optimize CI/CD pipelines

CI/CD pipelines should be optimized for both performance and maintainability through strategic caching, script consolidation, and compilation optimization. This involves three key practices:

1. Implement proper caching strategies: Use comprehensive cache keys that include build identifiers and dependency checksums to ensure cache invalidation works correctly. For environment caching, include unique build IDs to prevent stale cache reuse.

2. Consolidate related scripts: Minimize the number of separate bash scripts by merging related functionality. This reduces maintenance overhead and simplifies pipeline complexity as the project grows.

3. Optimize compilation performance: Implement compilation caching (like ccache) for projects with significant build times to improve pipeline speed.

Example cache configuration:

plugins:
  - cache#v1.5.2:
      key: "venv---"
      path: ".venv"
      save: "pipeline"
      force: true

These optimizations ensure CI/CD pipelines remain fast, reliable, and maintainable as projects scale.