Refactor structure into Router - Service - Repository + Improve Error Handling and Exceptions

[AntonioMrtz]

Description

Refactor backend codebase for format, linting and enforcing separation between layers.

Commit type

Feat/Refactor

Issue

Solution

Proposed Changes

• Divide logic into Router - Service - Repository
• Use Exceptions as flow control
• Add logging into Service-Repository
• Move json logic into http_encode_service
• Improve exception and error handling
• Improve Database connection and stop app if connection failure
• Add PropertiesMessagesManager for retrieving constant messages from messages.ini
• Add patterns folder
• Transform song_service_provider to Factory
• Remove sdk architecture
• Add validations modules both for repo and service
• Add providers both for repo and service
• Unify logic for user and artist
• Unify logic for songs architectures

Potential Impact

Tests Performed

• [✅] Test performed

Screenshots

Additional Tasks

Assigned

@AntonioMrtz