Refactor comments in Dockerfile for clarity and consistency

Dockerfile

@@ -1,29 +1,27 @@
-# Use Python 3.11 to satisfy the 'perception-models' requirement
+# 1. Use Python 3.11 to satisfy the 'perception-models' requirement
 FROM python:3.11
 
-# Set the working directory
+# 2. Set the working directory
 WORKDIR /code
 
-# Install system dependencies (ffmpeg is required for audio processing)
+# 3. Install system dependencies (ffmpeg is required for audio)
 RUN apt-get update && apt-get install -y ffmpeg && rm -rf /var/lib/apt/lists/*
 
-# Copy requirements and install Python dependencies
+# 4. Copy requirements and install Python dependencies
 COPY requirements.txt .
 RUN pip install --no-cache-dir --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Set up a new user named "user" with user ID 1000
-# (This is a Hugging Face Spaces security requirement)
+# 5. Set up a user (Required by HF Spaces security)
 RUN useradd -m -u 1000 user
 USER user
 ENV HOME=/home/user \
     PATH=/home/user/.local/bin:$PATH
 
-# Set working directory to the user's home directory
 WORKDIR $HOME/app
 
-# Copy the rest of the application files
+# 6. Copy application files
 COPY --chown=user . $HOME/app
 
-# Command to run the application
+# 7. Start the app
 CMD ["python", "app.py"]