Update requirements.txt

requirements.txt

@@ -1,16 +1,27 @@
-fastapi>=0.104.0
-uvicorn[standard]>=0.24.0
-python-multipart>=0.0.6
+# Hugging Face Space requirements for sam_auto_app.py.
+# Rename to requirements.txt in the Space repo.
+
+gradio>=4.0.0
 torch>=2.0.0
 torchvision>=0.15.0
 segment-anything @ git+https://github.com/facebookresearch/segment-anything.git
-easyocr>=1.7.0
 opencv-contrib-python-headless>=4.8.0
 numpy>=1.24.0,<2.0
 Pillow>=10.0.0
-requests>=2.28.0
-huggingface_hub>=0.20.0
+easyocr>=1.7.0
+
+# Vector wall extraction from PDF (pdf_walls.py). Without it the PDF tab is
+# disabled and only the raster path runs.
+pymupdf>=1.24.0
+
+# REQUIRED, both of them. Wall extraction is the wall_vectorizer_flask.py method:
+# vtracer traces the sheet, svgpathtools parses the traced paths and splits them
+# into the subpaths the wall filter measures. Without either there is no wall
+# extraction at all — the app has no other path and no network fallback.
+vtracer>=0.6.11
+svgpathtools>=1.6.1
+
+# Only needed for the 1:1 parity path (when the sibling DeepPlan modules are
+# uploaded alongside the app). Harmless to keep for the inline-port-only setup.
 scipy>=1.11.0
 scikit-image>=0.21.0
-# Single-page demo UI (gradio_app.py). Not needed by the FastAPI service.
-gradio>=4.0.0