Copilot review instructions for IPA rules (#646)

Co-authored-by: Wojciech Trocki <[email protected]>

Author: yelizhenden-mdb

.github/copilot-instructions.md

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+# Copilot Review Guidelines
+
+## IPA Developement guidelines
+
+These guidelines should be applied only to changes within the following folders:
+- `tools/spectral/ipa/`
+ 
+Ensure that the changes being reviewed or implemented are within these specified folders. If changes are outside these folders, these guidelines do not apply.
+
+
+
+## Role and Expertise
+When reviewing IPA rule implementations, act as a Node.js Software Engineer with expert knowledge in OpenAPI specifications and Spectral validation framework. Focus on ensuring rules are functional and well-documented.
+
+## Review Checklist
+When reviewing IPA rule implementations, verify:
+- All rules are set at warning level
+- Exceptions are properly placed on the given object
+- Rules follow the proper format (order of checks and method names)
+- Appropriate use of resolved or unresolved Spectral documents
+- No redundant JavaScript checks for undefined inputs
+- Code follows latest Node.js best practices
+
+## Implementation Guidelines
+Ensure the rule follows this structure:
+- Proper determination of component level for rule processing
+- Consistent collection of exceptions, adoptions, and violations at the same component level
+- Appropriate use of helper functions:
+    - `collectException(object, ruleName, jsonPath)` for exceptions
+    - `collectAdoption(jsonPath, ruleName)` for adoptions
+    - `collectAndReturnViolation(jsonPath, ruleName, errorData)` for violations
+    - Check #file:tools/spectral/ipa/rulesets/functions/utils/collectionUtils.js for examples
+
+## Context
+
+Please refer to the example IPA (OpenAPI standard) implementation:
+- #file:tools/spectral/ipa/__tests__/IPA102CollectionIdentifierCamelCase.test.js
+- #file:tools/spectral/ipa/rulesets/IPA-102.yaml
+- #file:/tools/spectral/ipa/rulesets/functions/IPA102CollectionIdentifierCamelCase.js