Amélioré

Added shared working notes for Claude to CLAUDE.md

The owner's working preferences, how the live system deploys, and the rules for several sessions sharing one checkout are now in the repository, so they apply on every computer.

A new section of CLAUDE.md, "Working with the owner", holds what had been kept in Claude's notes on one computer: asking before using the GitHub CLI, not offering to push, short decision questions, extra care on the deploy path, how deploys and dev sites run on the server, the hand-set foreign key rule on users.id, and how to commit only one session's files.