Use reflect.TypeFor instead of reflect.TypeOf((*T)(nil)).Elem()

[pietern]

Summary

• Replace the verbose reflect.TypeOf((*T)(nil)).Elem() idiom with reflect.TypeFor[T](), available since Go 1.22
• Delete the now-redundant calladapt.TypeOf helper
• Add a ruleguard lint rule to prevent reintroduction

Test plan

• go build ./...
• go test for all modified packages
• golangci-lint run ./... passes
• Verified lint rule fires on the old pattern

This pull request was AI-assisted by Isaac.

[github-actions]

Approval status: pending

/bundle/ - needs approval

Files: bundle/direct/dresources/adapter.go
Suggested: @denik
Also eligible: @shreyas-goenka, @andrewnester, @anton-107, @janniklasrose, @lennartkats-db

General files (require maintainer)

Files: libs/calladapt/calladapt.go, libs/calladapt/calladapt_test.go, libs/calladapt/validate_test.go, libs/dyn/convert/struct_info.go, libs/gorules/rule_reflect_typefor.go, libs/utils/utils.go
Based on git history:

• @denik -- recent work in bundle/direct/dresources/, libs/dyn/convert/, libs/calladapt/

_{Any maintainer (@andrewnester, @anton-107, @denik, @shreyas-goenka, @simonfaltum, @renaudhartert-db) can approve all areas.
See OWNERS for ownership rules.}