Update Dockerfile

Dockerfile

@@ -1,4 +1,8 @@
-# Base image
+# Ultroid - UserBot
+# Copyright (C) 2021-2025 TeamUltroid
+# This file is a part of < https://github.com/TeamUltroid/Ultroid/ >
+# Please read the GNU Affero General Public License in <https://www.github.com/TeamUltroid/Ultroid/blob/main/LICENSE/>.
+
 FROM python:3.10-slim
 
 # Set timezone
@@ -13,21 +17,24 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 # Set working directory
 WORKDIR /app
 
-# Copy bot source code
+# Copy bot source
 COPY . .
 
-# Ensure pip runs as root safely
+# Allow pip to run as root without warnings
 ENV PIP_ROOT_USER_ACTION=ignore
 
 # Install Python dependencies
 RUN pip install --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Run any setup script
+# Run installer script
 RUN bash installer.sh
 
+# Create writable session directory for Telethon
+RUN mkdir -p /app/sessions && chmod -R 777 /app/sessions
+
 # Set PYTHONPATH
 ENV PYTHONPATH="${PYTHONPATH}:/app"
 
-# Start the app
+# Start the bot
 CMD ["bash", "startup"]