feat: added catalog functions to list and search variables

[ymarcon]

No description provided.

[Copilot]

Pull request overview

This PR bumps the datashield package version and extends the client interface/session API to support catalog-style operations for listing table variables, listing taxonomies, and searching variables across repositories.

Changes:

• Bump project version to 0.4.0 and update uv.lock accordingly (including ruff).
• Extend DSConnection with new catalog methods (get_name, list_table_variables, list_taxonomies, search_variables).
• Add corresponding DSSession helpers (variables, taxonomies, search_variables) and refactor most server-keying to use conn.get_name().
• Add a make update target to refresh the lockfile via uv sync.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
uv.lock	Updates locked versions for the 0.4.0 release and bumps ruff.
pyproject.toml	Bumps project version to 0.4.0.
datashield/interface.py	Adds new DSConnection catalog/name interface methods.
datashield/api.py	Adds session-level catalog APIs and switches server identifiers to get_name().
Makefile	Adds an update target intended to regenerate uv.lock.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.