fix: generate settings.min.js for production sites without SCRIPT_DEBUG

WordPress loads settings.min.js instead of settings.js when SCRIPT_DEBUG
is false (the default on production sites). The old settings.min.js from
the original plugin was still present and caused a crash because it
referenced licence.is_set which could be undefined.

- Add @rollup/plugin-terser to build dependencies
- Update rollup.config.mjs to output both settings.js (dev) and
  settings.min.js (prod, minified) from the same source
- Rebuild both outputs with all licence-removal changes included

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

rollup.config.mjs

@@ -2,6 +2,7 @@ import svelte from 'rollup-plugin-svelte';
 import commonjs from '@rollup/plugin-commonjs';
 import resolve from '@rollup/plugin-node-resolve';
 import css from 'rollup-plugin-css-only';
+import terser from '@rollup/plugin-terser';
 
 // const production = !process.env.ROLLUP_WATCH;
 const production = false; // Keep runtime checks for the moment.
@@ -10,37 +11,59 @@ const production = false; // Keep runtime checks for the moment.
 // The base plugin's compiled output (assets/js/settings.js) is committed directly.
 // This config only builds the Pro-specific entry point.
 
-export default [{
-	input: 'ui/pro/Settings.svelte',
-	output: {
-		sourcemap: true,
-		format: 'umd',
-		name: 'AS3CFPro_Settings',
-		file: 'assets/js/pro/settings.js'
-	},
-	plugins: [
-		svelte( {
-			compilerOptions: {
-				// enable run-time checks when not in production
-				dev: !production
-			}
-		} ),
-		// we'll extract any component CSS out into
-		// a separate file - better for performance
-		css( { output: 'settings.css' } ),
+const sharedPlugins = [
+	svelte( {
+		compilerOptions: {
+			// enable run-time checks when not in production
+			dev: !production
+		}
+	} ),
+	// we'll extract any component CSS out into
+	// a separate file - better for performance
+	css( { output: 'settings.css' } ),
 
-		// If you have external dependencies installed from
-		// npm, you'll most likely need these plugins. In
-		// some cases you'll need additional configuration -
-		// consult the documentation for details:
-		// https://github.com/rollup/plugins/tree/master/packages/commonjs
-		resolve( {
-			browser: true,
-			dedupe: ['svelte']
-		} ),
-		commonjs()
-	],
-	watch: {
-		clearScreen: false
+	// If you have external dependencies installed from
+	// npm, you'll most likely need these plugins. In
+	// some cases you'll need additional configuration -
+	// consult the documentation for details:
+	// https://github.com/rollup/plugins/tree/master/packages/commonjs
+	resolve( {
+		browser: true,
+		dedupe: ['svelte']
+	} ),
+	commonjs()
+];
+
+export default [
+	// Unminified build (loaded when SCRIPT_DEBUG = true)
+	{
+		input: 'ui/pro/Settings.svelte',
+		output: {
+			sourcemap: true,
+			format: 'umd',
+			name: 'AS3CFPro_Settings',
+			file: 'assets/js/pro/settings.js'
+		},
+		plugins: sharedPlugins,
+		watch: {
+			clearScreen: false
+		}
+	},
+	// Minified build (loaded when SCRIPT_DEBUG = false, i.e. production)
+	{
+		input: 'ui/pro/Settings.svelte',
+		output: {
+			sourcemap: true,
+			format: 'umd',
+			name: 'AS3CFPro_Settings',
+			file: 'assets/js/pro/settings.min.js'
+		},
+		plugins: [
+			...sharedPlugins,
+			terser()
+		],
+		watch: {
+			clearScreen: false
+		}
 	}
-}];
+];