refactor(consent-sdk,dsms-gateway): split ConsentManager, types, and main.py

- consent-sdk/src/types/index.ts: extracted 438 LOC into core.ts, config.ts,
  vendor.ts, api.ts, events.ts, storage.ts, translations.ts; index.ts is now
  a 21-LOC barrel re-exporter
- consent-sdk/src/core/ConsentManager.ts: extracted normalizeConsentInput,
  isConsentExpired, needsConsent, ALL_CATEGORIES, MINIMAL_CATEGORIES into
  consent-manager-helpers.ts; reduced from 467 to 345 LOC
- dsms-gateway/main.py: extracted models → models.py, config → config.py,
  IPFS helpers + verify_token → dependencies.py, route handlers →
  routers/documents.py and routers/node.py; main.py is now a 41-LOC app
  factory; test mock paths updated accordingly (27/27 tests pass)

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

dsms-gateway/models.py

@@ -0,0 +1,32 @@
+"""
+DSMS Gateway — Pydantic request/response models.
+"""
+
+from typing import Optional
+from pydantic import BaseModel
+
+
+class DocumentMetadata(BaseModel):
+    """Metadaten für gespeicherte Dokumente"""
+    document_type: str  # 'legal_document', 'consent_record', 'audit_log'
+    document_id: Optional[str] = None
+    version: Optional[str] = None
+    language: Optional[str] = "de"
+    created_at: Optional[str] = None
+    checksum: Optional[str] = None
+    encrypted: bool = False
+
+
+class StoredDocument(BaseModel):
+    """Antwort nach erfolgreichem Speichern"""
+    cid: str  # Content Identifier (IPFS Hash)
+    size: int
+    metadata: DocumentMetadata
+    gateway_url: str
+    timestamp: str
+
+
+class DocumentList(BaseModel):
+    """Liste der gespeicherten Dokumente"""
+    documents: list
+    total: int