fix: Restore all files lost during destructive rebase

A previous `git pull --rebase origin main` dropped 177 local commits,
losing 3400+ files across admin-v2, backend, studio-v2, website,
klausur-service, and many other services. The partial restore attempt
(660295e2) only recovered some files.

This commit restores all missing files from pre-rebase ref 98933f5e
while preserving post-rebase additions (night-scheduler, night-mode UI,
NightModeWidget dashboard integration).

Restored features include:
- AI Module Sidebar (FAB), OCR Labeling, OCR Compare
- GPU Dashboard, RAG Pipeline, Magic Help
- Klausur-Korrektur (8 files), Abitur-Archiv (5+ files)
- Companion, Zeugnisse-Crawler, Screen Flow
- Full backend, studio-v2, website, klausur-service
- All compliance SDKs, agent-core, voice-service
- CI/CD configs, documentation, scripts

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

voice-service/.env.example

@@ -0,0 +1,59 @@
+# Voice Service Environment Variables
+# Copy this file to .env and adjust values
+
+# Service Configuration
+PORT=8091
+ENVIRONMENT=development
+DEBUG=false
+
+# JWT Authentication (REQUIRED - load from HashiCorp Vault)
+# vault kv get -field=secret secret/breakpilot/auth/jwt
+JWT_SECRET=
+JWT_ALGORITHM=HS256
+JWT_EXPIRATION_HOURS=24
+
+# PostgreSQL (REQUIRED - load from HashiCorp Vault)
+# vault kv get -field=url secret/breakpilot/database/postgres
+DATABASE_URL=
+
+# Valkey (Redis-fork) Session Cache
+VALKEY_URL=redis://valkey:6379/2
+SESSION_TTL_HOURS=24
+TASK_TTL_HOURS=168
+
+# PersonaPlex Configuration (Production GPU)
+PERSONAPLEX_ENABLED=false
+PERSONAPLEX_WS_URL=ws://host.docker.internal:8998
+PERSONAPLEX_MODEL=personaplex-7b
+PERSONAPLEX_TIMEOUT=30
+
+# Task Orchestrator
+ORCHESTRATOR_ENABLED=true
+ORCHESTRATOR_MAX_CONCURRENT_TASKS=10
+
+# Fallback LLM (Ollama for Development)
+FALLBACK_LLM_PROVIDER=ollama
+OLLAMA_BASE_URL=http://host.docker.internal:11434
+OLLAMA_VOICE_MODEL=qwen2.5:32b
+OLLAMA_TIMEOUT=120
+
+# Klausur Service Integration
+KLAUSUR_SERVICE_URL=http://klausur-service:8086
+
+# Audio Configuration
+AUDIO_SAMPLE_RATE=24000
+AUDIO_FRAME_SIZE_MS=80
+AUDIO_PERSISTENCE=false
+
+# Encryption Configuration
+ENCRYPTION_ENABLED=true
+NAMESPACE_KEY_ALGORITHM=AES-256-GCM
+
+# TTL Configuration (DSGVO Data Minimization)
+TRANSCRIPT_TTL_DAYS=7
+TASK_STATE_TTL_DAYS=30
+AUDIT_LOG_TTL_DAYS=90
+
+# Rate Limiting
+MAX_SESSIONS_PER_USER=5
+MAX_REQUESTS_PER_MINUTE=60