[Fix] Make --node optional to ensure it has an influence even when using --dev; renames --storage_path to --storage

[vicsn]

Motivation

Previously, when using --dev, the node ports would automatically be incremented alongside the the dev index. This makes it hard to indicate --peers on other machines, as you'll need to know the dev index / port number before it works. This design is similar to the --bft flag.

This PR also renames --storage_path to --storage in the CLI start command.

Test Plan

This only changes a node's behaviour when both --node and --dev are used.

Tested manually locally and on aws.

Related PRs

Needed because we're testing: #3163

[christianwwwwwwww]

LGTM 🤓

[vicsn]

Made an issue for the flaky test, which was already flaky before this PR: #3190

[howardwu]

• Does this change the production snarkos start command for any node operators?
• Does the devnet.sh script or .devnet/start.sh script need updating?
• Do the run-client.sh or run-prover.sh scripts need updating?
• Have the above items been tested by hand and confirmed to work as before?

[vicsn]

Note behavior only changes if you use both --node and --dev.

Does this change the production snarkos start command for any node operators?

Both devnet and canary do not use --dev, so not impacted.

Does the devnet.sh script or .devnet/start.sh script need updating?

They do not use --node, so not impacted.

Do the run-client.sh or run-prover.sh scripts need updating?

They do not use --dev or --node, so not impacted.

Have the above items been tested by hand and confirmed to work as before?

I ran devnet.sh and run-client.sh and they still work. I did not run .devnet/start.sh but it has the same --dev as devnet.sh.

[raychu86]

Tested on .devnet/start.sh and it seems to work.

[howardwu]

^ This commit renames --storage_path to --storage in the CLI start command.