Refactor: migrate utils to common module and reorganize test structure

[shiningflash]

Overview

This pull request implements significant improvements to the repository structure, enhancing clarity, maintainability, and scalability.

Changes

1. Migration to Common Module:

   • Moved all utilities from src/sdk/utils/ to src/common/.
   • Updated imports across the repository to reflect the new structure.
   • Centralized utility files like exceptions.py, logger.py, validators.py, retry.py, and requests.py under src/common/.

2. Test Structure Reorganization:

   • Grouped tests by type (unit, integration, e2e) and module (sdk, server).
   • Created separate directories for SDK and server tests within unit and integration.
   • Simplified navigation and module-specific test execution.

3. Improved Flexibility and Readability:

   • Centralized shared configurations in conftest.py.
   • Removed redundant __init__.py files from test directories.
   • Enhanced test discoverability and modularity.

Benefits

• The common module promotes code reuse and reduces duplication across SDK and server modules.
• Refactored test structure enhances maintainability and scalability.
• Aligned repository structure with industry best practices.

Next Steps

• Review the new structure and suggest improvements.
• Validate that all tests pass successfully with the new module paths.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
src/common
__init__.py	0	0	100%
exceptions.py	52	9	9	83%
logger.py	22	0	100%
requests.py	15	4	4	73%
retry.py	21	1	1	95%
validators.py	62	2	2	97%
src/sdk
__init__.py	0	0	100%
client.py	39	0	100%
src/sdk/features
__init__.py	0	0	100%
contacts.py	38	0	100%
messages.py	30	2	2	93%
src/sdk/schemas
__init__.py	0	0	100%
contacts.py	26	3	3	88%
messages.py	27	2	2	93%
src/server
__init__.py	0	0	100%
app.py	25	3	3	88%
schemas.py	8	0	100%
TOTAL	365	26	93%

Tests	Skipped	Failures	Errors	Time
56	0 💤	0 ❌	0 🔥	6.813s ⏱️