[sc-58699] Fix JQL array attributes and supporting child entities

[aj-chandel]

Description of changes

• Strip array indices and square brackets from field names in JQL queries for issues
• Include additional field names from child entities in JQL queries

API References

Pull request intention

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Code improvement (improve test coverage or code readability)

Pull request checklist

• I have performed a self-review of my own code
• I have added tests that prove my fix is effective or that my feature works
• I have updated documentation (if applicable)
• I have registered the new adapter (if applicable)
• I have added a smoke test for the new adapter (if applicable)
• Any secrets are redacted from smoke test fixtures and no PII is present (if applicable)

[Copilot]

Pull Request Overview

This PR fixes handling of array attributes and child entities in JQL (Jira Query Language) field parameter construction. The main purpose is to properly strip array indices from field names and include child entity attributes when building JQL queries.

• Strip array indices and square brackets from field names (e.g., customfield_10209[0] → customfield_10209)
• Include field names from child entities in JQL field parameter construction
• Refactor field parameter building to support entity configurations with nested child entities

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
pkg/jira-datacenter/datasource.go	Core logic changes: added array index removal and child entity field extraction
pkg/jira-datacenter/client.go	Added Entity field to Request struct to support entity configuration
pkg/jira-datacenter/adapter.go	Updated to pass entity configuration to datasource requests
pkg/jira-datacenter/datasource_test.go	Comprehensive test coverage for new functionality including array handling and child entities
pkg/jira-datacenter/adapter_test.go	Integration tests for adapter with child entity scenarios
pkg/jira-datacenter/config.go	Minor optimization moving group map initialization outside loop

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[dhanya-sgnl]

LGTM overall but I had one request and one nit.

[aj-chandel]

FYI..PR #140, needs to be merged to fix some of the int64/float changes in the framework. Some of the tests are failing as result of that.