fix: update pixi.lock for CI compatibility

Iteration: 1/10
Job: Multiple CI jobs failing on pixi install
Error: The process '/home/runner/.pixi/bin/pixi' failed with exit code 1

Root cause: Outdated pixi.lock file causing CI environment conflicts
Fix: Updated all environments and dependencies to latest compatible versions

Major package updates:
- mcp: 1.10.1 → 1.12.1
- ruff: 0.12.2 → 0.12.4
- mypy: 1.16.1 → 1.17.0
- nodejs: 22.13.0 → 24.4.1
- grpcio: 1.71.0 → 1.73.1
- protobuf: 5.29.3 → 6.31.1

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: MementoRC