Add application file

app.py

@@ -267,6 +267,18 @@ def main() -> None:
 
 
 if __name__ == "__main__":
-	main()
+    # When run via `streamlit run`, a ScriptRunContext exists. If not, avoid calling
+    # Streamlit APIs directly to prevent "missing ScriptRunContext" warnings/errors.
+    try:
+        from streamlit.runtime.scriptrunner import get_script_run_ctx  # type: ignore
+
+        if get_script_run_ctx() is not None:
+            main()
+        else:
+            print("This app must be started with: streamlit run Image_Compressor/app.py")
+    except Exception:
+        # Older/newer Streamlit versions may not expose get_script_run_ctx.
+        # Fallback: advise the correct launch command.
+        print("This app must be started with: streamlit run Image_Compressor/app.py")