v3.3: Fix build error - restrict numpy < 2.0

Dockerfile

@@ -1,24 +1,21 @@
 FROM python:3.11-slim
 WORKDIR /app
 
-# Standard CV, HDF5, and build tools for native dependencies
+# Standard CV and HDF5 libraries
 RUN apt-get update && apt-get install -y \
-    build-essential \
-    pkg-config \
     libhdf5-dev \
     libgl1-mesa-glx \
     libglib2.0-0 \
     && rm -rf /var/lib/apt/lists/*
 
 COPY requirements.txt .
-RUN pip install --no-cache-dir --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy model and code
 COPY best_v6.keras .
 COPY class_names.json .
 COPY portal.html .
 COPY main.py .
 
 EXPOSE 7860
+# 1 worker to save RAM on free tier
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]

requirements.txt

@@ -1,10 +1,9 @@
-fastapi==0.110.0
-uvicorn[standard]==0.29.0
-python-multipart==0.0.9
+fastapi
+uvicorn[standard]
+python-multipart
 tensorflow==2.16.1
-pillow==10.3.0
-numpy==1.26.4
-python-dotenv==1.0.1
-httpx==0.27.0
-requests==2.31.0
-h5py==3.10.0
+pillow
+numpy<2.0.0
+python-dotenv
+httpx
+requests