Initialize Rust GPUI browser shell

scripts/audit_source_lines.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+max_lines=500
+status=0
+
+while IFS= read -r -d '' file; do
+  lines="$(wc -l < "${file}" | tr -d ' ')"
+  if [[ "${lines}" -gt "${max_lines}" ]]; then
+    echo "${file}: ${lines} lines exceeds ${max_lines}"
+    status=1
+  fi
+done < <(find crates -name '*.rs' -print0)
+
+exit "${status}"