add qwen3.5-plus

[franchixco]

in the latest version of qwen-code, we have access to qwen3.5-plus, codename "coder-model"

[luanweslley77]

@franchixco

Hi, i made a PR who solves this, is only necessary to put in your opencode.jsonc

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["opencode-qwencode-auth@git+https://github.com/luanweslley77/opencode-qwencode-auth.git#feat/v1.5.0-rate-limit-fix"]
}