Add dev build script and improve Vite config

Introduces a 'build:shell:dev' script for development builds and updates napcat-shell's Vite config to conditionally enable source maps in development mode. This enhances build flexibility for development and production environments.

packages/napcat-shell/package.json

@@ -6,6 +6,7 @@
     "main": "index.ts",
     "scripts": {
         "build": "vite build",
+        "build:dev": "vite build --mode development",
         "typecheck": "tsc --noEmit --skipLibCheck -p tsconfig.json"
     },
     "exports": {

packages/napcat-shell/vite.config.ts

@@ -34,7 +34,7 @@ const ShellBaseConfigPlugin: PluginOption[] = [
   nodeResolve(),
   napcatVersion(),
 ];
-const ShellBaseConfig = () =>
+const ShellBaseConfig = (source_map: boolean = false) =>
   defineConfig({
     resolve: {
       conditions: ['node', 'default'],
@@ -48,7 +48,7 @@ const ShellBaseConfig = () =>
       },
     },
     build: {
-      sourcemap: true,
+      sourcemap: source_map,
       target: 'esnext',
       minify: false,
       lib: {
@@ -65,7 +65,13 @@ const ShellBaseConfig = () =>
       },
     },
   });
-export default defineConfig((): UserConfig => {
+export default defineConfig(({ mode }): UserConfig => {
+  if (mode === 'development') {
+    return {
+      ...ShellBaseConfig(true),
+      plugins: [...ShellBaseConfigPlugin],
+    };
+  }
   return {
     ...ShellBaseConfig(),
     plugins: [...ShellBaseConfigPlugin],