* fixes

* op-supervisor: head db init fix, logging, op-node debug logging

* interop: track recent safety data

* Early integration and refactor of Views and SafetyIndex

* update for rebase

* rename RecentSafetyIndex ; reorganize

* refactor Pointer method on iterator

* logging

* Delete unused Tracking Code ; New ChainsDB.Safest

* fix naming miss

* fix mistaken line deletion

* Update op-supervisor/supervisor/backend/safety/safety.go
Co-authored-by: protolambda <proto@protolambda.com>

* Add issue numbers to TODO ; Address Proto Comments

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Co-authored-by: protolambda <proto@protolambda.com>

* op-supervisor: register each L2 block, refactor
Signed-off-by: protolambda <proto@protolambda.com>

* op-supervisor: fix lint and tests

* op-supervisor: minor fixes, logging

* op-supervisor: fix semgrep

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Signed-off-by: protolambda <proto@protolambda.com>

* Rebase: op-supervisor: Include executing message info when storing logs.

Takes from aj/parse-exec-msg and makes the following updates:
- uses upstream ABI definitions for identifier hash
- removes the core recording functionality for the moment
- fixes up inconsistent typing and merge conflicts due to rearranged packages

* Incorporate new ABI format

* remove trailing newline in contract

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Co-authored-by: Adrian Sutton <adrian@oplabs.co>

* op-supervisor: Introduce head tracker

* op-supervisor: Move log db to subpackage of db.

* op-supervisor: Route all updates through a common db that can track heads

* op-supervisor: Remove unused error.

* op-supervisor: Remove operations - it fits into a later PR.

* op-supervisor: Fix semgrep

* op-supervisor: Move resuming databases into ChainsDB so it can later update the chain heads too.

* op-supervisor: Move TruncatedHash and ExecutingMessage out of db package

* op-supervisor: Introduce EntryIdx type

Will make it clear when a value is a block number vs a db entry index when adding head tracking.

Ensures the database is rewound to the point where it can retry storing the logs for the block rather than having some logs already exist.

Executing messages aren't extracted yet but basic log information is hashed and written.