feat(core): add userStyle option to ensure highest priority, closes #1110

[Mister-Hope]

No description provided.

[coveralls]

Pull Request Test Coverage Report for Build 23836340449

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.05%) to 75.712%

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Totals
Change from base Build 23834724787:	-0.05%
Covered Lines:	751
Relevant Lines:	991

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💛 - Coveralls

[Copilot]

Pull request overview

Adds a userStyle theme option intended to inject a user-provided style file late in the client entry, so it has higher CSS precedence in the final bundle.

Changes:

• Extend core types (ThemeObject, ThemeInfo, App) with an optional userStyle string.
• Resolve userStyle through theme inheritance and attach it to the app instance.
• Inject userStyle as an additional import in the generated @internal/clientConfigs temp module.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
packages/core/src/types/theme.ts	Adds userStyle?: string to theme typing and resolved theme info typing.
packages/core/src/types/app/app.ts	Adds userStyle?: string onto the App type surface.
packages/core/src/app/setupAppThemeAndPlugins.ts	Copies resolved themeInfo.userStyle onto app.userStyle.
packages/core/src/app/resolveThemeInfo.ts	Attempts to merge userStyle through theme inheritance.
packages/core/src/app/prepare/prepareClientConfigs.ts	Adds an import for app.userStyle in the generated client configs entry.

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[Copilot]

userStyle is assigned during app creation (setupAppThemeAndPlugins() is called from createDevApp/createBuildApp before app.init()), so placing it under AppPropertiesInitialized and documenting it as only available after initialization is misleading. Consider moving userStyle to AppPropertiesBase, or adjust the initialization flow/docs so it truly becomes available only after init().