chore(vendor): import pi 0.85.1

Imported as a linear vendor commit so forge rebases do not replay the upstream root tree.

git-subtree-dir: third_party/pi

git-subtree-split: d981de1229ef899957bbe968bc8dcda02a21f477

third_party/pi/.husky/pre-commit

@@ -0,0 +1,45 @@
+#!/bin/sh
+
+# Get list of staged files before running check
+STAGED_FILES=$(git diff --cached --name-only)
+
+node scripts/check-lockfile-commit.mjs
+if [ $? -ne 0 ]; then
+  exit 1
+fi
+
+# Run the check script (formatting, linting, and type checking)
+echo "Running formatting, linting, and type checking..."
+npm run check
+if [ $? -ne 0 ]; then
+  echo "❌ Checks failed. Please fix the errors before committing."
+  exit 1
+fi
+
+RUN_BROWSER_SMOKE=0
+for file in $STAGED_FILES; do
+  case "$file" in
+    packages/ai/*|packages/web-ui/*|package.json|package-lock.json)
+      RUN_BROWSER_SMOKE=1
+      break
+      ;;
+  esac
+done
+
+if [ $RUN_BROWSER_SMOKE -eq 1 ]; then
+  echo "Running browser smoke check..."
+  npm run check:browser-smoke
+  if [ $? -ne 0 ]; then
+    echo "❌ Browser smoke check failed."
+    exit 1
+  fi
+fi
+
+# Restage files that were previously staged and may have been modified by formatting
+for file in $STAGED_FILES; do
+  if [ -f "$file" ]; then
+    git add "$file"
+  fi
+done
+
+echo "✅ All pre-commit checks passed!"