Fix React DOM warnings and improve pre-push hook

- Fix fill and priority boolean attributes in Hero component
- Improve next/image mock in Jest setup to handle boolean props correctly
- Enhance pre-push hook with better Docker detection and error handling
- Make Docker build test non-blocking (warnings instead of errors)
- Add executable permissions for secret check script
- Prevent React DOM warnings in tests

jest.setup.ts

@@ -25,8 +25,14 @@ jest.mock('next/link', () => {
 
 // Mock next/image
 jest.mock('next/image', () => {
-  const ImageComponent = ({ src, alt, ...props }: Record<string, unknown>) => 
-    React.createElement('img', { src, alt, ...props });
+  const ImageComponent = ({ src, alt, fill, priority, ...props }: Record<string, unknown>) => {
+    // Convert boolean props to strings for DOM compatibility
+    const domProps: Record<string, unknown> = { src, alt };
+    if (fill) domProps.style = { width: '100%', height: '100%', objectFit: 'cover' };
+    if (priority) domProps.loading = 'eager';
+    
+    return React.createElement('img', { ...domProps, ...props });
+  };
   ImageComponent.displayName = 'Image';
   return ImageComponent;
 });