celestiaorg/go-header

AI Summary: The task involves modifying the validation logic within the `go-header` library's syncer. Specifically, the condition checking for the absence of synchronization parameters (`SyncFromHeight`, `SyncFromHash`, `PruningWindow`) needs to be corrected to ensure that only when all three are simultaneously zero or empty, the validation fails. This requires updating a conditional statement in the `options.go` file.

AI Summary: Optimize the `go-header` library's head and tail advancement algorithms. The current linear iteration and full header loading should be replaced with a more efficient method that only checks for header presence, similar to the existing `Has` method. This will improve performance by avoiding unnecessary header loading.

AI Summary: Migrate all instances of `context.WithTimeout` in the `go-header` library to `context.WithTimeoutCause`. This improves error handling by providing more informative error messages when timeouts occur, replacing the generic "context deadline exceeded" with the specific cause of the timeout.

AI Summary: The task involves refactoring the `go-header` Go library's data store to replace the use of `Batch` operations with database transactions (`Txn`) for improved atomicity, particularly in methods like `DeleteTo`. This ensures that multiple deletions are performed atomically, preventing inconsistencies. The refactoring requires identifying all places where `Batch` is used inappropriately and replacing them with `Txn`.