Add self-downloading installer and README

- install.bat downloads exe from Gitea release or uses local copy
- Adds to user PATH automatically
- README with full usage guide, file structure, conflict resolution

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

install.bat

@@ -1,55 +1,95 @@
 @echo off
-setlocal
+setlocal EnableDelayedExpansion
 
 set "INSTALL_DIR=%LOCALAPPDATA%\kisync"
 set "EXE_NAME=kisync.exe"
+set "DOWNLOAD_URL=https://gitea.esh-service.ru/public/api_builder_cli_client/releases/download/v1.0.0/kisync.exe"
 
 echo.
-echo  KIS API Builder Sync - Installer
-echo  =================================
+echo  ==========================================
+echo   kisync - KIS API Builder Sync - Installer
+echo  ==========================================
 echo.
 
 :: Create install directory
 if not exist "%INSTALL_DIR%" (
     mkdir "%INSTALL_DIR%"
-    echo  Created: %INSTALL_DIR%
+    echo  [+] Created directory: %INSTALL_DIR%
+) else (
+    echo  [=] Directory exists:  %INSTALL_DIR%
 )
 
-:: Copy exe
-copy /Y "%~dp0release\%EXE_NAME%" "%INSTALL_DIR%\%EXE_NAME%" >nul 2>&1
-if errorlevel 1 (
-    echo  ERROR: Could not copy %EXE_NAME%. Make sure release\kisync.exe exists.
-    echo  Run "npm run package" first to build the exe.
+:: Check if exe is next to this script (offline install)
+if exist "%~dp0release\%EXE_NAME%" (
+    echo  [~] Found local exe, copying...
+    copy /Y "%~dp0release\%EXE_NAME%" "%INSTALL_DIR%\%EXE_NAME%" >nul 2>&1
+    goto :check_copy
+)
+if exist "%~dp0%EXE_NAME%" (
+    echo  [~] Found local exe, copying...
+    copy /Y "%~dp0%EXE_NAME%" "%INSTALL_DIR%\%EXE_NAME%" >nul 2>&1
+    goto :check_copy
+)
+
+:: Download from Gitea
+echo  [~] Downloading kisync.exe ...
+echo      %DOWNLOAD_URL%
+echo.
+powershell -Command "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; (New-Object Net.WebClient).DownloadFile('%DOWNLOAD_URL%', '%INSTALL_DIR%\%EXE_NAME%')" 2>nul
+
+:check_copy
+if not exist "%INSTALL_DIR%\%EXE_NAME%" (
+    echo.
+    echo  [!] ERROR: Failed to get kisync.exe
+    echo      Try downloading manually from:
+    echo      %DOWNLOAD_URL%
+    echo      and place it in: %INSTALL_DIR%\
+    echo.
     pause
     exit /b 1
 )
-echo  Installed: %INSTALL_DIR%\%EXE_NAME%
 
-:: Check if already in PATH
-echo %PATH% | findstr /I /C:"%INSTALL_DIR%" >nul 2>&1
-if %errorlevel%==0 (
-    echo  PATH: already configured
-    goto :done
-)
+:: Show version
+echo  [+] Installed: %INSTALL_DIR%\%EXE_NAME%
+"%INSTALL_DIR%\%EXE_NAME%" --version 2>nul && echo.
 
-:: Add to user PATH
-echo  Adding to user PATH...
+:: Check if already in user PATH
+set "NEED_PATH=1"
 for /f "tokens=2*" %%a in ('reg query "HKCU\Environment" /v Path 2^>nul') do set "USER_PATH=%%b"
 
 if defined USER_PATH (
-    reg add "HKCU\Environment" /v Path /t REG_EXPAND_SZ /d "%USER_PATH%;%INSTALL_DIR%" /f >nul 2>&1
-) else (
-    reg add "HKCU\Environment" /v Path /t REG_EXPAND_SZ /d "%INSTALL_DIR%" /f >nul 2>&1
+    echo !USER_PATH! | findstr /I /C:"%INSTALL_DIR%" >nul 2>&1
+    if !errorlevel!==0 (
+        set "NEED_PATH=0"
+        echo  [=] PATH: already configured
+    )
 )
 
-:: Broadcast environment change so new terminals pick it up
-rundll32.exe user32.dll,UpdatePerIDesktopLayout >nul 2>&1
+if !NEED_PATH!==1 (
+    echo  [~] Adding to user PATH...
+    if defined USER_PATH (
+        reg add "HKCU\Environment" /v Path /t REG_EXPAND_SZ /d "%USER_PATH%;%INSTALL_DIR%" /f >nul 2>&1
+    ) else (
+        reg add "HKCU\Environment" /v Path /t REG_EXPAND_SZ /d "%INSTALL_DIR%" /f >nul 2>&1
+    )
 
-echo  PATH: added %INSTALL_DIR%
+    :: Notify system about environment change
+    powershell -Command "[Environment]::SetEnvironmentVariable('_kisync_refresh','1','User'); [Environment]::SetEnvironmentVariable('_kisync_refresh', $null, 'User')" 2>nul
+
+    echo  [+] PATH: added %INSTALL_DIR%
+)
 
-:done
 echo.
-echo  Done! Open a NEW terminal and run:
-echo    kisync --help
+echo  ==========================================
+echo   Installation complete!
+echo  ==========================================
+echo.
+echo   Open a NEW terminal and run:
+echo     kisync --help
+echo.
+echo   Quick start:
+echo     cd my-project
+echo     kisync init
+echo     kisync pull
 echo.
 pause