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.

helper_bot/handlers/private/constants.py

@@ -1,9 +1,9 @@
 """Constants for private handlers"""
 
-from typing import Final
+from typing import Final, Dict
 
 # FSM States
-FSM_STATES: Final[dict[str, str]] = {
+FSM_STATES: Final[Dict[str, str]] = {
     "START": "START",
     "SUGGEST": "SUGGEST",
     "PRE_CHAT": "PRE_CHAT",
@@ -11,7 +11,7 @@ FSM_STATES: Final[dict[str, str]] = {
 }
 
 # Button texts
-BUTTON_TEXTS: Final[dict[str, str]] = {
+BUTTON_TEXTS: Final[Dict[str, str]] = {
     "SUGGEST_POST": "📢Предложить свой пост",
     "SAY_GOODBYE": "👋🏼Сказать пока!",
     "LEAVE_CHAT": "Выйти из чата",
@@ -21,7 +21,7 @@ BUTTON_TEXTS: Final[dict[str, str]] = {
 }
 
 # Error messages
-ERROR_MESSAGES: Final[dict[str, str]] = {
+ERROR_MESSAGES: Final[Dict[str, str]] = {
     "UNSUPPORTED_CONTENT": (
         'Я пока не умею работать с таким сообщением. '
         'Пришли текст и фото/фоты(ы). А лучше перешли это сообщение админу @kerrad1\n'