chore: import upstream snapshot with attribution

kt-kernel/scripts/install-git-hooks.sh

@@ -0,0 +1,57 @@
+#!/usr/bin/env sh
+# Install git hooks from kt-kernel/.githooks into the monorepo's .git/hooks by
+# creating symlinks (or copying if symlink fails).
+
+set -eu
+
+# This script lives in kt-kernel/scripts/, so REPO_ROOT = kt-kernel
+REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+HOOKS_SRC="$REPO_ROOT/.githooks"
+
+# Detect the top-level Git worktree (the monorepo root: ktransformers)
+GIT_TOP="$(git rev-parse --show-toplevel 2>/dev/null || true)"
+if [ -z "$GIT_TOP" ] || [ ! -d "$GIT_TOP/.git" ]; then
+  echo "[install-git-hooks] Not inside a git worktree; skipping hooks installation." >&2
+  exit 0
+fi
+
+GIT_DIR="$GIT_TOP/.git"
+HOOKS_DEST="$GIT_DIR/hooks"
+
+if [ ! -d "$HOOKS_SRC" ]; then
+  echo "[install-git-hooks] No .githooks directory found at $HOOKS_SRC" >&2
+  exit 1
+fi
+
+echo "[install-git-hooks] Installing git hooks from $HOOKS_SRC to $HOOKS_DEST (repo: $GIT_TOP)"
+
+# Ensure all source hook files are executable so that even if copied (not symlinked) they run.
+for src_hook in "$HOOKS_SRC"/*; do
+  [ -f "$src_hook" ] || continue
+  if [ ! -x "$src_hook" ]; then
+    chmod +x "$src_hook" || true
+  fi
+done
+
+for hook in "$HOOKS_SRC"/*; do
+  [ -e "$hook" ] || continue
+  name=$(basename "$hook")
+  dest="$HOOKS_DEST/$name"
+
+  # Remove existing hook if it's our symlink or a file
+  if [ -L "$dest" ] || [ -f "$dest" ]; then
+    rm -f "$dest"
+  fi
+
+  # Try symlink first
+  if ln -s "$hook" "$dest" 2>/dev/null; then
+    echo "linked $name"
+  else
+    # Fall back to copying and preserve executable bit
+    cp "$hook" "$dest"
+    chmod +x "$dest"
+    echo "copied $name"
+  fi
+done
+
+echo "[install-git-hooks] Done. Hooks installed."