Describe the feature

We need to implement two functions to persist batches of trie branch nodes into the historical proof storage DB. These are primarily used for saving existing state.

Goals

• Implement store_account_branches
• Implement store_storage_branches

Acceptance Criteria:

• Both functions insert/update the correct entries in the MDBX tables.
• Functions support batch insertion efficiently (atomic transaction).
• Unit tests

Additional context

No response