Added Grunt

Gruntfile.js

@@ -0,0 +1,79 @@
+module.exports = function (grunt) {
+
+    grunt.initConfig({
+        pkg: grunt.file.readJSON('package.json'),
+        // Concat JS files
+        concat: {
+            default: {
+                src:[
+                    'resources/js/humhub.example-basic.js',
+                    //'resources/js/humhub.example-basic.another.js',
+                ],
+                dest: 'resources/js/humhub.example-basic.bundle.js'
+            },
+        },
+        // Minify JS files
+        uglify: {
+            default: {
+                files: {
+                    'resources/js/humhub.example-basic.bundle.min.js': ['resources/js/humhub.example-basic.bundle.js'],
+                }
+            }
+        },
+        // Compile SCSS to CSS
+        sass: {
+            options: {
+                implementation: require('sass'),
+                sourceMap: true,
+                sourceMapEmbed: false,
+                sourceMapContents: true,
+                outputStyle: 'expanded'
+            },
+            dev: {
+                files: {
+                    'resources/css/humhub.example-basic.css': 'resources/css/humhub.example-basic.scss',
+                }
+            }
+        },
+        // Minify CSS files
+        cssmin: {
+            options: {
+                sourceMap: true
+            },
+            target: {
+                files: {
+                    'resources/css/humhub.example-basic.min.css': ['resources/css/humhub.example-basic.css'],
+                }
+            }
+        },
+        // Watch for changes in JS and SCSS files
+        watch: {
+            scripts: {
+                files: ['resources/js/*.js', 'resources/css/*.scss'],
+                tasks: ['build'],
+                options: {
+                    spawn: false,
+                },
+            },
+        },
+    });
+
+    grunt.loadNpmTasks('grunt-contrib-concat');
+    grunt.loadNpmTasks('grunt-contrib-uglify');
+    grunt.loadNpmTasks('grunt-sass');
+    grunt.loadNpmTasks('grunt-contrib-cssmin');
+    grunt.loadNpmTasks('grunt-contrib-watch');
+
+    // Fix source map paths (remove 'resources/css/' prefix)
+    grunt.registerTask('fix-sourcemaps', function() {
+        const maps = grunt.file.expand('resources/css/*.map');
+        maps.forEach(file => {
+            let content = grunt.file.read(file);
+            // Replace only inside "sources":[...]
+            content = content.replace(/"resources\/css\//g, '"');
+            grunt.file.write(file, content);
+        });
+    });
+
+    grunt.registerTask('build', ['concat', 'uglify', 'sass', 'cssmin', 'fix-sourcemaps']);
+};