fix(cli): fix page files watching and add .git as default for monorepos

[Mister-Hope]

No description provided.

[Mister-Hope]

Adding .git to default is necessary if users are using a git submodule as a docs directory.

The page watcher will walk completely throught .git/indexes.

[Copilot]

Pull request overview

Updates VuePress defaults and dev-mode file watching to better handle monorepos by ignoring .git, and refines the chokidar ignored-path matching logic to avoid unnecessary directory traversal.

Changes:

• Add !.git to the default pagePatterns in core app options.
• Update core test expectations for the new default pagePatterns.
• Adjust CLI dev page-file watcher ignore logic to match ignore patterns against relative paths.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
packages/core/tests/app/resolveAppOptions.spec.ts	Updates the default options test to expect !.git in pagePatterns.
packages/core/src/app/resolveAppOptions.ts	Adds !.git to the runtime default pagePatterns.
packages/cli/src/commands/dev/watchPageFiles.ts	Refines ignored matching to use a consistent relative path for ignore/page matchers.

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[Copilot]

The default pagePatterns has been updated here to include !.git, but the AppConfigCommon.pagePatterns JSDoc still documents the old default (missing !.git). Please update the JSDoc default in packages/core/src/types/app/options.ts to keep the public type docs consistent with runtime defaults.