refactor: Jitsi/Matrix/Voice von Core übernommen, Camunda/BPMN gelöscht, Kommunikation-Nav

- Voice-Service von Core nach Lehrer verschoben (bp-lehrer-voice-service)
- 4 Jitsi-Services + 2 Synapse-Services in docker-compose.yml aufgenommen
- Camunda komplett gelöscht: workflow pages, workflow-config.ts, bpmn-js deps
- CAMUNDA_URL aus backend-lehrer environment entfernt
- Sidebar: Kategorie "Compliance SDK" + "Katalogverwaltung" entfernt
- Sidebar: Neue Kategorie "Kommunikation" mit Video & Chat, Voice Service, Alerts

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

voice-service/tests/test_sessions.py

@@ -0,0 +1,94 @@
+"""
+Tests for Session API
+"""
+import pytest
+
+
+class TestSessionAPI:
+    """Tests for session management."""
+
+    def test_health_check(self, client):
+        """Test health endpoint returns healthy status."""
+        response = client.get("/health")
+        assert response.status_code == 200
+        data = response.json()
+        assert data["status"] == "healthy"
+        assert data["service"] == "voice-service"
+        assert data["dsgvo_compliance"]["audio_persistence"] is False
+
+    def test_root_endpoint(self, client):
+        """Test root endpoint returns service info."""
+        response = client.get("/")
+        assert response.status_code == 200
+        data = response.json()
+        assert data["service"] == "Breakpilot Voice Service"
+        assert "endpoints" in data
+        assert data["privacy"]["audio_stored"] is False
+
+    def test_create_session(self, client):
+        """Test session creation."""
+        response = client.post(
+            "/api/v1/sessions",
+            json={
+                "namespace_id": "test-ns-12345678",
+                "key_hash": "sha256:eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHg=",  # 32 bytes base64
+                "device_type": "pwa",
+                "client_version": "1.0.0",
+            },
+        )
+        assert response.status_code == 200
+        data = response.json()
+        assert "id" in data
+        assert data["namespace_id"] == "test-ns-12345678"
+        assert data["status"] == "created"
+        assert "websocket_url" in data
+
+    def test_create_session_invalid_key_hash(self, client):
+        """Test session creation with invalid key hash."""
+        response = client.post(
+            "/api/v1/sessions",
+            json={
+                "namespace_id": "test-ns-12345678",
+                "key_hash": "invalid",
+                "device_type": "pwa",
+            },
+        )
+        assert response.status_code == 401
+        assert "Invalid encryption key hash" in response.json()["detail"]
+
+    def test_get_session_not_found(self, client):
+        """Test getting non-existent session."""
+        response = client.get("/api/v1/sessions/nonexistent-session")
+        assert response.status_code == 404
+
+    def test_session_lifecycle(self, client):
+        """Test full session lifecycle."""
+        # Create session
+        create_response = client.post(
+            "/api/v1/sessions",
+            json={
+                "namespace_id": "test-ns-lifecycle",
+                "key_hash": "sha256:eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHg=",
+            },
+        )
+        assert create_response.status_code == 200
+        session_id = create_response.json()["id"]
+
+        # Get session
+        get_response = client.get(f"/api/v1/sessions/{session_id}")
+        assert get_response.status_code == 200
+        assert get_response.json()["id"] == session_id
+
+        # Get session stats
+        stats_response = client.get(f"/api/v1/sessions/{session_id}/stats")
+        assert stats_response.status_code == 200
+        assert "message_count" in stats_response.json()
+
+        # Delete session
+        delete_response = client.delete(f"/api/v1/sessions/{session_id}")
+        assert delete_response.status_code == 200
+        assert delete_response.json()["status"] == "closed"
+
+        # Verify session is gone
+        get_again = client.get(f"/api/v1/sessions/{session_id}")
+        assert get_again.status_code == 404