cs           # Sprint 0341
-│   ├── Audit/
-│   │   └── OfflineKitAuditEmitter.cs        # Sprint 0341
+│   │   ├── OfflineKitLogFields.cs           # Sprint 0341
+│   │   └── OfflineKitLogScopes.cs           # Sprint 0341
 │   ├── Reconciliation/
 │   │   ├── ArtifactIndex.cs                 # Sprint 0342
 │   │   ├── EvidenceCollector.cs             # Sprint 0342
 │   │   ├── DocumentNormalizer.cs            # Sprint 0342
 │   │   ├── PrecedenceLattice.cs             # Sprint 0342
 │   │   └── EvidenceGraphEmitter.cs          # Sprint 0342
-│   └── OfflineKitReasonCodes.cs             # Sprint 0341
-
 src/Scanner/
 ├── __Libraries/StellaOps.Scanner.Core/
 │   ├── Configuration/
@@ -136,7 +133,7 @@ src/Scanner/
 
 src/Cli/
 ├── StellaOps.Cli/
-│   └── Commands/
+│   ├── Commands/
 │       ├── Offline/
 │       │   ├── OfflineCommandGroup.cs       # Sprint 0339
 │       │   ├── OfflineImportHandler.cs      # Sprint 0339
@@ -144,11 +141,13 @@ src/Cli/
 │       │   └── OfflineExitCodes.cs          # Sprint 0339
 │       └── Verify/
 │           └── VerifyOfflineHandler.cs      # Sprint 0339
+│   └── Output/
+│       └── OfflineKitReasonCodes.cs         # Sprint 0341
 
 src/Authority/
 ├── __Libraries/StellaOps.Authority.Storage.Postgres/
 │   └── Migrations/
-│       └── 003_offline_kit_audit.sql        # Sprint 0341
+│       └── 004_offline_kit_audit.sql        # Sprint 0341
 ```
 
 ### Database Changes
@@ -226,6 +225,8 @@ src/Authority/
 6. Implement audit repository and emitter
 7. Create Grafana dashboard
 
+> Blockers: Prometheus `/metrics` endpoint hosting and audit emitter call-sites await an owning Offline Kit import/activation flow (`POST /api/offline-kit/import`).
+
 **Exit Criteria:**
 - [ ] Operators can import/verify kits via CLI
 - [ ] Metrics are visible in Prometheus/Grafana