Refactor Nginx configuration and update project dependencies

- Cleaned up the Nginx configuration for the Coolify deployment, ensuring proper formatting and organization.
- Updated the `pyproject.toml` file to maintain consistent formatting.
- Reformatted the `requirements.txt` file for better readability while keeping the dependencies unchanged.

backend/Dockerfile

@@ -1,22 +1,22 @@
-FROM python:3.12-slim
-
-WORKDIR /app
-
-# Install system dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    gcc \
-    curl \
-    && rm -rf /var/lib/apt/lists/*
-
-# Copy requirements and install Python dependencies
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Copy application code
-COPY . .
-
-# Expose port
-EXPOSE 12015
-
-# Run the application
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "12015"]
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements and install Python dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY . .
+
+# Expose port
+EXPOSE 12015
+
+# Run the application
+CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "12015"]