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fix: validate delta output and integration test skips
fix: validate delta output and integration test skips
Use descriptor-relative no-follow writes for destination confinement
Make parsed receiver and scanner options affect behavior or fail explicitly
Require server-side authorization for destination and deletion
Harden receiver cancellation, deadlines, and manifest validation
Implement checksum-aware incremental synchronization
Make CI exercise dev and execute meaningful integration/fuzz coverage
refactor: extract CLI parser helpers, fix validation bugs