feat: Vorbereitung-Module auf 100% — Persistenz, Backend-Services, UCCA Frontend

Phase A: PostgreSQL State Store (sdk_states Tabelle, InMemory-Fallback)
Phase B: Modules dynamisch vom Backend, Scope DB-Persistenz, Source Policy State
Phase C: UCCA Frontend (3 Seiten, Wizard, RiskScoreGauge), Obligations Live-Daten
Phase D: Document Import (PDF/LLM/Gap-Analyse), System Screening (SBOM/OSV.dev)
Phase E: Company Profile CRUD mit Audit-Logging
Phase F: Tests (Python + TypeScript), flow-data.ts DB-Tabellen aktualisiert

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

backend-compliance/migrations/003_document_import.sql

@@ -0,0 +1,41 @@
+-- =============================================================================
+-- Migration 003: Document Import Tables
+--
+-- Tables for imported compliance documents and gap analysis results.
+-- =============================================================================
+
+CREATE TABLE IF NOT EXISTS compliance_imported_documents (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id VARCHAR(255) NOT NULL,
+    filename VARCHAR(500) NOT NULL,
+    file_type VARCHAR(50) NOT NULL,
+    file_size INTEGER,
+    detected_type VARCHAR(50),
+    detection_confidence FLOAT,
+    extracted_text TEXT,
+    extracted_entities JSONB DEFAULT '[]',
+    recommendations JSONB DEFAULT '[]',
+    status VARCHAR(20) DEFAULT 'pending',
+    analyzed_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_imported_docs_tenant ON compliance_imported_documents(tenant_id);
+CREATE INDEX IF NOT EXISTS idx_imported_docs_status ON compliance_imported_documents(status);
+
+CREATE TABLE IF NOT EXISTS compliance_gap_analyses (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id VARCHAR(255) NOT NULL,
+    document_id UUID REFERENCES compliance_imported_documents(id) ON DELETE CASCADE,
+    total_gaps INTEGER DEFAULT 0,
+    critical_gaps INTEGER DEFAULT 0,
+    high_gaps INTEGER DEFAULT 0,
+    medium_gaps INTEGER DEFAULT 0,
+    low_gaps INTEGER DEFAULT 0,
+    gaps JSONB DEFAULT '[]',
+    recommended_packages JSONB DEFAULT '[]',
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_gap_analyses_tenant ON compliance_gap_analyses(tenant_id);
+CREATE INDEX IF NOT EXISTS idx_gap_analyses_document ON compliance_gap_analyses(document_id);