Fix Codex Extractor interaction compatibility

app.py

@@ -6,6 +6,7 @@ from pathlib import Path
 
 import gradio as gr
 import pandas as pd
+import gradio_client.utils as gradio_client_utils
 
 from src.totem_workbook import (
     DEFAULT_WORKBOOK,
@@ -26,6 +27,24 @@ from src.codex_extractor import process_upload, format_fingerprint_report
 
 ORIGINAL_WORKBOOK_PATH = "data/order69_macmillan_totem_rebuilt.xlsx"
 
+
+def _patch_gradio_schema_bool_compat() -> None:
+    """
+    Compatibility shim for Gradio API schema parsing where boolean JSON schema
+    nodes can appear as `additionalProperties: true` in newer Pydantic output.
+    """
+    original_get_type = gradio_client_utils.get_type
+
+    def _safe_get_type(schema):
+        if isinstance(schema, bool):
+            return "boolean"
+        return original_get_type(schema)
+
+    gradio_client_utils.get_type = _safe_get_type
+
+
+_patch_gradio_schema_bool_compat()
+
 CSS = """
 :root {
   --studio-green: #0e4a1d;