Impossible to load data after a node reboot

### Describe the problem you discovered

A node lost its power and couldn't load its data anymore after the reboot.

Reboot looping on this issue:

It tries to load an empty transaction (everything is default values in the transaction)

### Describe the solution you'd like

We might need some corruption detection, truncate tool etc.

### Epic

_No response_

No source files, tests, or entry points are named. Start by reproducing the reboot loop and tracing how the node loads the empty transaction after power loss; done means detecting the corruption and providing a validated recovery or truncation path.

Written by the indexing model from the issue text.