[split-required] Split remaining 500-680 LOC files (final batch)

website (17 pages + 3 components):
- multiplayer/wizard, middleware/wizard+test-wizard, communication
- builds/wizard, staff-search, voice, sbom/wizard
- foerderantrag, mail/tasks, tools/communication, sbom
- compliance/evidence, uni-crawler, brandbook (already done)
- CollectionsTab, IngestionTab, RiskHeatmap

backend-lehrer (5 files):
- letters_api (641 → 2), certificates_api (636 → 2)
- alerts_agent/db/models (636 → 3)
- llm_gateway/communication_service (614 → 2)
- game/database already done in prior batch

klausur-service (2 files):
- hybrid_vocab_extractor (664 → 2)
- klausur-service/frontend: api.ts (620 → 3), EHUploadWizard (591 → 2)

voice-service (3 files):
- bqas/rag_judge (618 → 3), runner (529 → 2)
- enhanced_task_orchestrator (519 → 2)

studio-v2 (6 files):
- korrektur/[klausurId] (578 → 4), fairness (569 → 2)
- AlertsWizard (552 → 2), OnboardingWizard (513 → 2)
- korrektur/api.ts (506 → 3), geo-lernwelt (501 → 2)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend-lehrer/alerts_agent/db/enums.py

@@ -0,0 +1,84 @@
+"""
+Enum definitions for Alerts Agent database models.
+"""
+import enum
+
+
+class AlertSourceEnum(str, enum.Enum):
+    """Quelle des Alerts."""
+    GOOGLE_ALERTS_RSS = "google_alerts_rss"
+    GOOGLE_ALERTS_EMAIL = "google_alerts_email"
+    RSS_FEED = "rss_feed"
+    WEBHOOK = "webhook"
+    MANUAL = "manual"
+
+
+class AlertStatusEnum(str, enum.Enum):
+    """Verarbeitungsstatus des Alerts."""
+    NEW = "new"
+    PROCESSED = "processed"
+    DUPLICATE = "duplicate"
+    SCORED = "scored"
+    REVIEWED = "reviewed"
+    ARCHIVED = "archived"
+
+
+class RelevanceDecisionEnum(str, enum.Enum):
+    """Relevanz-Entscheidung."""
+    KEEP = "KEEP"
+    DROP = "DROP"
+    REVIEW = "REVIEW"
+
+
+class FeedTypeEnum(str, enum.Enum):
+    """Typ der Feed-Quelle."""
+    RSS = "rss"
+    EMAIL = "email"
+    WEBHOOK = "webhook"
+
+
+class RuleActionEnum(str, enum.Enum):
+    """Aktionen fuer Regeln."""
+    KEEP = "keep"
+    DROP = "drop"
+    TAG = "tag"
+    EMAIL = "email"
+    WEBHOOK = "webhook"
+    SLACK = "slack"
+
+
+class ImportanceLevelEnum(str, enum.Enum):
+    """5-stufige Wichtigkeitsskala fuer Guided Mode."""
+    INFO = "info"
+    PRUEFEN = "pruefen"
+    WICHTIG = "wichtig"
+    DRINGEND = "dringend"
+    KRITISCH = "kritisch"
+
+
+class AlertModeEnum(str, enum.Enum):
+    """Modus fuer Alert-Nutzung."""
+    GUIDED = "guided"
+    EXPERT = "expert"
+
+
+class MigrationModeEnum(str, enum.Enum):
+    """Wie wurden die Alerts migriert."""
+    FORWARD = "forward"
+    IMPORT = "import"
+    RECONSTRUCTED = "reconstructed"
+
+
+class DigestStatusEnum(str, enum.Enum):
+    """Status der Digest-Generierung."""
+    PENDING = "pending"
+    GENERATING = "generating"
+    SENT = "sent"
+    FAILED = "failed"
+
+
+class UserRoleEnum(str, enum.Enum):
+    """Rolle des Nutzers fuer Template-Empfehlungen."""
+    LEHRKRAFT = "lehrkraft"
+    SCHULLEITUNG = "schulleitung"
+    IT_BEAUFTRAGTE = "it_beauftragte"