Migrate build system to CMake for cross-platform support

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+project(BudgetPro VERSION 1.0 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+# Qt 6 Configuration
+find_package(Qt6 REQUIRED COMPONENTS Widgets Sql)
+
+# Define directories for easier management
+set(SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+set(SRC_DIR ${SOURCE_DIR}/src)
+set(GUI_DIR ${SOURCE_DIR}/src/gui)
+set(WIDGET_DIR ${SOURCE_DIR}/src/gui/widgets)
+set(FORMS_DIR ${SOURCE_DIR}/src/gui/forms)
+set(MODELS_DIR ${SOURCE_DIR}/src/models)
+set(DAO_DIR ${SOURCE_DIR}/src/dao)
+set(UTILS_DIR ${SOURCE_DIR}/src/utils)
+set(APP_DIR ${SOURCE_DIR}/src/app)
+set(ROOT_WIDGET_DIR ${SOURCE_DIR}/widget)
+
+# Include Paths
+include_directories(
+    ${GUI_DIR}
+    ${WIDGET_DIR}
+    ${FORMS_DIR}
+    ${MODELS_DIR}
+    ${DAO_DIR}
+    ${UTILS_DIR}
+    ${APP_DIR}
+    ${ROOT_WIDGET_DIR}
+    ${SOURCE_DIR}/data
+    ${SOURCE_DIR}/gui/SARibbon
+    ${SOURCE_DIR}/gui/qtRibbonGUI
+)
+
+# SARibbon Library Integration
+# Assuming SARibbon is integrated as a sub-project or pre-compiled
+add_subdirectory(gui/SARibbon)
+
+# Collect Sources
+file(GLOB_RECURSIVE SOURCES 
+    "src/*.cpp" 
+    "src/*.h" 
+    "widget/*.cpp" 
+    "widget/*.h" 
+    "utils/*.cpp" 
+    "utils/*.h"
+)
+
+# Collect Forms
+file(GLOB_RECURSIVE FORMS 
+    "src/gui/*.ui" 
+    "src/gui/forms/*.ui" 
+    "widget/*.ui"
+)
+
+# Collect Resources
+file(GLOB_RECURSIVE RESOURCES 
+    "resources/*.qss" 
+    "resources/*.svg" 
+    "resources/*.png"
+    "*.qrc"
+)
+
+# Create Executable
+add_executable(BudgetPro 
+    ${SOURCES} 
+    ${FORMS} 
+    ${RESOURCES}
+)
+
+# Link Libraries
+target_link_libraries(BudgetPro PRIVATE Qt6::Widgets Qt6::Sql SARibbonBar)
+
+# OS Specific configurations
+if(WIN32)
+    set_target_properties(BudgetPro PROPERTIES WIN32_EXECUTABLE TRUE)
+    target_compile_definitions(BudgetPro PRIVATE NOMINMAX)
+elseif(APPLE)
+    set_target_properties(BudgetPro PROPERTIES MACOSX_BUNDLE TRUE)
+endif()

build.bat

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+@echo off
+:: Build script for Windows
+set BUILD_DIR=build
+if not exist %BUILD_DIR% mkdir %BUILD_DIR%
+cd %BUILD_DIR%
+cmake ..
+cmake --build . --config Release
+cd ..
+echo Build complete. Binary located in %BUILD_DIR%\Release\BudgetPro.exe

build.sh

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+#!/bin/bash
+# Build script for Linux and macOS
+BUILD_DIR="build"
+
+if [ ! -d "$BUILD_DIR" ]; then
+  mkdir $BUILD_DIR
+fi
+
+cd $BUILD_DIR
+cmake ..
+make -j$(nproc)
+cd ..
+echo "Build complete. Binary located in $BUILD_DIR/BudgetPro"