Initial commit: HR Position System

- Database schema with MySQL support
- LLM API integration (Gemini 2.5 Flash, DeepSeek, OpenAI)
- Error handling with copyable error messages
- CORS fix for API calls
- Complete setup documentation

🤖 Generated with Claude Code
https://claude.com/claude-code

Co-Authored-By: Claude <noreply@anthropic.com>

init_database.py

@@ -0,0 +1,130 @@
+"""
+Database initialization script for HR Position System
+Connects to MySQL and executes the schema creation script
+"""
+
+import os
+import pymysql
+from dotenv import load_dotenv
+
+# Load environment variables
+load_dotenv()
+
+def init_database():
+    """Initialize the database schema"""
+
+    # Database connection parameters
+    db_config = {
+        'host': os.getenv('DB_HOST'),
+        'port': int(os.getenv('DB_PORT')),
+        'user': os.getenv('DB_USER'),
+        'password': os.getenv('DB_PASSWORD'),
+        'database': os.getenv('DB_NAME'),
+        'charset': 'utf8mb4',
+        'cursorclass': pymysql.cursors.DictCursor
+    }
+
+    print(f"Connecting to database: {db_config['host']}:{db_config['port']}")
+    print(f"Database: {db_config['database']}")
+
+    try:
+        # Connect to MySQL
+        connection = pymysql.connect(**db_config)
+        print("✓ Successfully connected to database")
+
+        # Read SQL schema file
+        schema_file = os.path.join(os.path.dirname(__file__), 'database_schema.sql')
+        with open(schema_file, 'r', encoding='utf-8') as f:
+            sql_script = f.read()
+
+        # Split SQL script by semicolon and execute each statement
+        cursor = connection.cursor()
+
+        # Split by semicolon and filter out empty statements
+        statements = [stmt.strip() for stmt in sql_script.split(';') if stmt.strip()]
+
+        print(f"\nExecuting {len(statements)} SQL statements...")
+
+        executed = 0
+        for i, statement in enumerate(statements, 1):
+            try:
+                # Skip comments and empty lines
+                if not statement or statement.startswith('--'):
+                    continue
+
+                cursor.execute(statement)
+                executed += 1
+
+                # Show progress every 10 statements
+                if executed % 10 == 0:
+                    print(f"  Executed {executed} statements...")
+
+            except Exception as e:
+                print(f"  Warning on statement {i}: {str(e)[:100]}")
+                continue
+
+        # Commit changes
+        connection.commit()
+        print(f"\n✓ Successfully executed {executed} SQL statements")
+
+        # Verify tables were created
+        cursor.execute("""
+            SELECT table_name
+            FROM information_schema.tables
+            WHERE table_schema = 'hr_position_system'
+            ORDER BY table_name
+        """)
+        tables = cursor.fetchall()
+
+        print(f"\n✓ Created {len(tables)} tables:")
+        for table in tables:
+            print(f"  - {table['table_name']}")
+
+        # Close connection
+        cursor.close()
+        connection.close()
+
+        print("\n✓ Database initialization completed successfully!")
+        return True
+
+    except Exception as e:
+        print(f"\n✗ Error initializing database: {str(e)}")
+        return False
+
+def test_connection():
+    """Test database connection"""
+    db_config = {
+        'host': os.getenv('DB_HOST'),
+        'port': int(os.getenv('DB_PORT')),
+        'user': os.getenv('DB_USER'),
+        'password': os.getenv('DB_PASSWORD'),
+        'database': os.getenv('DB_NAME')
+    }
+
+    try:
+        connection = pymysql.connect(**db_config)
+        print("✓ Database connection test successful")
+        connection.close()
+        return True
+    except Exception as e:
+        print(f"✗ Database connection test failed: {str(e)}")
+        return False
+
+if __name__ == '__main__':
+    print("=" * 60)
+    print("HR Position System - Database Initialization")
+    print("=" * 60)
+    print()
+
+    # Test connection first
+    print("Step 1: Testing database connection...")
+    if not test_connection():
+        print("\nPlease check your database configuration in .env file")
+        exit(1)
+
+    print("\nStep 2: Initializing database schema...")
+    if init_database():
+        print("\nDatabase is ready to use!")
+    else:
+        print("\nDatabase initialization failed. Please check the errors above.")
+        exit(1)