Add unit tests for VexLens normalizer, CPE parser, product mapper, and PURL parser

- Implemented comprehensive tests for VexLensNormalizer including format detection and normalization scenarios.
- Added tests for CpeParser covering CPE 2.3 and 2.2 formats, invalid inputs, and canonical key generation.
- Created tests for ProductMapper to validate parsing and matching logic across different strictness levels.
- Developed tests for PurlParser to ensure correct parsing of various PURL formats and validation of identifiers.
- Introduced stubs for Monaco editor and worker to facilitate testing in the web application.
- Updated project file for the test project to include necessary dependencies.

.gitea/workflows/mock-dev-release.yml

@@ -0,0 +1,30 @@
+name: mock-dev-release
+
+on:
+  push:
+    paths:
+      - deploy/releases/2025.09-mock-dev.yaml
+      - deploy/downloads/manifest.json
+      - ops/devops/mock-release/**
+  workflow_dispatch:
+
+jobs:
+  package-mock-release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Package mock dev artefacts
+        run: |
+          set -euo pipefail
+          mkdir -p out/mock-release
+          cp deploy/releases/2025.09-mock-dev.yaml out/mock-release/
+          cp deploy/downloads/manifest.json out/mock-release/
+          tar -czf out/mock-release/mock-dev-release.tgz -C out/mock-release .
+
+      - name: Upload mock release bundle
+        uses: actions/upload-artifact@v3
+        with:
+          name: mock-dev-release
+          path: out/mock-release/mock-dev-release.tgz