Remove Conda support

[frgfm]

Summary

• remove the Conda release and install-check jobs from the publish workflow
• delete the client Conda recipe
• remove Anaconda badges and Conda install instructions from the README and client docs

Context

This follows the packaging/tooling direction from #590, where the project moved to uv.

Checks

• rg --hidden --no-ignore -n -i "conda|anaconda|miniconda|mamba|micromamba" client README.md .github
• git diff --check
• parsed .github/workflows/publish.yml with PyYAML

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (4309039) to head (8b9b31c).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #600      +/-   ##
==========================================
+ Coverage   90.09%   90.12%   +0.03%     
==========================================
  Files          55       55              
  Lines        2503     2512       +9     
==========================================
+ Hits         2255     2264       +9     
  Misses        248      248              

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[MateoLostanlen]

Hi @frgfm , thanks for the PR! Looks good to me, just 2 small tweaks to fully clean up Conda:

.pre-commit-config.yaml:8 — exclude: .conda was excluding client/.conda/meta.yaml (deleted in this PR) from the check-yaml hook. Dead config now, can be removed.
.gitignore:140 — client/conda-dist ignored the build-output dir created by the removed mkdir client/conda-dist workflow step. Nothing references it anymore, safe to drop.
Nothing blocking , just one extra commit to fully remove Conda

[frgfm]

Addressed the remaining Conda cleanup from the review:

• removed the obsolete .conda exclusion from .pre-commit-config.yaml
• removed the obsolete client/conda-dist ignore entry from .gitignore
• re-ran a full Conda/Anaconda/Mamba reference scan; no matches remain outside git metadata

Pushed in 8b9b31c.

[MateoLostanlen]

thanks !