chore: add balances restore to the portal loop (gnolang#3220)

## Description

This PR allows for a balances restore for the portal loop.

<details><summary>Contributors' checklist...</summary>

- [x] Added new tests, or not needed, or not feasible
- [x] Provided an example (e.g. screenshot) to aid review or the PR is
self-explanatory
- [x] Updated the official documentation or not needed
- [x] No breaking changes were made, or a `BREAKING CHANGE: xxx` message
was included in the description
- [ ] Added references to related issues and PRs
- [ ] Provided any useful hints for running manual tests
</details>

misc/loop/cmd/snapshotter.go

@@ -150,6 +150,7 @@ func (s snapshotter) startPortalLoopContainer(ctx context.Context) (*types.Conta
 		Env: []string{
 			"MONIKER=the-portal-loop",
 			"GENESIS_BACKUP_FILE=/backups/backup.jsonl",
+			"GENESIS_BALANCES_FILE=/backups/balances.jsonl",
 		},
 		Entrypoint: []string{"/scripts/start.sh"},
 		ExposedPorts: nat.PortSet{

misc/loop/scripts/pull-gh.sh

@@ -6,6 +6,10 @@ TMP_DIR=temp-tx-exports
 # that the portal loop use when looping (generating the genesis)
 MASTER_BACKUP_FILE="backup.jsonl"
 
+# The master balances file will contain the ultimate balances
+# backup that the portal loop uses when looping (generating the genesis)
+MASTER_BALANCES_FILE="balances.jsonl"
+
 # Clones the portal loop backups subdirectory, located in BACKUPS_REPO (tx-exports)
 pullGHBackups () {
   BACKUPS_REPO=https://github.com/gnolang/tx-exports.git
@@ -32,8 +36,10 @@ pullGHBackups
 
 # Combine the pulled backups into a single backup file
 TXS_BACKUPS_PREFIX="backup_portal_loop_txs_"
+BALANCES_BACKUP_NAME="backup_portal_loop_balances.jsonl"
 
 find . -type f -name "${TXS_BACKUPS_PREFIX}*.jsonl" | sort | xargs cat > "temp_$MASTER_BACKUP_FILE"
+find . -type f -name "${BALANCES_BACKUP_NAME}" | sort | xargs cat > "temp_$MASTER_BALANCES_FILE"
 
 BACKUPS_DIR="../backups"
 TIMESTAMP=$(date +%s)
@@ -47,10 +53,22 @@ if [ -e "$BACKUPS_DIR/$MASTER_BACKUP_FILE" ]; then
   echo "Renamed $MASTER_BACKUP_FILE to ${MASTER_BACKUP_FILE}-legacy-$TIMESTAMP"
 fi
 
+# Check if the master balances backup file already exists
+if [ -e "$BACKUPS_DIR/$MASTER_BALANCES_FILE" ]; then
+  # Back up the existing master txs file
+  echo "Master balances backup file exists, backing up..."
+  mv "$BACKUPS_DIR/$MASTER_BALANCES_FILE" "$BACKUPS_DIR/${MASTER_BALANCES_FILE}-legacy-$TIMESTAMP"
+
+  echo "Renamed $MASTER_BALANCES_FILE to ${MASTER_BALANCES_FILE}-legacy-$TIMESTAMP"
+fi
+
 # Use the GitHub state as the canonical backup
 mv "temp_$MASTER_BACKUP_FILE" "$BACKUPS_DIR/$MASTER_BACKUP_FILE"
 echo "Moved temp_$MASTER_BACKUP_FILE to $BACKUPS_DIR/$MASTER_BACKUP_FILE"
 
+mv "temp_$MASTER_BALANCES_FILE" "$BACKUPS_DIR/$MASTER_BALANCES_FILE"
+echo "Moved temp_$MASTER_BALANCES_FILE to $BACKUPS_DIR/$MASTER_BALANCES_FILE"
+
 # Clean up the temporary directory
 cd ..
 rm -rf $TMP_DIR

misc/loop/scripts/start.sh

@@ -7,12 +7,15 @@ RPC_LADDR=${RPC_LADDR:-"tcp://0.0.0.0:26657"}
 CHAIN_ID=${CHAIN_ID:-"portal-loop"}
 
 GENESIS_BACKUP_FILE=${GENESIS_BACKUP_FILE:-""}
+GENESIS_BALANCES_FILE=${GENESIS_BALANCES_FILE:-""}
 
 SEEDS=${SEEDS:-""}
 PERSISTENT_PEERS=${PERSISTENT_PEERS:-""}
 
 echo "" >> /gnoroot/gno.land/genesis/genesis_txs.jsonl
+echo "" >> /gnoroot/gno.land/genesis/genesis_balances.jsonl
 cat "${GENESIS_BACKUP_FILE}" >> /gnoroot/gno.land/genesis/genesis_txs.jsonl
+cat "${GENESIS_BALANCES_FILE}" >> /gnoroot/gno.land/genesis/genesis_balances.jsonl
 
 # Initialize the secrets
 gnoland secrets init