Documentation visual asset attribution

Reference layout and CC-Switch instructional screenshots:
PackyAPI documentation, https://docs.packyapi.ai/docs/register/
CC-Switch screenshots: https://docs.packyapi.ai/docs/ccswitch/3-codex.html
Images are credited on the relevant tutorial pages. They illustrate the upstream
CC-Switch application, not an endorsement or affiliation. WorkBuddy's product
icon is reproduced for identification from the reference documentation.

The login, create-key, model-catalog and quota screenshots illustrate AI6XER's
own New API interface. No credentials are included. Login is a rendering of the
installed frontend build; the other screenshots are from the live console.

Sidebar icons use the same upstream Iconify collections as the reference.
Original vector paths are unchanged; display size and monochrome color are
controlled by the site's CSS. Metadata: https://github.com/iconify/icon-sets

Akar Icons - Arturo Wibawa - MIT
https://github.com/artcoholic/akar-icons
Emoji One Monotone - Emoji One - CC BY 4.0
https://github.com/EmojiTwo/emojitwo
Font Awesome 6 - Dave Gandy / Fonticons, Inc. - CC BY 4.0 (icons)
https://github.com/FortAwesome/Font-Awesome
Fluent UI System Icons - Microsoft Corporation - MIT
https://github.com/microsoft/fluentui-system-icons
Game Icons, caduceus - Lorc / GameIcons - CC BY 3.0
https://game-icons.net/1x1/lorc/caduceus.html
HeroIcons - Refactoring UI Inc. - MIT
https://github.com/tailwindlabs/heroicons
Hugeicons - Hugeicons - MIT
https://icon-sets.iconify.design/icon-sets/hugeicons/
Google Material Icons - Material Design Authors - Apache 2.0
https://github.com/material-icons/material-icons
Material Icon Theme - Material Extensions - MIT
https://github.com/material-extensions/vscode-material-icon-theme
Material Symbols - Google - Apache 2.0
https://github.com/google/material-design-icons
Material Design Icons - Pictogrammers - Apache 2.0
https://github.com/Templarian/MaterialDesign
MingCute - MingCute Design - Apache 2.0
https://github.com/Richard9394/MingCute
Myna UI Icons - Praveen Juge - MIT
https://github.com/praveenjuge/mynaui-icons
Noto Emoji - Google Inc. - Apache 2.0
https://github.com/googlefonts/noto-emoji
Pepicons Pop - CyCraft - CC BY 4.0
https://github.com/CyCraft/pepicons
Simple Icons - Simple Icons Collaborators - CC0 1.0
https://github.com/simple-icons/simple-icons
TDesign Icons - TDesign - MIT
https://github.com/Tencent/tdesign-icons
Unicons Solid - Iconscout - Apache 2.0
https://github.com/Iconscout/unicons
VSCode Icons - Roberto Huertas - MIT
https://github.com/vscode-icons/vscode-icons

License texts are provided in this directory. Product names and logos remain
the trademarks of their respective owners.