Ensure file handles are correctly disposed#451

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KodrAus wants to merge 4 commits intodatalust:devfrom

KodrAus:fix/invalid-delete

Commits on Mar 27, 2026

track active readers/appenders in test filesystem
KodrAus
committed

Commits on Mar 28, 2026

return correct file when replacing in tests
KodrAus
committed

Commits on Mar 30, 2026