refactor: update API Dockerfile to use uv for dependency management

apps/api/Dockerfile

@@ -1,30 +1,13 @@
-# Use an official Python runtime as a parent image
-FROM python:3.12.3-slim
+FROM python:3.12-slim-bookworm
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
 
-# Set environment variables
-ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1 \
-    PIP_NO_CACHE_DIR=off \
-    PIP_DISABLE_PIP_VERSION_CHECK=on 
+# Copy the project into the image
+ADD . /app
 
-# Set work directory
-WORKDIR /usr/learnhouse-api
+# Sync the project into a new environment, using the frozen lockfile
+WORKDIR /app
+RUN uv sync --frozen
 
-# Install system dependencies and Poetry
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    gcc \
-    build-essential \
-    && rm -rf /var/lib/apt/lists/* \
-    && pip install --no-cache-dir uv
-
-# Copy only requirements to cache them in docker layer
-COPY uv.lock pyproject.toml ./
-
-# Install dependencies using uv
-RUN uv sync
-
-# Copy the current directory contents into the container
-COPY . .
 
 # Run the application
-CMD ["python", "app.py"]
+CMD ["uv", "run", "app.py"]