Bump typescript from 5.9.2 to 6.0.2

[wojtekmaj]

Upgrade TypeScript to 6.0.2 and apply the minimal TS 6 config cleanup.

[Copilot]

Pull request overview

Upgrades the repository’s TypeScript toolchain to v6.0.2 and adjusts TypeScript configuration to align with the updated version.

Changes:

• Bump typescript devDependency from ^5.9.2 to ^6.0.2.
• Regenerate/update Yarn lockfile entries for the new TypeScript version.
• Remove the strict compiler option from tsconfig.json.

Reviewed changes

Copilot reviewed 1 out of 3 changed files in this pull request and generated no comments.

File	Description
package.json	Updates TypeScript devDependency to ^6.0.2.
yarn.lock	Updates locked TypeScript and related patch resolution/checksums to 6.0.2.
tsconfig.json	Removes strict from compilerOptions (changes type-checking strictness).

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