Refactor project structure and enhance Docker support

- Removed unnecessary `__init__.py` and `Dockerfile` to streamline project organization.
- Updated `.dockerignore` and `.gitignore` to improve exclusion patterns for build artifacts and environment files.
- Enhanced `Makefile` with new commands for managing Docker containers and added help documentation.
- Introduced `pyproject.toml` for better project metadata management and dependency tracking.
- Updated `requirements.txt` to reflect changes in dependencies for metrics and monitoring.
- Refactored various handler files to improve code organization and maintainability.

prometheus.yml

@@ -0,0 +1,26 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+rule_files:
+  # - "first_rules.yml"
+  # - "second_rules.yml"
+
+scrape_configs:
+  - job_name: 'telegram-bot'
+    static_configs:
+      - targets: ['telegram-bot:8000']
+    metrics_path: '/metrics'
+    scrape_interval: 10s
+    scrape_timeout: 10s
+    honor_labels: true
+    
+  - job_name: 'prometheus'
+    static_configs:
+      - targets: ['localhost:9090']
+
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+          # - alertmanager:9093