[Bug]: Default 'module' for controlnet via API

Nobody has claimed this yet.

### Checklist

- [X] The issue exists after disabling all extensions
- [X] The issue exists on a clean installation of webui
- [X] The issue is caused by an extension, but I believe it is caused by a bug in the webui
- [X] The issue exists in the current version of the webui
- [X] The issue has not been reported before recently
- [ ] The issue has been reported before but has not been fixed yet

### What happened?

Traced an issue to Forge, that I recently reported here -> Mikubill/sd-webui-controlnet#2679

I've implemented a very basic level of controlnet support in [my discord bot](https://github.com/altoiddealer/ad_discordbot), which currently sends values for: `image`, `model`, `module`, `guidance_end`, `weight`, and `enabled`.

**If I do not send a key for `module` in the payload**, it errors with `AttributeError: 'NoneType' object has no attribute 'slider_resolution'`

I'm calling this a bug, because this does not happen in current A1111.... if I repeat the same test but using A1111's API, it defaults the `module` to 'none'.

### Ideally, I am suggesting as a Feature Enhancement that missing keys may default to an appropriate `module` and/or `model` in the same way that ticking a "Control Type" radio button does in the WebUI. Or perhaps, a new key `control_type` could be introduced which would assert a default `model` and `module` by the same mechanism as the Radio buttons, with any explicitly specified `model` or `module` overriding the aforementioned default.

### Steps to reproduce the problem

1. Launch sd webui Forge using --api --listen
2. Send an image payload including minimum Controlnet keys, except for `module`

### What should have happened?

Default `module` to "none" like A1111, **_or even better, smartly default to an appropriate module_** (!!)

### What browsers do you use to access the UI ?

Google Chrome

### Sysinfo

[sysinfo-2024-03-05-19-32.json](https://github.com/lllyasviel/stable-diffusion-webui-forge/files/14500343/sysinfo-2024-03-05-19-32.json)

### Console logs

```Shell
*** Error running process: C:\0_SD\stable-diffusion-webui-forge\extensions-builtin\sd_forge_controlnet\scripts\controlnet.py
Traceback (most recent call last):
File "C:\0_SD\stable-diffusion-webui-forge\modules\scripts.py", line 803, in process
script.process(p, *script_args)
File "C:\0_SD\stable-diffusion-webui-forge\venv\lib\site-packages\torch\utils\_contextlib.py", line 115, in decorate_context
return func(*args, **kwargs)
File "C:\0_SD\stable-diffusion-webui-forge\extensions-builtin\sd_forge_controlnet\scripts\controlnet.py", line 546, in process
self.bound_check_params(unit)
File "C:\0_SD\stable-diffusion-webui-forge\extensions-builtin\sd_forge_controlnet\scripts\controlnet.py", line 519, in bound_check_params
unit.processor_res = int(preprocessor.slider_resolution.gradio_update_kwargs.get('value', 512))
AttributeError: 'NoneType' object has no attribute 'slider_resolution'

---
*** Error running process_before_every_sampling: C:\0_SD\stable-diffusion-webui-forge\extensions-builtin\sd_forge_controlnet\scripts\controlnet.py
Traceback (most recent call last):
File "C:\0_SD\stable-diffusion-webui-forge\modules\scripts.py", line 835, in process_before_every_sampling
script.process_before_every_sampling(p, *script_args, **kwargs)
File "C:\0_SD\stable-diffusion-webui-forge\venv\lib\site-packages\torch\utils\_contextlib.py", line 115, in decorate_context
return func(*args, **kwargs)
File "C:\0_SD\stable-diffusion-webui-forge\extensions-builtin\sd_forge_controlnet\scripts\controlnet.py", line 555, in process_before_every_sampling
self.process_unit_before_every_sampling(p, unit, self.current_params[i], *args, **kwargs)
KeyError: 0
```

### Additional information

_No response_

Start with extensions-builtin/sd_forge_controlnet/scripts/controlnet.py, especially bound_check_params at line 519 and process at line 546, then reproduce the API request that omits module. Done means the request handles a missing module like A1111, defaults it to "none" or an appropriate value, and no longer produces the shown AttributeError or KeyError.

Written by the indexing model from the issue text.