维护者确认：#1978 fix(desktop): classify incompatible market manifests（插件基座改动）

## 变更概述

PR [#1978](https://github.com/makecindy/cindy/pull/1978) 改到了插件基座：
- 改动涉及插件市场 manifest 兼容性分类逻辑
- 对应 `apps/desktop/src/main/plugin-market/` 路径

## 触发原因

pluginBase — 插件基座改动一律需要维护者明确确认后才能合并（不论 diff 大小、不因是 bugfix/纯技术改动豁免）。

## 确认方式

- 直接在 PR 上 **Approve** → 自动放行
- 需要作者修改 → **Request Changes**，作者改完后重新 Approve 即放行

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关联 PR:#1978(作者 @yuaiccc);本 issue 由 review-pr 流程自动创建,用于先讨论该 PR 涉及的插件基座改动(影响全部已装插件),维护者确认后 PR 会恢复推进。

Review PR #1978 and the plugin-market code under apps/desktop/src/main/plugin-market/ first. This issue is a maintainer confirmation gate for plugin-base changes affecting installed plugins; it is done when a maintainer approves the PR or requests changes and later approves the update.

Written by the indexing model from the issue text.