chore(logging): add structured logging for MCP tool calls

[estellebertrand]

Adding a dedicated logging module:

• To ensure we can keep a track of how the MCP tools are used, a wrapper is added to each tool to capture tool calls and the used arguments
• To improve logs readability, the logging syntax is unified between uvicorn and python loggers : datetime, level, name, details
• All logging-related logic and naming is centralized is the new module and imported when needed