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/bqas/golden_tests/workflow_tests.yaml

@@ -0,0 +1,161 @@
+# Golden Test Suite - Multi-Turn Workflow Tests
+# Tests for conversation context and follow-up handling
+
+workflow_tests:
+  - id: WF-001
+    name: "Worksheet Creation Workflow"
+    steps:
+      - input: "Erstelle Arbeitsblatt zu Bruchrechnung"
+        expected_intent: "worksheet_generate"
+        expected_response_contains: "Arbeitsblatt"
+
+      - input: "Mit 5 Aufgaben"
+        expected_intent: "worksheet_modify"
+        context_required: true
+        expected_slots:
+          task_count: 5
+
+      - input: "Zwei Schwierigkeitsstufen bitte"
+        expected_intent: "worksheet_differentiate"
+        context_required: true
+
+      - input: "Fertig, speichern"
+        expected_intent: "confirmation"
+        expected_response_contains: "gespeichert"
+
+  - id: WF-002
+    name: "Student Observation to Letter"
+    steps:
+      - input: "Notiz zu Max: heute dreimal gestört"
+        expected_intent: "student_observation"
+        expected_response_contains: "notiert"
+
+      - input: "Mach daraus einen Elternbrief"
+        expected_intent: "parent_letter"
+        context_required: true
+        expected_slots:
+          source: "previous_observation"
+
+  - id: WF-003
+    name: "Quiz with Refinement"
+    steps:
+      - input: "Vokabeltest erstellen"
+        expected_intent: "quiz_generate"
+
+      - input: "Lektion 5"
+        expected_intent: "context_addition"
+        context_required: true
+
+      - input: "Mit Loesungsbogen"
+        expected_intent: "quiz_modify"
+        context_required: true
+        expected_slots:
+          with_solutions: true
+
+  - id: WF-004
+    name: "Reminder Chain"
+    steps:
+      - input: "Erinner mich morgen an Elterngespraech"
+        expected_intent: "reminder_schedule"
+
+      - input: "Und uebermorgen an die Nachbereitung"
+        expected_intent: "reminder_schedule"
+        context_required: true
+
+  - id: WF-005
+    name: "Canvas Editing Session"
+    steps:
+      - input: "Oeffne das Arbeitsblatt von gestern"
+        expected_intent: "document_open"
+
+      - input: "Ueberschrift groesser"
+        expected_intent: "canvas_edit"
+        context_required: true
+
+      - input: "Bild nach links"
+        expected_intent: "canvas_edit"
+        context_required: true
+
+      - input: "Drucklayout A4"
+        expected_intent: "canvas_layout"
+        context_required: true
+
+      - input: "Als PDF exportieren"
+        expected_intent: "export"
+
+  - id: WF-006
+    name: "Correction Assistance"
+    steps:
+      - input: "Zeig Operatoren fuer Textanalyse"
+        expected_intent: "operator_checklist"
+        is_actionable: false
+
+      - input: "Was sagt der EH dazu?"
+        expected_intent: "eh_passage"
+        context_required: true
+        is_actionable: false
+
+      - input: "Formuliere kurzes Feedback"
+        expected_intent: "feedback_suggest"
+
+  - id: WF-007
+    name: "Error Recovery"
+    steps:
+      - input: "Arbeitsblatt mit Vokablen"
+        expected_intent: "worksheet_generate"
+
+      - input: "Nein, mit Grammatik"
+        expected_intent: "correction"
+        context_required: true
+        expected_slots:
+          new_topic: "Grammatik"
+
+      - input: "Genau, das meinte ich"
+        expected_intent: "confirmation"
+
+  - id: WF-008
+    name: "Multi-Class Communication"
+    steps:
+      - input: "Nachricht an 7a"
+        expected_intent: "class_message"
+        expected_slots:
+          class_name: "7a"
+
+      - input: "Auch an 7b"
+        expected_intent: "class_message"
+        context_required: true
+        expected_slots:
+          class_name: "7b"
+
+      - input: "Hausaufgaben bis Freitag abgeben"
+        expected_intent: "context_addition"
+        context_required: true
+
+  - id: WF-009
+    name: "Weekly Summary"
+    steps:
+      - input: "Was habe ich diese Woche notiert?"
+        expected_intent: "task_summary"
+        is_actionable: false
+
+      - input: "Zeig nur die zu Max"
+        expected_intent: "filter"
+        context_required: true
+        expected_slots:
+          filter_student: "Max"
+
+  - id: WF-010
+    name: "Interruption Handling"
+    steps:
+      - input: "Erstelle Arbeitsblatt zu"
+        expected_intent: "incomplete"
+
+      - input: "Moment, erst Notiz zu Lisa"
+        expected_intent: "interrupt"
+
+      - input: "Lisa war heute super"
+        expected_intent: "student_observation"
+
+      - input: "Jetzt weiter mit dem Arbeitsblatt"
+        expected_intent: "resume"
+        context_required: true