Refactor and clean up code formatting across multiple files

- Consolidated and simplified code formatting by removing unnecessary line breaks and improving readability in various functions.
- Updated the handling of backup file sending in backup.py for better clarity.
- Streamlined error handling and logging messages in several handlers to enhance consistency.
- Adjusted the Makefile to exclude specific files during Ruff checks and formatting.
- Made minor adjustments to function signatures and parameter handling for improved clarity and consistency.

This commit enhances code maintainability and readability without altering functionality.

.github/workflows/format.yml

@@ -0,0 +1,35 @@
+name: Code Formatting
+
+on: [push, pull_request]
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.12'
+    
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install ruff
+    
+    - name: Run Ruff formatter with pyproject.toml
+      run: ruff format . --config pyproject.toml --exclude main.py,handlers/payments
+    
+    - name: Check for changes
+      id: check_changes
+      run: |
+        git diff --exit-code || echo "changes_detected=true" >> $GITHUB_OUTPUT
+    
+    - name: Commit and push changes
+      if: steps.check_changes.outputs.changes_detected == 'true'
+      run: |
+        git config --global user.name 'GitHub Actions'
+        git config --global user.email 'actions@github.com'
+        git add .
+        git commit -m "Auto-format code with Ruff using pyproject.toml"
+        git push