Remove workers section deprecation & simplify template logic

[Miretpl]

TBD

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[Miretpl]

All tests passed locally. Conflicts due to merged #66626, so it's not something really big.

[potiuk]

@Miretpl A few things need addressing before review — see our Pull Request quality criteria.

• ❌ Merge conflicts. See docs.

No rush.

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Drafted-by: Claude Code (Opus 4.7); reviewed by @potiuk before posting