fix: add build dependencies and install packages directly without Gradio

Dockerfile

@@ -3,12 +3,13 @@
 
 FROM python:3.10-slim
 
-# Install system dependencies
+# Install system dependencies including build tools
 RUN apt-get update && apt-get install -y \
     ffmpeg \
     libgl1-mesa-glx \
     libglib2.0-0 \
     git \
+    build-essential \
     && rm -rf /var/lib/apt/lists/*
 
 # Create user for Hugging Face Spaces (following HF Spaces best practices)
@@ -17,12 +18,26 @@ RUN useradd -m -u 1000 user
 # Set working directory
 WORKDIR /app
 
-# Copy requirements file
-COPY requirements.txt requirements.txt
-
-# Install Python dependencies as root
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
+# Install Python dependencies as root (API-only, no Gradio)
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
+    pip install --no-cache-dir \
+    fastapi>=0.115.2 \
+    uvicorn[standard]==0.24.0 \
+    python-multipart>=0.0.18 \
+    motor==3.3.2 \
+    pymongo==4.6.0 \
+    python-dotenv==1.0.0 \
+    dnspython==2.4.2 \
+    numpy==1.24.3 \
+    insightface==0.7.3 \
+    onnxruntime==1.17.3 \
+    opencv-python-headless \
+    psutil==5.9.5 \
+    tqdm==4.65.0 \
+    Pillow \
+    moviepy==1.0.3 \
+    imageio-ffmpeg \
+    huggingface_hub>=0.23.0
 
 # Copy application code with ownership
 COPY --chown=user:user . /app

requirements-api.txt

@@ -0,0 +1,18 @@
+# API-only requirements (no Gradio)
+fastapi>=0.115.2
+uvicorn[standard]==0.24.0
+python-multipart>=0.0.18
+motor==3.3.2
+pymongo==4.6.0
+python-dotenv==1.0.0
+dnspython==2.4.2
+numpy==1.24.3
+insightface==0.7.3
+onnxruntime==1.17.3
+opencv-python-headless
+psutil==5.9.5
+tqdm==4.65.0
+Pillow
+moviepy==1.0.3
+imageio-ffmpeg
+huggingface_hub>=0.23.0