Add Legal Office seal and complete Azure CDN deployment

- Add Legal Office of the Master seal (SVG design with Maltese Cross, scales of justice, legal scroll)
- Create legal-office-manifest-template.json for Legal Office credentials
- Update SEAL_MAPPING.md and DESIGN_GUIDE.md with Legal Office seal documentation
- Complete Azure CDN infrastructure deployment:
  - Resource group, storage account, and container created
  - 17 PNG seal files uploaded to Azure Blob Storage
  - All manifest templates updated with Azure URLs
  - Configuration files generated (azure-cdn-config.env)
- Add comprehensive Azure CDN setup scripts and documentation
- Fix manifest URL generation to prevent double slashes
- Verify all seals accessible via HTTPS

packages/crypto/src/signature.ts

@@ -13,7 +13,7 @@ export class SignatureService {
   constructor(private kms: KMSClient) {}
 
   async sign(data: Buffer, _options: SignatureOptions): Promise<Buffer> {
-    return this.kms.sign(data);
+    return await this.kms.sign(data);
   }
 
   async verify(
@@ -21,7 +21,7 @@ export class SignatureService {
     signature: Buffer,
     _options: SignatureOptions
   ): Promise<boolean> {
-    return this.kms.verify(data, signature);
+    return await this.kms.verify(data, signature);
   }
 
   async signJSON(data: unknown, options: SignatureOptions): Promise<string> {