* op-supervisor: Support recording executing message info

* op-supervisor: Reduce permissions

* op-supervisor: Implement recovery for entry db

* op-supervisor: Track size in entrydb instead of last entry idx

* op-supervisor: Trim log entries back to the last valid ending point

* op-supervisor: Remove the manual recover operations since recovery at startup is automatic

* op-supervisor: Add support for writing multiple entries in a single write

* op-supervisor: Write all entries for a log in one append call.

Only update in-memory state after the write succeeds.

* op-supervisor: Handle partial writes

* op-supervisor: Extract logic to reverse an init event

* op-supervisor: Use errors.New

* op-supervisor: Combine the two AddLog variants.

* op-supervisor: Remove place holder tests.

* op-supervisor: Separate Executes and Contains queries

* op-supervisor: Only read executing message when it is actually used.