op-chain-ops: improve error message

specs,op-node: Clarify max bytes per channel comparison

Improves the error message when reading a deploy config
to print the path. Will be helpful for CLI tooling that consumes
this function to give a better error message at runtime.

The exact requirement is that the input length is less than or equal
to the max bytes per channel. This comparison is done with inputLimit
in the RLP reader.

chore: Delete some unused flags

feat(docs): update readme

fix(ctb): resolve compiler warning

Resolves a small compiler warning. Nothing significant.

op-e2e: flip-flop test

This solves Issue #3709

op-e2e: test orphan L1 block with batch and replay batch + keep engine fc state in sync [bedrock]

ci: Codecov badges and ignore some files

predeploys: add L2 `ProxyAdmin`

fix(l2g): bug in state dumper