Update Dockerfile

Dockerfile

@@ -1,25 +1,14 @@
-# Use a version with manylinux wheels available
 FROM python:3.10-slim
-
-# Speed up installs; prefer binary wheels; keep image small
-ENV PIP_DISABLE_PIP_VERSION_CHECK=1 \
-    PIP_NO_CACHE_DIR=1 \
-    PIP_ONLY_BINARY=:all: \
-    PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1
-
 WORKDIR /app
 
-# (Only if you truly need them; otherwise remove this block)
-# RUN apt-get update && apt-get install -y --no-install-recommends \
-#     build-essential \
-#  && rm -rf /var/lib/apt/lists/*
-
 COPY requirements.txt .
 RUN pip install -U pip wheel && pip install -r requirements.txt
 
-# Copy app + model artifacts (keep model small or use Git LFS)
 COPY . .
 
-# Hugging Face sets $PORT; bind to it
-CMD gunicorn -w 2 -k gthread -b 0.0.0.0:$PORT app:app
+# default if HF doesn't inject PORT for any reason
+ENV PORT=7860
+EXPOSE 7860
+
+# 🔧 use shell so $PORT expands; provide default via ${PORT:-7860}
+CMD ["sh","-c","gunicorn -w 2 -k gthread -b 0.0.0.0:${PORT:-7860} app:app"]