Refactor: remove AGPL imgly dependency and migrate background removal to python backend

services/background-remover/Dockerfile

@@ -0,0 +1,35 @@
+FROM python:3.10-slim
+
+WORKDIR /app
+
+# Install system dependencies
+# We need ffmpeg for video processing and libsm6 libxext6 for opencv (if needed by backgroundremover)
+RUN apt-get update && apt-get install -y \
+    ffmpeg \
+    libsm6 \
+    libxext6 \
+    wget \
+    && rm -rf /var/lib/apt/lists/*
+
+# Pre-create the directory for u2net models so they persist if mounted,
+# or at least get downloaded to a known location
+ENV U2NET_HOME=/root/.u2net
+RUN mkdir -p /root/.u2net
+
+COPY requirements.txt .
+
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
+
+# We explicitly pre-download the model by running backgroundremover on a dummy image if we wanted,
+# but the script downloads it on first run. To avoid huge first-request times,
+# you could add a script here to download the u2net model directly.
+# wget https://github.com/nadermx/backgroundremover/raw/main/models/u2net.pth -O /root/.u2net/u2net.pth (if available)
+
+COPY . .
+
+EXPOSE 8000
+
+# Using shm-size is handled in docker-compose, but we set workers to 1 
+# because video processing is extremely heavy and multiprocessing can crash without enough shm
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]