[epociask/indexer.architecture] Indexer Architectural Docs

Add cannon-prestate as prereq to devnet-up

The devnet-up ultimately requires the cannont-prestate target to have
already executed, or the script errors out.  Consequently, for someone
checking out the repo if they simply do a:

```
make && make devnet-up
```

Things still fail.  This change simply mirrors a similar check added to
the e2e Makefile.

op-program: Support prefetching l2-transactions

feat(indexer): wire up rpc client metrics

fix(indexer): Use subsystem rather than label to differentiate between l1/l2

ci: Require cannon-go-lint-and-test to pass before merging

op-wheel: add engine-api utils

Allow passing Config and Value to TxMgr

cannon: Prevent deadlock on pre-image reads

Reading a FileChannel that does not have a writer blocks
indefinitely. This occurs in cannon whenever the pre-image oracle
server shuts down prematurely. We add a new io.ReadWriter that can
detect when a FileChannel would otherwise block indefinitely.

fix(indexer): e2e test lifecycle

op-challenger: Use gzip encoded proofs and snapshots

Add ability to restrict the networks that op-node discovers peers on

op-challenger: Include the op-program host binary in docker image.

op-challenger: Detect already resolved games at startup

Update rollup-node-p2p.md

Avoids the need to manually specify the op-program binary to run as the cannon pre-image server.