feat: add terminal face

[PsiACE]

╭────────────────────────────── Bub ──────────────────────────────╮                                           
│                      .--------.    .--------.                   │                                           
│                      |  o==o  |    |  o==o  |                   │                                           
│                      '--------'    '--------'                   │                                           
│                o==o  emotion:neutral  note:Idle                 │                                           
│                                                                 │                                           
│ workspace: /home/xxxxxx/bubbuild/bub-face                       │                                           
│ model: openrouter:stepfun/step-3.5-flash                        │                                           
│ internal command prefix: ','                                    │                                           
│ shell command prefix: ',' at line start (Ctrl-X for shell mode) │                                           
│ type ',help' for command list                                   │                                           
╰─────────────────────────────────────────────────────────────────╯                                           
======== Running on http://127.0.0.1:28282 ========

╭──────────────── Bub ────────────────╮                                                                       
│        .--------.    .--------.     │                                                                       
│        |  \^^/  |    |  \^^/  |     │                                                                       
│        '--------'    '--------'     │                                                                       
│ \^^/  emotion:happy  note:Delighted │                                                                       
│                                     │                                                                       
│ Hello! How can I help you?          │                                                                       
╰─────────────────────────────────────╯