feat(security): migrate content scanning and bounce detection to Rust security bridge; add scanContent IPC command and Rust content scanner with tests; update TS RustSecurityBridge and callers, and adjust CI package references

dist_ts/security/classes.rustsecuritybridge.d.ts

@@ -48,6 +48,12 @@ interface IReputationResult {
     listed_count: number;
     total_checked: number;
 }
+interface IContentScanResult {
+    threatScore: number;
+    threatType: string | null;
+    threatDetails: string | null;
+    scannedElements: string[];
+}
 interface IVersionInfo {
     bin: string;
     core: string;
@@ -88,6 +94,13 @@ export declare class RustSecurityBridge {
         diagnosticCode?: string;
         statusCode?: string;
     }): Promise<IBounceDetection>;
+    /** Scan email content for threats (phishing, spam, malware, etc.). */
+    scanContent(opts: {
+        subject?: string;
+        textBody?: string;
+        htmlBody?: string;
+        attachmentNames?: string[];
+    }): Promise<IContentScanResult>;
     /** Check IP reputation via DNSBL. */
     checkIpReputation(ip: string): Promise<IReputationResult>;
     /** Verify DKIM signatures on a raw email message. */
@@ -123,4 +136,4 @@ export declare class RustSecurityBridge {
         mailFrom: string;
     }): Promise<IEmailSecurityResult>;
 }
-export type { IDkimVerificationResult, ISpfResult, IDmarcResult, IEmailSecurityResult, IValidationResult, IBounceDetection, IReputationResult as IRustReputationResult, IVersionInfo, };
+export type { IDkimVerificationResult, ISpfResult, IDmarcResult, IEmailSecurityResult, IValidationResult, IBounceDetection, IContentScanResult, IReputationResult as IRustReputationResult, IVersionInfo, };