fix(sudo): preserve substitutions in backup shell commands (#11329)

AGENTS.md

@@ -179,6 +179,7 @@ Coolify seeds **instance-owned** rows at primary key `0`. That value is a sentin
 - Run `vendor/bin/pint --dirty --format agent` before finalizing changes
 - Every change must have tests — write or update tests, then run them. For bug fixes, follow TDD: write a failing test first, then fix the bug (see Test Enforcement below)
 - Check sibling files for conventions before creating new files
+- When adding remote shell commands, account for servers using non-root SSH users: commands pass through `parseCommandsByLineForSudo()`, so test pipelines, redirects, substitutions, and `sh -c`/`bash -c` scripts with the non-root sudo parser.
 
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