Add backendRefs group and kind to httproute.yaml

[flipper]

When an HTTPRoute is created with an unset group, kind and weight, the fields are defaulted.

This causes tools like ArgoCD to detect a diff.

This PR sets the fields explicitly.

Summary by CodeRabbit

• Bug Fixes
  • Updated default HTTP route backend references to include the required Gateway API details, improving routing compatibility while preserving the configured service and port.

[coderabbitai]

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ℹ️ Recent review info

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📥 Commits

Reviewing files that changed from the base of the PR and between 067f7af and 2f1b04c.

📒 Files selected for processing (1)

• pkg/helm/templates/httproute.yaml

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Walkthrough

The Helm HTTPRoute template now includes explicit Gateway API group, kind, and weight fields in the default backend reference. The configured service name and port remain unchanged.

Changes

HTTPRoute backend configuration

Layer / File(s)	Summary
Define the backend reference pkg/helm/templates/httproute.yaml	The default backend reference sets an empty API group, Service kind, and weight 1. It retains the configured service name and port.

Estimated code review effort: 1 (Trivial) | ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change to add Gateway API group and kind fields to HTTPRoute backend references.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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