feat: Analyse-Module auf 100% — Backend-Wiring, Proxy-Route, DELETE-Endpoints

7 Analyse-Module (Requirements, Controls, Evidence, Risk Matrix, AI Act,
Audit Checklist, Audit Report) von ~35% auf 100% gebracht:

- Catch-all Proxy-Route /api/sdk/v1/compliance/[[...path]] erstellt
- DELETE-Endpoints fuer Risks und Evidence im Backend hinzugefuegt
- Alle 7 Frontend-Seiten ans Backend gewired (Fetch, PUT, POST, DELETE)
- Mock-Daten durch Backend-Daten ersetzt, Templates als Fallback
- Loading-Skeletons und Error-Banner hinzugefuegt
- AI Act: Add-System-Form + assess-risk API-Integration
- Audit Report: API-Pfade von /api/admin/ auf /api/sdk/v1/compliance/ korrigiert

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend-compliance/compliance/api/evidence_routes.py

@@ -147,6 +147,30 @@ async def create_evidence(
     )
 
 
+@router.delete("/evidence/{evidence_id}")
+async def delete_evidence(
+    evidence_id: str,
+    db: Session = Depends(get_db),
+):
+    """Delete an evidence record."""
+    evidence = db.query(EvidenceDB).filter(EvidenceDB.id == evidence_id).first()
+    if not evidence:
+        raise HTTPException(status_code=404, detail=f"Evidence {evidence_id} not found")
+
+    # Remove artifact file if it exists
+    if evidence.artifact_path and os.path.exists(evidence.artifact_path):
+        try:
+            os.remove(evidence.artifact_path)
+        except OSError:
+            logger.warning(f"Could not remove artifact file: {evidence.artifact_path}")
+
+    db.delete(evidence)
+    db.commit()
+
+    logger.info(f"Evidence {evidence_id} deleted")
+    return {"success": True, "message": f"Evidence {evidence_id} deleted"}
+
+
 @router.post("/evidence/upload")
 async def upload_evidence(
     control_id: str = Query(...),

backend-compliance/compliance/api/risk_routes.py

@@ -164,6 +164,24 @@ async def update_risk(
     )
 
 
+@router.delete("/risks/{risk_id}")
+async def delete_risk(
+    risk_id: str,
+    db: Session = Depends(get_db),
+):
+    """Delete a risk."""
+    repo = RiskRepository(db)
+    risk = repo.get_by_risk_id(risk_id)
+    if not risk:
+        raise HTTPException(status_code=404, detail=f"Risk {risk_id} not found")
+
+    db.delete(risk)
+    db.commit()
+
+    logger.info(f"Risk {risk_id} deleted")
+    return {"success": True, "message": f"Risk {risk_id} deleted"}
+
+
 @router.get("/risks/matrix", response_model=RiskMatrixResponse)
 async def get_risk_matrix(db: Session = Depends(get_db)):
     """Get risk matrix data for visualization."""