feat: Vollstaendige Demo-Doku — Safety, Manuals, Reports, API-Doc

Neue Word-Dokumente (alle aus Markdown via pandoc):

Safety (docs/safety/):
- HARA.docx — Hazard Analysis & Risk Assessment, leitet ASIL-D ab
- Safety-Case.docx — Argumentation pro Safety Goal (GSN-Stil)
- FMEDA.docx — Pro-Komponente Failure Modes + Diagnostic Coverage
- MISRA-Compliance-Statement.docx — formaler MISRA-Nachweis
- Verification-Report.docx — V-Modell rechte Seite Zusammenfassung
- Tool-Qualification-Cppcheck.docx — Tool-Qual (TCL2/ASIL-D)

Manuals (docs/manuals/):
- User-Manual.docx — Fahrerhandbuch-Auszug
- Service-Manual.docx — Werkstatt-Doku mit UDS-DTCs

CI-Erweiterungen:
- Doxyfile + `make docs` — API-Dokumentation aus src/
- tools/generate_test_report.py + `make test-report` — Test-Summary HTML
- validate.yml: Doxygen + Test-Report als CI-Artefakte
- release.yml: alle Word-Docs + Engineering-Artefakte ins Release-Bundle

README:
- Komplette Tour durch alle Artefakte
- Repo-Struktur-Diagramm aktualisiert

.gitea/workflows/validate.yml

@@ -7,10 +7,7 @@ on:
     branches: [main, develop]
 
 jobs:
-  # Build + Tests laufen auf allen 3 OS, um Portabilitaet zu zeigen.
-  # Linux ist Pflicht, macOS + Windows sind informell (continue-on-error).
-  # Hintergrund: act_runner host-mode hat Edge-Cases auf Mac (Cache-Pfad)
-  # und Windows (busybox-Bash-Konflikt). Linux-Docker-Mode laeuft sauber.
+  # Build + Tests auf allen 3 OS — Linux verbindlich, Mac/Win continue-on-error
   build-test:
     strategy:
       fail-fast: false
@@ -51,8 +48,7 @@ jobs:
         shell: bash
         run: make test
 
-  # Coverage, Traceability, PlantUML laufen nur auf Linux (lcov-Tooling, Artifact-Upload).
-  # needs nur auf ubuntu-latest, damit Mac/Win-Failures Reports nicht blockieren.
+  # Coverage, Traceability, Diagrams, API-Doc, Test-Report — alle auf Linux
   reports:
     runs-on: ubuntu-latest
     needs: build-test
@@ -65,13 +61,17 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y --no-install-recommends \
             build-essential gcc make cppcheck lcov \
-            python3 python3-pip ca-certificates
+            python3 python3-pip ca-certificates \
+            doxygen graphviz
 
       - name: Build + Tests + Coverage
         run: |
           make test
           make coverage
 
+      - name: Test-Summary-Report
+        run: make test-report
+
       - name: Traceability Check
         run: python3 tools/traceability.py check
 
@@ -81,6 +81,15 @@ jobs:
       - name: PlantUML Diagramme rendern
         run: python3 tools/render_plantuml.py
 
+      - name: Doxygen API-Dokumentation
+        run: make docs
+
+      - name: Cppcheck-Report (XML)
+        run: |
+          mkdir -p build
+          cppcheck --enable=all --inconclusive --xml --xml-version=2 \
+            -I src src 2> build/cppcheck-report.xml || true
+
       - name: Upload Coverage HTML
         uses: actions/upload-artifact@v3
         if: always()
@@ -88,6 +97,16 @@ jobs:
           name: coverage-html
           path: build/coverage-html/
 
+      - name: Upload Test-Report
+        uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: test-report
+          path: |
+            build/test-report.html
+            build/test-report.md
+            build/test-output.txt
+
       - name: Upload Traceability Matrix
         uses: actions/upload-artifact@v3
         if: always()
@@ -101,3 +120,17 @@ jobs:
         with:
           name: architecture-diagrams
           path: docs/diagrams/
+
+      - name: Upload Doxygen API-Doc
+        uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: api-doc
+          path: build/api-doc/html/
+
+      - name: Upload Cppcheck-Report
+        uses: actions/upload-artifact@v3
+        if: always()
+        with:
+          name: cppcheck-report
+          path: build/cppcheck-report.xml