feat: enhance CI pipeline with MR UI integrations and cache optimizations

Description

This MR introduces significant improvements to our GitLab CI pipeline to optimize build times and enhance the developer experience during code review.

Key Changes:

• Pipeline Efficiency:
  • Added strict workflow:rules to prevent the pipeline from running duplicate jobs on standard branch pushes. It now explicitly targets merge_requests, tags, and default branch pushes.
  • Implemented a setup stage for npm ci. The cache policy has been globally changed to pull, preventing heavy cache uploads on parallel test/build/lint jobs.
• GitLab MR Integrations:
  • Configured Native Code Coverage (Cobertura XML from Vitest) with inline MR annotations and coverage percentages.
  • Added eslint-formatter-gitlab to surface linting errors as inline Code Quality annotations directly in the MR diff UI.

Related Issue

Closes #[Issue_Number]

Type of Change

• Core CI/CD Improvement
• Bug fix
• New feature