Replace "FastNext" references with "PragmaStack" in migration script and configuration settings

backend/app/core/config.py

@@ -5,7 +5,7 @@ from pydantic_settings import BaseSettings
 
 
 class Settings(BaseSettings):
-    PROJECT_NAME: str = "App"
+    PROJECT_NAME: str = "PragmaStack"
     VERSION: str = "1.0.0"
     API_V1_STR: str = "/api/v1"
 

backend/migrate.py

@@ -143,7 +143,7 @@ def check_database_connection():
 def main():
     """Main function"""
     parser = argparse.ArgumentParser(
-        description='Database migration helper for FastNext template'
+        description='Database migration helper for PragmaStack template'
     )
     subparsers = parser.add_subparsers(dest='command', help='Command to run')