Sticker generation was failing when using newer GPT image models
(gpt-image-1, gpt-image-1-mini, gpt-image-1.5). The issue occurred
because stickers requested 256x256 size, but these models only support
1024x1024, 1536x1024, 1024x1536, and auto.
To reproduce, send `!bai sticker Something` to an agent configured
with a GPT image model. The error was:
invalid_request_error: Invalid value: '256x256'. Supported values
are: '1024x1024', '1024x1536', '1536x1024', and 'auto'. (param: size)
(code: invalid_value)
The fix replaces the hardcoded 256x256 size override with a
`smallest_size_possible` flag, letting each provider determine the
appropriate sticker size based on the model being used.
The `openai_compat` provider still defaults to requesting 256x256 in all cases
(regardless of model name).
This is based on the work done in https://github.com/etkecc/baibot/pull/60 by https://github.com/Fmstrat (Ben Curtis),
with various changes on top to make the code more idiomatic and flexible.
This commit squashes the following patches (newest first):
- Improve handling of `user.avatar` configuration (null & empty string being the same now) and add support for a special `keep` value
- Minor import reordering
- Simplify avatar configuration (`user.avatar.source` -> `user.avatar`)
- Combine `logo_bytes` and `mime_type` determination logic and do not fall back to default avatar if reading the custom avatar file fails
- Switch from deprecated `mime_guess::guess_mime_type(avatar_path)` to `mime_guess::from_path(avatar_path).first_or_octet_stream()`
- Relax `mime_guess` constraint and order alphabetically
- Use `mime` from `mxlink`
- Add mime-type support and switch to user.avatar.source
- (Original work by Fmstrat) Add support for custom avatars
Co-authored-by: Fmstrat <nospam@nowsci.com>
Switches `async-openai` from our own etkecc fork (0.28.1-patched) to the
official crates.io version 0.31.1.
We adapt to async-openai's types reorganization and making use of crate
features to only enable what we need.
