Modify entrypoint to improve script execution

Updated init script execution to use exec and added bashio shebang.

maintainerr/rootfs/ha_entrypoint.sh

@@ -7,19 +7,13 @@ set -e
 # Runs cont-init.d scripts then drops privileges and starts the app.
 ###############################################################################
 
-# ─── Source standalone bashio if available ───────────────────────────────────
-if [ -f /usr/local/lib/bashio-standalone.sh ]; then
-    # shellcheck disable=SC1091
-    source /usr/local/lib/bashio-standalone.sh
-fi
-
 # ─── Run cont-init.d scripts ─────────────────────────────────────────────────
 if [ -d /etc/cont-init.d ]; then
     for script in /etc/cont-init.d/*.sh; do
         [ -f "$script" ] || continue
+        sed -i "1a\#!/usr/bin/env bashio" "$script"
         echo "[Maintainerr] Running init script: $script"
-        # Use bash directly (no S6 with-contenv available)
-        bash "$script"
+        exec "$script"
     done
 fi