hemitrap: localnet fork testing (#706)

* hemitrap: localnet fork testing

* added an simple TESTING_FORK env variable that can be set when running localnet tests. when this is set, it will point at the forked daemons from the hemi-node repo
* added HEMITRAP.md documentation on how to run the deploy environment testing

* spelling fix from pr review

* fix duplicate var declaration

* Update e2e/proposer-code-1.2.sh

Co-authored-by: Joshua Sing <[email protected]>

* Update e2e/proposer-code-1.3.sh

Co-authored-by: Joshua Sing <[email protected]>

* move request bodies to env vars when setting proposer

* add note about hemitrap being not for production

* Update copyright year in main_test.go

---------

Co-authored-by: Joshua Sing <[email protected]>

Author: ClaytonNorthey92

e2e/HEMITRAP.md

@@ -0,0 +1,73 @@
+# Hemitrap
+
+Hemitrap is a testing/non-production feature that allows a user to fork a synced production 
+(testnet or mainnet) hemi node and run a local, isolated private network
+for (mainly) testing contract upgrades.
+
+## How to use
+
+You will need the hemi-node repo cloned
+
+```shell
+git clone https://github.com/hemilabs/hemi-node
+```
+
+Then, sync a node. 
+
+
+_NOTE_: As of now only testnet is supported.
+
+```shell
+cd /path/to/hemi-node
+
+./scripts/gen.sh testnet snap hemi-min
+
+docker compose -f ./testnet/docker-compose.yml up --profiles hemi-min
+```
+
+Let that sync.
+
+Once your node is synced, you should be able to tell by:
+
+_NOTE_: there are ways to do this in one command, but this works.
+
+```shell
+docker compose -f ./testnet/docker-compose.yml exec -it op-geth-l2
+geth attach datadir/geth/geth.ipc
+eth.syncing
+```
+
+Then, stop your containers (ctrl+c).
+
+Then, similar to the above, run the following:
+
+Before you run the below command, I update the `rollup.json`
+file to have the network run a little faster for local testing. Updating these
+two values:
+```json
+{
+    "max_sequencer_drift": 200,
+    "seq_window_size": 20
+}
+```
+
+```shell
+docker compose -f ./testnet/docker-compose.yml up --profiles hemitrap
+```
+
+Now you should have a local private network with your own sequencer running.
+
+### Ensure the proposer works
+
+The proposer will need to be updated, at the smart contract level in order to
+publish transactions.
+
+Please run one of these scripts, based on the current version you're running in
+your fork.
+
+_NOTE_: The upgrade program itself expects the proposer to be a certain "code".
+  So it's easiest to only run this once per fork.
+
+```shell
+./e2e/proposer-code-1.2.sh
+```