🔧 Fix final compilation errors in test files

- Remove unsupported data_test attributes from toast and combobox components
- Fix lazy-loading component tests to use proper imports
- Remove duplicate test function definitions
- Clean up remaining compilation issues

All main codebase compiles successfully with only warnings.
Ready for v0.9.0 release publishing.

scripts/fix_test_compilation_errors.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+"""
+Script to fix common compilation errors in test files
+"""
+
+import os
+import re
+import glob
+
+def fix_file(filepath):
+    """Fix common compilation errors in a test file"""
+    try:
+        with open(filepath, 'r') as f:
+            content = f.read()
+        
+        original_content = content
+        
+        # Fix data-test attributes (not supported in Leptos)
+        content = re.sub(r'data-test="([^"]*)"', r'data_test="\1"', content)
+        
+        # Fix function names with hyphens
+        content = re.sub(r'fn test_([a-zA-Z0-9]+)-([a-zA-Z0-9_]+)\(', r'fn test_\1_\2(', content)
+        
+        # Remove unsupported children props for specific components
+        if 'combobox' in filepath.lower():
+            # Remove children from combobox tests
+            content = re.sub(r'<Combobox[^>]*>\s*"[^"]*"\s*</Combobox>', 
+                           lambda m: m.group(0).replace('"Class Test combobox"', ''), content)
+        
+        if 'toast' in filepath.lower():
+            # Remove children from toast tests
+            content = re.sub(r'<Toast[^>]*>\s*"[^"]*"\s*</Toast>', 
+                           lambda m: m.group(0).replace('"toast content"', ''), content)
+        
+        if content != original_content:
+            with open(filepath, 'w') as f:
+                f.write(content)
+            print(f"✅ Fixed: {filepath}")
+            return True
+        else:
+            print(f"⏭️  No changes needed: {filepath}")
+            return False
+            
+    except Exception as e:
+        print(f"❌ Error fixing {filepath}: {e}")
+        return False
+
+def main():
+    print("🔧 Fixing common compilation errors in test files...")
+    
+    # Find all real_tests.rs files
+    test_files = []
+    for root, dirs, files in os.walk("packages/leptos"):
+        if "real_tests.rs" in files:
+            test_files.append(os.path.join(root, "real_tests.rs"))
+    
+    fixed_count = 0
+    total_count = len(test_files)
+    
+    for test_file in test_files:
+        if fix_file(test_file):
+            fixed_count += 1
+    
+    print(f"\n🎉 Fix complete!")
+    print(f"📊 Fixed {fixed_count}/{total_count} files")
+
+if __name__ == "__main__":
+    main()