fail on error in helper shell scripts

ensures that CI throws errors properly within GHA

build.sh

@@ -1,3 +1,6 @@
+#!/bin/bash
+set -e
+
 echo "generating schema types for client, common"
 
 cd server

generate.sh

@@ -1,3 +1,6 @@
+#!/bin/bash
+set -e
+
 echo "generating schema types for client, common"
 
 cd server

initialize.sh

@@ -1,3 +1,6 @@
+#!/bin/bash
+set -e
+
 echo "installing \`homebrew\` for macOS"
 
 /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

lint.sh

@@ -1,3 +1,6 @@
+#!/bin/bash
+set -e
+
 echo "linting \`client\`"
 
 cd client

npm-ci.sh

@@ -1,3 +1,6 @@
+#!/bin/bash
+set -e
+
 echo "running \`npm install\` for \`common\`"
 cd common
 npm ci

npm-i.sh

@@ -1,3 +1,6 @@
+#!/bin/bash
+set -e
+
 echo "running \`npm install\` for \`common\`"
 cd common
 npm i