Fix remaining TypeScript errors: use issues instead of errors, change silent to error log level

- Fix ZodError.errors to ZodError.issues for Zod 4.x compatibility
- Change test log level from 'silent' to 'error' (silent not supported)
- Fix getService mock type signature with generic parameter

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/core/src/security/plugin-config-validator.test.ts

@@ -9,7 +9,7 @@ describe('PluginConfigValidator', () => {
   let logger: ReturnType<typeof createLogger>;
 
   beforeEach(() => {
-    logger = createLogger({ level: 'silent' });
+    logger = createLogger({ level: 'error' });
     validator = new PluginConfigValidator(logger);
   });
 

packages/core/src/security/plugin-config-validator.ts

@@ -172,8 +172,8 @@ export class PluginConfigValidator {
 
   // Private methods
 
-  private formatZodErrors(error: z.ZodError): Array<{path: string; message: string}> {
-    return error.errors.map((e: z.ZodIssue) => ({
+  private formatZodErrors(error: z.ZodError<any>): Array<{path: string; message: string}> {
+    return error.issues.map((e: z.ZodIssue) => ({
       path: e.path.join('.') || 'root',
       message: e.message,
     }));

packages/core/src/security/plugin-permission-enforcer.test.ts

@@ -9,7 +9,7 @@ describe('PluginPermissionEnforcer', () => {
   let logger: ReturnType<typeof createLogger>;
 
   beforeEach(() => {
-    logger = createLogger({ level: 'silent' });
+    logger = createLogger({ level: 'error' });
     enforcer = new PluginPermissionEnforcer(logger);
   });
 
@@ -172,12 +172,12 @@ describe('SecurePluginContext', () => {
   let mockBaseContext: PluginContext;
 
   beforeEach(() => {
-    logger = createLogger({ level: 'silent' });
+    logger = createLogger({ level: 'error' });
     enforcer = new PluginPermissionEnforcer(logger);
 
     mockBaseContext = {
       registerService: () => {},
-      getService: (name: string) => ({ name }),
+      getService: <T>(name: string): T => ({ name } as any),
       getServices: () => new Map(),
       hook: () => {},
       trigger: async () => {},