[Feature Request] Please add official support for the latest V4 release models

[Dason-zdc]

Summary / 概述

With the official GA release of the V4 model (V4 正式版), please consider adding native support and presets for it in the extension.

Currently, the extension's presets and Changelog have not yet been updated to reflect the latest V4 official release.

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Motivation / 需求背景

1. Out-of-the-box experience: Users currently have to manually configure custom endpoints and model identifiers.
2. Full feature compatibility: The official V4 model introduces updated context handling and output formats that benefit from first-class support in the extension.
3. Clarity: Updating the model picker and Changelog will help users quickly verify that the V4 official version is supported.

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Suggested Tasks / 期望改进

• Add the latest V4 official model ID (e.g., V4 / V4-Flash / V4-Pro) to the preset/dropdown model list.
• Verify streaming and parameter parsing compatibility with the V4 official API.
• Update the extension's CHANGELOG.md and documentation accordingly.

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Thank you for maintaining this project! Looking forward to the update.

[warrenwang10k]

This extension calls the official API by default, so there is no issue of out‑of‑date models.
If you have modified the API endpoint address in settings, please submit feedback to your corresponding API provider instead.