Add Docker build workflow and enhance admin functionalities

- Introduced a new GitHub Actions workflow for building and pushing the development Docker image.
- Added inline mode handling for user interactions, allowing users to share referral links and view statistics.
- Enhanced admin functionalities with new sections for user management, statistics, and promo code management.
- Implemented CSV export for logs and improved notification services for various events, including new user registrations and payment notifications.
- Updated localization files to support new features and commands.

db/dal/promo_code_dal.py

@@ -26,6 +26,13 @@ async def get_promo_code_by_id(session: AsyncSession,
     return await session.get(PromoCode, promo_code_id)
 
 
+async def get_promo_code_by_code(session: AsyncSession, code_str: str) -> Optional[PromoCode]:
+    """Get promo code by code string (regardless of active status)"""
+    stmt = select(PromoCode).where(PromoCode.code == code_str.upper())
+    result = await session.execute(stmt)
+    return result.scalar_one_or_none()
+
+
 async def get_active_promo_code_by_code_str(
         session: AsyncSession, code_str: str) -> Optional[PromoCode]:
     stmt = select(PromoCode).where(