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/002_sdk_states.sql

@@ -0,0 +1,19 @@
+-- =============================================================================
+-- Migration 002: SDK States Table
+--
+-- Persistent storage for SDK state management.
+-- Replaces the in-memory store used during development.
+-- =============================================================================
+
+CREATE TABLE IF NOT EXISTS sdk_states (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id VARCHAR(255) NOT NULL UNIQUE,
+    user_id VARCHAR(255),
+    state JSONB NOT NULL,
+    version INTEGER DEFAULT 1,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_sdk_states_tenant ON sdk_states(tenant_id);
+CREATE INDEX IF NOT EXISTS idx_sdk_states_updated ON sdk_states(updated_at);