feat(i18n): add client translation workflow script

i18n.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+CLIENT_DIR="${SCRIPT_DIR}/src/client"
+
+pnpm --dir "${CLIENT_DIR}" run translation:extract
+pnpm --dir "${CLIENT_DIR}" run translation:scan
+pnpm --dir "${CLIENT_DIR}" run translation:translate

scripts/i18n.test.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+SCRIPT_PATH="${ROOT_DIR}/i18n.sh"
+TMP_DIR="$(mktemp -d)"
+FAKE_BIN="${TMP_DIR}/bin"
+LOG_FILE="${TMP_DIR}/pnpm.log"
+
+cleanup() {
+  rm -rf "${TMP_DIR}"
+}
+trap cleanup EXIT
+
+mkdir -p "${FAKE_BIN}"
+
+cat >"${FAKE_BIN}/pnpm" <<'STUB'
+#!/usr/bin/env bash
+printf '%s\n' "$*" >>"${PNPM_LOG_FILE}"
+if [[ -n "${FAIL_ON_COMMAND:-}" && "$*" == *"${FAIL_ON_COMMAND}"* ]]; then
+  exit 42
+fi
+STUB
+chmod +x "${FAKE_BIN}/pnpm"
+
+run_wrapper() {
+  (cd "${TMP_DIR}" && PATH="${FAKE_BIN}:${PATH}" PNPM_LOG_FILE="${LOG_FILE}" "$@" "${SCRIPT_PATH}")
+}
+
+run_wrapper env
+
+cat >"${TMP_DIR}/expected-success.log" <<EOF
+--dir ${ROOT_DIR}/src/client run translation:extract
+--dir ${ROOT_DIR}/src/client run translation:scan
+--dir ${ROOT_DIR}/src/client run translation:translate
+EOF
+diff -u "${TMP_DIR}/expected-success.log" "${LOG_FILE}"
+
+: >"${LOG_FILE}"
+set +e
+run_wrapper env FAIL_ON_COMMAND=translation:scan
+exit_code=$?
+set -e
+
+[[ "${exit_code}" -eq 42 ]]
+cat >"${TMP_DIR}/expected-failure.log" <<EOF
+--dir ${ROOT_DIR}/src/client run translation:extract
+--dir ${ROOT_DIR}/src/client run translation:scan
+EOF
+diff -u "${TMP_DIR}/expected-failure.log" "${LOG_FILE}"