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## Description
Make the pipeline cache mechanism optional, have it turned off by
default but use it for add and cognify like it has been used until now
## Type of Change
<!-- Please check the relevant option -->
- [ ] Bug fix (non-breaking change that fixes an issue)
- [x] New feature (non-breaking change that adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update
- [ ] Code refactoring
- [ ] Performance improvement
- [ ] Other (please specify):
## Pre-submission Checklist
<!-- Please check all boxes that apply before submitting your PR -->
- [x] **I have tested my changes thoroughly before submitting this PR**
- [x] **This PR contains minimal changes necessary to address the
issue/feature**
- [x] My code follows the project's coding standards and style
guidelines
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] I have added necessary documentation (if applicable)
- [x] All new and existing tests pass
- [ x I have searched existing PRs to ensure this change hasn't been
submitted already
- [x] I have linked any relevant issues in the description
- [x] My commits have clear and descriptive messages
## DCO Affirmation
I affirm that all code in every commit of this pull request conforms to
the terms of the Topoteretes Developer Certificate of Origin.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Introduced pipeline caching across ingestion, processing, and custom
pipeline flows with per-run controls to enable or disable caching.
* Added an option for incremental loading in custom pipeline runs.
* **Behavior Changes**
* One pipeline path now explicitly bypasses caching by default to always
re-run when invoked.
* Disabling cache forces re-processing instead of early exit; cache
reset still enables re-execution.
* **Tests**
* Added tests validating caching, non-caching, and cache-reset
re-execution behavior.
* **Chores**
* Added CI job to run pipeline caching tests.
<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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