chore: auto manifest on version bump; local manual script only

contrib/manifest/generate.py + pre-commit hook; install-git-hooks.sh creates
.local/build-release-manifest.sh (gitignored). Remove scripts/ from remote.

contrib/install-git-hooks.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# Установка git hooks и локального скрипта ручной генерации manifest (не в git).
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+HOOK_SRC="$ROOT/contrib/hooks/pre-commit"
+HOOK_DST="$ROOT/.git/hooks/pre-commit"
+LOCAL_DIR="$ROOT/.local"
+LOCAL_SCRIPT="$LOCAL_DIR/build-release-manifest.sh"
+
+if [ ! -d "$ROOT/.git" ]; then
+	echo "ERROR: не git-репозиторий: $ROOT" >&2
+	exit 1
+fi
+
+mkdir -p "$LOCAL_DIR"
+cat >"$LOCAL_SCRIPT" <<'EOF'
+#!/bin/bash
+# Локальный wrapper (не коммитится). Ручная генерация manifest.
+set -euo pipefail
+ROOT="$(git rev-parse --show-toplevel)"
+exec python3 "$ROOT/contrib/manifest/generate.py" "$@"
+EOF
+chmod +x "$LOCAL_SCRIPT"
+
+cp "$HOOK_SRC" "$HOOK_DST"
+chmod +x "$HOOK_DST"
+
+echo "OK: pre-commit hook → $HOOK_DST"
+echo "OK: ручной скрипт → $LOCAL_SCRIPT (в .gitignore, не уйдёт в Gitea/GitHub)"
+echo "После clone выполните: ./contrib/install-git-hooks.sh"