Modernized and simplified the app.

This wasn't a crazy rewrite or anything, I just updated it to the new
YouTube Transcript and OpenAI API's, as well as super simplifying the
code. On top of that, it now works single threaded, just using multiple
gunicorn threads for concurrency. It's a lot simplier and cleaner,
although not up to my current standards.

Dockerfile

@@ -1,30 +1,20 @@
 # Use an official Python runtime as a parent image
-FROM python:3.13-slim
+FROM ghcr.io/astral-sh/uv:debian
 
 # Set environment variables
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
-# Install system dependencies
-RUN apt-get update && apt-get install -y \
-    build-essential \
-    && rm -rf /var/lib/apt/lists/*
-
 # Set work directory
 WORKDIR /app
 
-# Install Python dependencies
-COPY requirements.txt .
-RUN pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt
-
 # Copy application files
-COPY /app /app
+COPY ./app /app
+# Copy the pyproject.toml and uv.lock because this project's structure is chopped
+COPY ./pyproject.toml ./uv.lock /app
 
 # Make start.sh executable
 RUN chmod +x /app/start.sh
 
-# Expose the port the app runs on
-EXPOSE 1986
-
 # Specify the entrypoint script
 ENTRYPOINT ["/app/start.sh"]