116 log tools

[mborne]

(closes #116)

Summary

This PR improves logging consistency and observability around tool execution.

It introduces a clear logging split:

• Tool entry points now log execution at info level with the tool name and input payload.
• Internal provider/helper calls (GPF and WFS internals) are moved to debug level and use standardized log prefixes.

This helps keep production logs concise while preserving detailed traces for debugging.

What Changed

• Added logger imports in all MCP tool classes and logged each execute(...) call with:
  • tool name (this.name)
  • input payload
• Updated internal logs from info to debug in several GPF/WFS modules:
  • adminexpress
  • altitude
  • geocode
  • parcellaire-express
  • urbanisme / assiettes servitudes
  • WFS feature execution helper
• Standardized debug log prefixes (e.g. [gpf:...]) for easier filtering.

Why

• Improve operator visibility of actual tool invocations.
• Reduce noise in default logs by moving low-level internals to debug.
• Make troubleshooting easier with consistent, grep-friendly log tags.

Impact

• No functional behavior change to tool outputs or APIs.
• Logging behavior changes only:
  • More explicit top-level tool execution logs at info.
  • More detailed internals available at debug.

Testing

• Existing unit tests pass (no schema or business logic changes expected).
• Change is primarily operational/observability-focused.