This PR is ready for review. 🚀

The PR: Lint workflow is now passing successfully. Here's a summary of what's included:

New workflow:

• .github/workflows/pr_lint.yml — runs golangci-lint-action@v9 on every PR.

Linter configuration (.golangci.yml v2 format):

• Default (standard) linters enabled.
• Additional linters: predeclared, godot, asasalint, asciicheck, bidichk, decorder, durationcheck.

Code fixes across the codebase:

• godot — comments now end with a period.
• predeclared — renamed new() to newAutoDNSProvider() to avoid shadowing.
• unused — removed unused function cfCommentAndTagsA.
• staticcheck QF1001 — applied De Morgan's law.
• staticcheck QF1003 — converted if/else chains to switch statements.
• staticcheck QF1004 — replaced strings.Replace(..., -1) with strings.ReplaceAll.
• staticcheck QF1007 — merged conditional assignments into declarations.
• staticcheck QF1008 — removed redundant embedded field names from selectors.
• staticcheck ST1023 — omitted inferable type from variable declaration.

Not included (per issue description):

• containedctx, bodyclose, copyloopvar, errname, errorlint — these require further investigation and code changes.

Wow! Thanks for all the cleanups and fixes!

All tests pass with my creds: #4059