Add Windows 7 deploy bundle pipeline

Self-contained zip (dist/avtoambor-deploy.zip) for end users on Windows 7:
double-click install.bat to install Node 16, then start.bat to launch the
server. start.bat self-relaunches minimized so the console window stays out
of the way. Node is pinned to 16.x and several deps downgraded for Win7
compatibility; the unsupported View Transitions hook is dropped from the
root layout. make bundle wraps scripts/make-bundle.sh.

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

deploy/backup.bat

@@ -0,0 +1,32 @@
+@echo off
+REM One-shot backup of data\avtoambor.db into backups\ with a timestamp.
+REM The server already takes automatic backups every 5 minutes when something
+REM has changed; this script is for an explicit manual snapshot.
+chcp 65001 >nul
+
+setlocal
+cd /d "%~dp0"
+
+if not exist "data\avtoambor.db" (
+  echo Файл данных не найден: data\avtoambor.db
+  pause
+  exit /b 1
+)
+
+if not exist "backups" mkdir backups
+
+REM Build YYYY-MM-DD_HH-MM-SS using WMIC (locale-independent).
+for /f "skip=1 delims=" %%a in ('wmic os get LocalDateTime') do if not defined LDT set "LDT=%%a"
+set "STAMP=%LDT:~0,4%-%LDT:~4,2%-%LDT:~6,2%_%LDT:~8,2%-%LDT:~10,2%-%LDT:~12,2%"
+set "DEST=backups\zamena-masla-gp-%STAMP%.db"
+
+copy /Y "data\avtoambor.db" "%DEST%" >nul
+if errorlevel 1 (
+  echo Не удалось создать резервную копию.
+  pause
+  exit /b 1
+)
+
+echo Резервная копия сохранена: %DEST%
+pause
+endlocal