Add ECW/HTTP planner scripts, browser crash recovery, and Planner error-overlay handling

- Add ecw_download.py and onedrive_planner_http.py for ECW and HTTP-based Planner access
- Add build_exe.bat for packaging
- Restart Chrome automatically on crash mid-run in planner_download.py
- Detect and recover from Planner "something went wrong" error overlays
- Improve board-load waiting, sort-descending menu matching, and screenshot timestamp rendering in chrome.py/onedrive_planner.py

build_exe.bat

@@ -0,0 +1,57 @@
+@echo off
+setlocal EnableDelayedExpansion
+cd /d "%~dp0"
+
+echo ============================================================
+echo   MISF Planner Download -- Build EXE
+echo ============================================================
+echo.
+
+REM ── 1. Install / upgrade PyInstaller inside the venv ─────────────────────
+echo [1/4] Ensuring PyInstaller is installed...
+.venv\Scripts\pip install --quiet --upgrade pyinstaller
+if %ERRORLEVEL% NEQ 0 (
+    echo ERROR: pip install pyinstaller failed. Is the venv set up?
+    pause & exit /b 1
+)
+
+REM ── 2. Clean previous build artefacts ────────────────────────────────────
+echo [2/4] Cleaning previous build...
+if exist build         rmdir /s /q build
+if exist dist\MISF_Planner_Download  rmdir /s /q dist\MISF_Planner_Download
+
+REM ── 3. Build ──────────────────────────────────────────────────────────────
+echo [3/4] Building (this takes 2-5 minutes)...
+echo.
+.venv\Scripts\pyinstaller onedrive_planner_http.spec --clean --noconfirm
+if %ERRORLEVEL% NEQ 0 (
+    echo.
+    echo ERROR: PyInstaller build failed. Check output above.
+    pause & exit /b 1
+)
+
+REM ── 4. Copy Input folder so the exe knows where to read config ────────────
+echo.
+echo [4/4] Copying Input\ folder into dist...
+if exist Input (
+    xcopy /E /I /Y "Input" "dist\MISF_Planner_Download\Input" >nul
+    echo     Input\ copied.
+) else (
+    echo     WARNING: No Input\ folder found -- copy it manually before shipping.
+)
+
+echo.
+echo ============================================================
+echo   BUILD COMPLETE
+echo.
+echo   Folder : dist\MISF_Planner_Download\
+echo   Exe    : dist\MISF_Planner_Download\MISF_Planner_Download.exe
+echo.
+echo   TO DEPLOY ON ANOTHER MACHINE:
+echo     1. Copy the entire dist\MISF_Planner_Download\ folder.
+echo     2. Make sure Input\input.xlsx is inside that folder.
+echo     3. Double-click MISF_Planner_Download.exe.
+echo        (First run downloads the browser automatically.)
+echo ============================================================
+echo.
+pause