* perf(backup): batch database operations during restore
Reduce overhead by chunking manga and repo restoration into
transactions of 100 entries. Categories now restored in a single
transaction. Optimized DatabaseHandler to reuse existing transaction
contexts instead of creating redundant nested ones.
Changed TransactionElement to internal to allow AndroidDatabaseHandler
to check transaction state from the same package.
* fix(backup): make restore progress and errors thread-safe
Use AtomicInteger for progress and synchronizedList for errors to
prevent race conditions during concurrent restoration coroutines.
* perf(backup): update progress notification only once per chunk
Reduce UI/IPC overhead by moving notification updates out of the inner
loop, triggering them only after each 100-item transaction chunk.
Reduced on my emulator from 46 seconds to 27
* fix: remove invalid awaitAsOne() call on insert() return type
categoriesQueries.insert() returns Long (the inserted row ID), not an
ExecutableQuery<T>, so awaitAsOne() is not applicable.
* fix(feedback): Use `CopyOnWriteArrayList` and kotlin `AtomicInt`, add a changelog entry
Note that using kotlin `AtomicInt` instead of java `AtomicInteger` requires opting into an experimental API.
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Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
Luca Auer
06497622f6