feat: add TypeScript declarations and source maps for better IDE support

vite.config.ts

@@ -1,6 +1,7 @@
 import { defineConfig } from "vite";
 import vue from "@vitejs/plugin-vue";
 import legacy from "@vitejs/plugin-legacy";
+import dts from "vite-plugin-dts";
 import { resolve } from "path";
 
 export default defineConfig(({ command, mode }) => {
@@ -18,10 +19,21 @@ export default defineConfig(({ command, mode }) => {
         legacy({
           targets: ["defaults", "not IE 11"],
         }),
+      // Generate TypeScript declaration files for library builds
+      isLibBuild &&
+        dts({
+          include: ["**/*.ts", "**/*.vue"],
+          exclude: ["node_modules", "dist", "dist-examples", "examples"],
+          outDir: "dist",
+          staticImport: true,
+          insertTypesEntry: true,
+          rollupTypes: false,
+        }),
     ].filter(Boolean),
     build: isLibBuild
       ? {
           // Library build configuration
+          sourcemap: true,
           lib: {
             entry: {
               index: resolve(__dirname, "index.ts"),