feat: write doc for python code intelligence

Author: devvaannsh

docs/07-Code Intelligence/04-python.md

@@ -0,0 +1,28 @@
+---
+title: Python
+slug: "/Features/python-code-intelligence"
+---
+
+**Phoenix Code** supports full code intelligence for Python: completions with documentation, parameter hints, hover info, Go to Definition, Find Usages, and type error checking with quick fixes in the Problems panel.
+
+Everything works the same way as in [JavaScript & TypeScript](./js-ts-code-intelligence).
+
+:::info Desktop Only
+Python code intelligence runs in the desktop app.
+:::
+
+## Automatic Setup
+
+Python support is powered by [Pyrefly](https://pyrefly.org), a language server built by Meta. Phoenix Code downloads it (~25 MB) the first time you open a Python file. The progress shows in the status bar, with a stop button to cancel.
+
+<!-- TODO: PLUTO - add image here showing the python setup task in the status bar -->
+
+> Updates are automatic, and if you are offline, the download waits for a connection.
+
+To turn Python code intelligence off, set the `python.codeIntelligence` [preference](/docs/editing-text#editing-preferences) to `false`. Setting it back to `true` downloads the server again.
+
+## Formatting with Ruff
+
+The download also includes [Ruff](https://docs.astral.sh/ruff/), a Python formatter. The [Beautify Code](/docs/Features/beautify-code) command uses it to format your Python files.
+
+If your project has its own Ruff config (`pyproject.toml` or `ruff.toml`), it is respected, so formatting matches what you get on the command line.