feat(qmd): warm the index and daemon from a SessionStart hook

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

shared/hooks/scripts/qmd-warm.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+# SessionStart: warm the QMD index and daemon in the background; never blocks or fails the session.
+script="$HOME/.my-ai-configuration/qmd/qmd-warm.mjs"
+if [ -f "$script" ] && command -v node >/dev/null 2>&1 && git rev-parse --show-toplevel >/dev/null 2>&1; then
+  nohup node "$script" >/dev/null 2>&1 &
+fi
+exit 0