Update JSON schema for 425d8a2be9

Most important change is https://github.com/GREsau/schemars/pull/310,
which keeps newlines unchanged during schema generation. This is
important to preserve the lists, markdown code blocks, and markdown
headings in our docs.

Note: This PR deliberately does not update the schema file yet in order
to test #1083. So it should be merged after #1083.

Automates updating the JSON schemas as in
https://github.com/dora-rs/dora/pull/1080

Also set `#![warn(missing_docs)]` for the module so that we get a
warning if we add undocumented fields etc in the future.

Most important change is https://github.com/GREsau/schemars/pull/310, which keeps newlines unchanged during schema generation. This is important to preserve the lists, markdown code blocks, and markdown headings in our docs.

related: #1069

- Buffer log messages that are sent before subscribers are connected
- Include working directory in 'running build command' message
- Lower log level of 'building' message to `Debug`

related: https://github.com/dora-rs/dora-rs.github.io/pull/40

We forgot to create the working directory in a few cases in #901. This
PR fixes this by adding the proper `create_dir_all` calls.

Alternative to https://github.com/dora-rs/dora/pull/1064

Reorder fields and improve documentation

The python api library (dora-rs) is now missing py.typed, so mypy emits
error on import of dora.

In this PR, I just added py.typed to `apis/python/node/dora directory`.
Maturin automatically install the file to the package.

I've tested installation of this branch version like below, and I
confirmed py.typed is inside the site-packages/dora.

```shell
$ uv add --branch api_python-add_py_typed_marker "git+https://github.com/dieu-detruit/dora.git#subdirectory=apis/python/node"
```

## Target
opencv-plot on node-hub.

## Problem
Another node on hub like
[kornia-v4l-capture](https://github.com/kornia/dora-nodes-hub/tree/main/kornia-v4l-capture)
may output encoding in uppercase (e.g. RGB8)

The current code only allows lower case (rgb8) and causes error between
kornia-v4l-capture and this node.

## This PR
Take lowercase string for encodings and bbox formats before compairing
them.

Also includes a bit or regorganization to streamline the API.

There will be a 'running build command' message with more details later.