♻️ Simplify uv workspace setup (#2423)

## AI Disclaimer

Using Codex with gpt-5.6-sol. Reviewed manually.

Author: tiangolo

backend/README.md

@@ -27,21 +27,7 @@ The API is available at `http://localhost:8000`, with automatic interactive docs
 
 ## General Workflow
 
-By default, the dependencies are managed with [uv](https://docs.astral.sh/uv/), go there and install it.
-
-From `./backend/` you can install all the dependencies with:
-
-```console
-$ uv sync
-```
-
-Then you can activate the virtual environment with:
-
-```console
-$ source .venv/bin/activate
-```
-
-Make sure your editor is using the correct Python virtual environment, with the interpreter at `backend/.venv/bin/python`.
+Run backend commands from `./backend/` with `uv run`. Make sure your editor uses the Python interpreter at `.venv/bin/python` in the project root.
 
 Modify or add SQLModel models for data and SQL tables in `./backend/app/models.py`, API endpoints in `./backend/app/api/`, CRUD (Create, Read, Update, Delete) utils in `./backend/app/crud.py`.
 

compose.override.yml

@@ -53,7 +53,6 @@ services:
           action: sync
           target: /app/backend
           ignore:
-            - ./backend/.venv
             - .venv
         - path: ./backend/pyproject.toml
           action: rebuild

frontend/README.md

@@ -39,7 +39,6 @@ Done, you have a frontend-less (api-only) app. 🤓
 
 ### Automatically
 
-* Activate the backend virtual environment.
 * From the top level project directory, run the script:
 
 ```bash