feat: add Candy Cannon Survival game mode with collectible tiles

Version bump to 2.3.6. New game mode features 20×20 arena with central cannon obstacle, three escalating phases (Open Arena, Route Pressure, Survival), and collectible tiles (Hearts, Diamonds, Stars, Coins) with pattern-matching missions. Players dodge candy volleys while completing collection goals.

Updated export paths and version strings across all platforms (Windows, Android, Web, Linux).

run_tests.cmd

@@ -0,0 +1,64 @@
+@echo off
+REM ============================================================================
+REM  Tekton Dash — GUT Test Runner with Report Generation
+REM  Usage: run_tests.cmd [test_file]
+REM    No args  = run ALL tests in tests/
+REM    With arg = run specific test, e.g. run_tests.cmd test_gauntlet_registration
+REM ============================================================================
+
+setlocal EnableDelayedExpansion
+
+REM --- Config ---
+set GODOT_PATH=godot
+set PROJECT_PATH=%~dp0
+set REPORT_DIR=%PROJECT_PATH%test_reports
+set TIMESTAMP=%DATE:~10,4%-%DATE:~4,2%-%DATE:~7,2%_%TIME:~0,2%-%TIME:~3,2%-%TIME:~6,2%
+set TIMESTAMP=%TIMESTAMP: =0%
+set REPORT_FILE=%REPORT_DIR%\test_report_%TIMESTAMP%.txt
+
+REM --- Create report directory ---
+if not exist "%REPORT_DIR%" mkdir "%REPORT_DIR%"
+
+REM --- Determine test target ---
+set TEST_ARG=
+if not "%~1"=="" (
+    set TEST_ARG=-gtest=res://tests/%~1.gd
+    echo Running specific test: %~1
+) else (
+    set TEST_ARG=-gdir=res://tests/
+    echo Running ALL tests in tests/
+)
+
+REM --- Header ---
+echo ============================================================================ > "%REPORT_FILE%"
+echo  TEKTON DASH — Test Report >> "%REPORT_FILE%"
+echo  Generated: %DATE% %TIME% >> "%REPORT_FILE%"
+echo  Project: Tekton Dash Armageddon >> "%REPORT_FILE%"
+echo ============================================================================ >> "%REPORT_FILE%"
+echo. >> "%REPORT_FILE%"
+
+REM --- Run GUT tests via Godot headless ---
+echo Running tests...
+%GODOT_PATH% --headless --path "%PROJECT_PATH%" -s res://addons/gut/gut_cmdln.gd %TEST_ARG% -gexit 2>&1 | tee -a "%REPORT_FILE%" 2>nul
+
+REM Fallback if tee is not available (most Windows systems)
+if %ERRORLEVEL% neq 0 (
+    %GODOT_PATH% --headless --path "%PROJECT_PATH%" -s res://addons/gut/gut_cmdln.gd %TEST_ARG% -gexit >> "%REPORT_FILE%" 2>&1
+)
+
+REM --- Footer ---
+echo. >> "%REPORT_FILE%"
+echo ============================================================================ >> "%REPORT_FILE%"
+echo  End of Report >> "%REPORT_FILE%"
+echo ============================================================================ >> "%REPORT_FILE%"
+
+echo.
+echo ============================================
+echo  Report saved to: %REPORT_FILE%
+echo ============================================
+echo.
+
+REM --- Open report ---
+type "%REPORT_FILE%"
+
+endlocal