Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Add entries for the new 'backlog' and 'listen_threads' config options
introduced in commits 57c88fd40 ("router: Make the number of router
threads configurable") and 76489fb7e ("conf, router: Make the listen(2)
backlog configurable").

Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

- Missing end quotes
- Wrong indentation
- Missing langMod parameter definition
- Wrong type specification

Fixes: ae4795aa1 ("docs/openapi: Add entries for the new /status/modules endpoint")
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

Unit now shows the loaded language modules under /status/modules. This
functionality was added in commit 707f4ef82 ("status: Show list of
loaded language modules").

[ Commit message - Andrew ]
Co-developed-by: Andrew Clayton <a.clayton@nginx.com>
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

This was renamed to be more accurate as /status is not just about
statistics, as it also now shows the loaded language modules.

[ Commit message - Andrew ]
Signed-off-by: Andrew Clayton <a.clayton@nginx.com>

* application subcommand UI schema
* application subcommand handler
* additions to unit-client-rs to expose application API
* elaborate on OpenAPI error handling
* adds wasm and wasi app schemas to OpenAPI Schema
* updates tools/unitctl OpenAPI library
* many linter fixes
* README.md updates

Signed-off-by: Ava Hahn <a.hahn@f5.com>

This change makes NJS module incompatible with NJS older than 0.8.3.
Therefore, the configuration version check has been adjusted accordingly.

This change was introduced in NJS 0.8.3 here:
<https://hg.nginx.com/njs/rev/ad1a7ad3c715>