ADFA-4756: auto-capture rootfs edition sizes for the offline fallback#221
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The system edition sizes fall back to a saved value when the device is offline. That fallback was a hand-maintained table of constants that drifts when the published rootfs images change. It is now captured automatically at package time. - Gradle task refreshRootfsSizes reads each edition's stable latest_<tier>_<abi>.meta4 <size> and writes assets/rootfs_sizes.csv. It runs on preBuild, only rewrites the file when a byte size actually changed (no spurious git churn), and never fails the build on network error (keeps the committed CSV as the last known). - RootfsCatalog reads that CSV as the offline fallback; the previous constants stay only as an emergency net for a missing/corrupt CSV. - InstallationPlanner threads the app context so the packaged CSV can be read. - Seed CSV committed with the current known sizes.
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The system edition sizes fall back to a saved value when the device is offline. That fallback was a hand-maintained table of constants that drifts when the published rootfs images change. It is now captured automatically at package time.