add deployment config for sb-on-demand-crank, fix BN import

cd/switchboard-crank.toml

@@ -0,0 +1,13 @@
+app = "switchboard-crank"
+kill_signal = "SIGINT"
+kill_timeout = 5
+
+[build]
+  dockerfile = "../ts/client/scripts/Dockerfile.scripts"
+
+[experimental]
+  cmd = ["yarn", "tsx", "ts/client/scripts/sb-on-demand-crank.ts"]
+
+[[vm]]
+  size = "shared-cpu-1x"
+  memory = "512mb"

ts/client/scripts/Dockerfile.scripts

@@ -0,0 +1,22 @@
+FROM node:18 as builder
+
+WORKDIR /app
+ 
+COPY package.json yarn.lock ./
+RUN yarn install
+ 
+COPY ts ts
+
+RUN ls
+
+# scripts are run with tsx, no upfront build needed
+# RUN yarn build
+
+FROM node:18-slim as run
+
+LABEL fly_launch_runtime="nodejs"
+
+COPY --from=builder /app /app
+
+WORKDIR /app
+ENV NODE_ENV production

ts/client/scripts/sb-on-demand-crank.ts

@@ -1,4 +1,4 @@
-import { AnchorProvider, Wallet } from '@coral-xyz/anchor';
+import { AnchorProvider, BN, Wallet } from '@coral-xyz/anchor';
 import {
   AccountInfo,
   Cluster,