fix: share=True + SPACE_ID env to skip gradio's localhost-check pre-flight

Dockerfile

@@ -28,7 +28,10 @@ COPY --chown=user . /app
 ENV GRADIO_SERVER_NAME=0.0.0.0 \
     GRADIO_SERVER_PORT=7860 \
     GRADIO_ANALYTICS_ENABLED=False \
-    SYSTEM=spaces
+    SYSTEM=spaces \
+    SPACE_ID=lablab-ai-amd-developer-hackathon/signbridge \
+    SPACE_AUTHOR_NAME=lablab-ai-amd-developer-hackathon \
+    SPACE_REPO_NAME=signbridge
 EXPOSE 7860
 
 CMD ["python", "app.py"]

app.py

@@ -23,10 +23,15 @@ def main() -> None:
     # hatch.
     os.environ.setdefault("SYSTEM", "spaces")
     demo = build_demo()
+    # Gradio 4.44.1's _check_localhost pre-flight tries to connect to
+    # 127.0.0.1:7860 from inside the container and fails on HF's Docker
+    # SDK seccomp. Setting share=True is the documented bypass that skips
+    # the check; the FRP tunnel it would normally create is suppressed
+    # because HF detects the Space environment and serves directly.
     demo.queue().launch(
         server_name=os.getenv("GRADIO_SERVER_NAME", "0.0.0.0"),
         server_port=int(os.getenv("GRADIO_SERVER_PORT", "7860")),
-        share=False,
+        share=True,
         show_error=True,
     )