IDE integration tracker

### Describe the Bug

Keeping track of IDE integrations:

- [x] VSCode: **Supported**: https://marketplace.visualstudio.com/items?itemName=meta.pyrefly
- [x] PyCharm:
- Official support: https://www.jetbrains.com/help/pycharm/2025.3/lsp-tools.html#pyrefly
- Unofficial plugin: https://plugins.jetbrains.com/plugin/26829-pyrefly-unofficial-/versions @InSyncWithFoo
- [ ] Spyder: https://github.com/python-lsp/python-lsp-server/issues/648
- [x] Zed: https://github.com/zed-extensions/pyrefly & https://github.com/zed-industries/zed/pull/44262
- [ ] Sublime: https://github.com/sublimelsp/LSP-pyright
- [ ] Helix https://github.com/helix-editor/helix/blob/62f270e5d2fb34a77dd30a3b2e6b4c9fb6f1cfe1/languages.toml#L94
- [x] EMacs: https://pyrefly.org/en/docs/IDE/#emacs
- [x] NeoVim: https://github.com/facebook/pyrefly/issues/227
- [ ] Jupyter Lab: https://github.com/jupyter-lsp/jupyterlab-lsp (we have experimental built-in support, but need to add docs & fix bugs - see sub-issues)
- [ ] Google colab (#1596, blocked on https://github.com/googlecolab/colab-vscode/issues/214)

### Sandbox Link

_No response_

### (Only applicable for extension issues) IDE Information

_No response_