修复appid提示不适用于所有对应适配器的问题

[idiotsj]

变更说明

• 将平台配置中共享 �ppid 字段的提示文案改为平台中性描述
• 同步更新后端配置元数据与前端中/英/俄文案，避免前后端说明不一致
• 不修改任何适配器配置结构和运行逻辑，仅修正文案提示

验证情况

• 未运行测试（仅文案/元数据修改）

Fixes #7107

Summary by Sourcery

Update configuration metadata hints to use platform-neutral AppID wording and align backend and frontend descriptions.

Enhancements:

• Clarify the shared AppID field hint to be platform-neutral across chat providers.

Documentation:

• Synchronize AppID configuration hint text across backend metadata and frontend i18n strings in Chinese, English, and Russian.

[gemini-code-assist]

Code Review

This pull request generalizes the appid configuration hint across the core configuration and multiple localization files (English, Russian, and Chinese), replacing platform-specific references to the QQ Official Bot with generic messaging platform terminology. A suggestion was made to improve the Russian translation to include instructions on how to obtain the App ID, ensuring it provides the same level of detail as the English and Chinese versions.

[gemini-code-assist]

The updated hint text is slightly less informative compared to the English and Chinese versions, as it omits the "how to obtain it" part. A more complete translation would be more helpful for Russian-speaking users.

Here's a suggested improvement to make it more explicit:

Suggested change

	"hint": "Обязательно. App ID текущей платформы сообщений. См. документацию по интеграции платформы."
	"hint": "Обязательно. App ID для текущей платформы. Как его получить, см. в документации по интеграции с платформой."

[sourcery-ai]

Hey - I've reviewed your changes and they look great!

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