chore(deps): upgrade ESLint ecosystem to v10

- ESLint 9 → 10
- @eslint/js 9 → 10
- eslint-plugin-jest 28 → 29
- typescript-eslint 8.55 → 8.56 (adds ESLint 10 peer dep)
- Added globals as explicit devDependency (removed from ESLint 10 bundle)

All lint rules pass clean. No config changes needed.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sjsyrek

CHANGELOG.md

@@ -15,6 +15,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Updated `@types/node` from v20 to v25
 - Updated inquirer from 12 to 13
 - Updated better-sqlite3 from 11 to 12
+- Updated typescript-eslint from 8.55 to 8.56 (ESLint 10 compatibility)
+- Upgraded ESLint from 9 to 10
+- Upgraded @eslint/js from 9 to 10
+- Upgraded eslint-plugin-jest from 28 to 29
+- Added globals as explicit dev dependency (no longer bundled with ESLint 10)
 
 ## [1.0.0] - 2026-02-17