fix(ci): stop dd from corrupting the x86_64 linuxdeploy launcher

Same root cause and fix as Guará: tauri-bundler's prepare_tools runs
'dd ... seek=8 conv=notrunc' on the cached linuxdeploy-x86_64 binary on
the aarch64 Gitea runner. A bash wrapper script there loses its shebang
to the dd and fails with ENOENT; a native ELF launcher survives because
bytes 8-10 of the ELF header are unused EI_PAD padding. Replace the
wrapper with a small ELF launcher compiled with cc, and cache
AppRun-x86_64 explicitly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VAyr8d7HuAdUGB6aA5xmDD

scripts/install-hooks.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# Liga o hook de pre-push do repositório (roda scripts/verificar.sh antes de cada push).
+set -euo pipefail
+cd "$(dirname "$0")/.."
+git config core.hooksPath .githooks
+echo "hook ligado: git push passa a rodar scripts/verificar.sh (desligue com: git config --unset core.hooksPath)"