[FR] Add End-to-End Rule Feature Test Coverage

[shashank-elastic]

Repository Feature

Core Repo - (rule management, validation, testing, lib, cicd, etc.)

Problem Description

Create a comprehensive test that validates Detection-as-Code (DaC) functionality using rules that leverage all available rule features. This will ensure full feature coverage for rules and reduce risk of regressions during release cycles.

Desired Solution

• Use the Kibana UI to generate representative rules utilizing all possible rule type features (e.g., thresholds, exceptions, suppression, etc.).
• Export these rules as NDJSON.
• Use the CLI to:
  - [ ] Import the rules into the repo using import-rules
  - [ ] Export the rules back to Kibana via export-rules
• Store the generated rule TOML files as fixtures for regression testing.
• Add a corresponding test case in test_remote_cli.sh to validate this flow.
• Ensure this is run as part of every release cycle.

Considered Alternatives

Previously done in manual verification but needs to be preserved as a formal regression test.

Additional Context

NA