Run dev on host Node 16 and add deploy patch script

Switch make install/run/build/db-* off docker compose onto the host's
Node (via nvm + .nvmrc). better-sqlite3 7.6.2 doesn't build against
Node 20, and the Dockerfile was still pinned to node:20 while the
rest of the project was downgraded to Node 16 in the Win7 bundle
commit; host execution avoids that mismatch.

Also adds scripts/make-patch.sh (make patch) to produce a small
build-only update zip for an already-installed Win7 target, ignores
dist/, and points start.bat at the installed Chrome PWA shortcut
instead of opening a normal browser tab.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

scripts/make-patch.sh

@@ -0,0 +1,106 @@
+#!/usr/bin/env bash
+# Build dist/avtoambor-patch.zip — a small build/-only update for an
+# already-installed Windows deployment.
+#
+# Use this when only application code has changed since the last full bundle.
+# The patch is just the SvelteKit build output; node_modules, .bat launchers,
+# and the native better-sqlite3 binary on the target stay untouched.
+#
+# The script compares package-lock.json and src/lib/server/*.sql against the
+# staging snapshot left by scripts/make-bundle.sh (dist/avtoambor/). If those
+# changed, a full re-bundle is required instead — the patch alone won't work.
+
+set -euo pipefail
+
+cd "$(dirname "$0")/.."
+ROOT="$(pwd)"
+DIST="$ROOT/dist"
+BASELINE="$DIST/avtoambor"
+PATCH_DIR="$DIST/patch"
+ZIP="$DIST/avtoambor-patch.zip"
+
+for cmd in npm zip rsync diff; do
+  command -v "$cmd" >/dev/null || { echo "make-patch.sh: missing required tool: $cmd"; exit 1; }
+done
+
+if [ ! -d "$BASELINE" ]; then
+  echo "make-patch.sh: no baseline at $BASELINE."
+  echo "  Run scripts/make-bundle.sh first to establish a baseline."
+  exit 1
+fi
+
+# --- safety checks: things a build/-only patch cannot deliver ---
+WARN=0
+warn() { echo "  ! $*"; WARN=1; }
+
+echo "==> Checking patch safety against baseline ($BASELINE)"
+if ! diff -q "$ROOT/package-lock.json" "$BASELINE/package-lock.json" >/dev/null 2>&1; then
+  warn "package-lock.json changed — node_modules on target is stale. Full bundle required."
+fi
+for f in schema.sql seed.sql; do
+  if ! diff -q "$ROOT/src/lib/server/$f" "$BASELINE/src/lib/server/$f" >/dev/null 2>&1; then
+    warn "src/lib/server/$f changed — target DB may need a migration."
+  fi
+done
+
+if [ "$WARN" = 1 ]; then
+  echo
+  echo "Patch may be unsafe."
+  echo "Either:"
+  echo "  - run scripts/make-bundle.sh and ship the full bundle, or"
+  echo "  - re-run this script with FORCE=1 if you know the change is harmless."
+  if [ "${FORCE:-0}" != "1" ]; then
+    exit 1
+  fi
+  echo "FORCE=1 set — continuing anyway."
+fi
+
+echo "==> Building production output (vite build)"
+npm run build
+
+echo "==> Staging patch contents"
+rm -rf "$PATCH_DIR"
+mkdir -p "$PATCH_DIR"
+rsync -a --delete build/ "$PATCH_DIR/build/"
+
+STAMP="$(date +%Y-%m-%d)"
+cat > "$PATCH_DIR/UPDATE.txt" <<EOF
+Замена Масла ГП — обновление программы ($STAMP)
+================================================
+
+Этот архив содержит только новую версию программы (папка build).
+Ваши данные (data\\, backups\\) и установленный Node.js не затрагиваются.
+
+Как установить обновление:
+
+  1. Закройте чёрное окно "start.bat", если программа запущена.
+
+  2. Распакуйте этот архив в папку C:\\avtoambor\\
+     (туда же, где лежат install.bat и start.bat).
+     Windows спросит, заменить ли существующие файлы — ответьте "Да"
+     (или "Заменить файлы в папке назначения").
+
+  3. Снова запустите start.bat двойным щелчком.
+
+Если после обновления программа не запускается — напишите Давиду.
+EOF
+
+echo "==> Creating zip: $ZIP"
+rm -f "$ZIP"
+( cd "$PATCH_DIR" && zip -rq "$ZIP" build UPDATE.txt )
+
+ZIP_SIZE="$(du -h "$ZIP" | cut -f1)"
+echo
+echo "═══════════════════════════════════════════════════════════════"
+echo " Patch ready: $ZIP ($ZIP_SIZE)"
+echo "═══════════════════════════════════════════════════════════════"
+echo
+echo " Next steps (you):"
+echo "   1. Upload $ZIP to your server."
+echo "   2. Send him the download link."
+echo
+echo " What he does (also written in UPDATE.txt inside the zip):"
+echo "   1. Close the start.bat window."
+echo "   2. Extract the zip into C:\\avtoambor\\ — choose Replace when asked."
+echo "   3. Double-click start.bat."
+echo