Fix upload-trigger API path and harden Gradio endpoint compatibility

app.py

@@ -5,6 +5,7 @@ Tactical monochrome interface with robust upload and model routing.
 
 from __future__ import annotations
 
+import inspect
 import tempfile
 from pathlib import Path
 from typing import Any
@@ -711,9 +712,25 @@ with gr.Blocks(
             export_file = gr.File(label="Download report artifact", visible=False)
             export_status = gr.Markdown("**Export:** No artifact generated yet.", elem_classes=["status-line"])
 
-    file_upload.upload(fn=on_file_upload, inputs=file_upload, outputs=[inp, ingest_status])
-    btn_sample_text.click(fn=on_sample_text, outputs=[inp, ingest_status])
-    btn_sample_json.click(fn=on_sample_json, outputs=[inp, ingest_status])
+    # Prefer `change` for broad Gradio compatibility; keep `upload` as fallback.
+    file_upload.change(
+        fn=on_file_upload,
+        inputs=file_upload,
+        outputs=[inp, ingest_status],
+        queue=False,
+        api_name="ingest_file",
+    )
+    if hasattr(file_upload, "upload"):
+        file_upload.upload(
+            fn=on_file_upload,
+            inputs=file_upload,
+            outputs=[inp, ingest_status],
+            queue=False,
+            api_name="ingest_file_upload",
+        )
+
+    btn_sample_text.click(fn=on_sample_text, outputs=[inp, ingest_status], queue=False, api_name="load_sample_text")
+    btn_sample_json.click(fn=on_sample_json, outputs=[inp, ingest_status], queue=False, api_name="load_sample_json")
 
     btn_generate.click(
         fn=generate_report,
@@ -749,12 +766,22 @@ with gr.Blocks(
             export_file,
             export_status,
         ],
+        queue=False,
+        api_name="clear_console",
     )
 
     gr.HTML('<div class="tac-custom-footer">© 2026 NorthernTribe Research, Inc. All rights reserved.</div>')
 
 
-demo.queue(max_size=16)
+_queue_kwargs: dict[str, Any] = {"max_size": 16}
+if "api_open" in inspect.signature(demo.queue).parameters:
+    _queue_kwargs["api_open"] = True
+demo.queue(**_queue_kwargs)
 
 if __name__ == "__main__":
-    demo.launch(server_name="0.0.0.0", show_api=True)
+    _launch_kwargs: dict[str, Any] = {"server_name": "0.0.0.0"}
+    if "show_api" in inspect.signature(demo.launch).parameters:
+        _launch_kwargs["show_api"] = True
+    if "show_error" in inspect.signature(demo.launch).parameters:
+        _launch_kwargs["show_error"] = True
+    demo.launch(**_launch_kwargs)

src/upload_io.py

@@ -15,6 +15,12 @@ def resolve_uploaded_path(file_obj: Any) -> Path | None:
     if file_obj is None:
         return None
 
+    # Some Gradio payloads return a list even for single-file mode.
+    if isinstance(file_obj, list):
+        if not file_obj:
+            return None
+        return resolve_uploaded_path(file_obj[0])
+
     if isinstance(file_obj, (str, Path)):
         return Path(file_obj)
 

tests/test_upload_io.py

@@ -39,3 +39,8 @@ def test_read_uploaded_text_with_missing_file():
     content, status = read_uploaded_text("/tmp/this_file_should_not_exist_123.log")
     assert content == ""
     assert "path not found" in status
+
+
+def test_resolve_uploaded_path_from_list_payload():
+    p = resolve_uploaded_path(["/tmp/example-from-list.log"])
+    assert p == Path("/tmp/example-from-list.log")