Refactor UI plugin for schema-based multi-framework support

Major refactor of the UI plugin to support schema-driven configuration and multi-framework (React, Preact, Vue, Svelte) builds. Removes legacy menu manager and component code, introduces unified UI state management, new schema types, and updates package exports and build scripts. Adds Vue and Svelte entry points and configuration, and updates peer dependencies.

Author: bobsingor

packages/plugin-ui/CHANGELOG.md

@@ -12,22 +12,35 @@
       "import": "./dist/index.js",
       "require": "./dist/index.cjs"
     },
+    "./preact": {
+      "types": "./dist/preact/index.d.ts",
+      "import": "./dist/preact/index.js",
+      "require": "./dist/preact/index.cjs"
+    },
     "./react": {
       "types": "./dist/react/index.d.ts",
       "import": "./dist/react/index.js",
       "require": "./dist/react/index.cjs"
     },
-    "./preact": {
-      "types": "./dist/preact/index.d.ts",
-      "import": "./dist/preact/index.js",
-      "require": "./dist/preact/index.cjs"
+    "./vue": {
+      "types": "./dist/vue/index.d.ts",
+      "import": "./dist/vue/index.js",
+      "require": "./dist/vue/index.cjs"
+    },
+    "./svelte": {
+      "types": "./dist/svelte/index.d.ts",
+      "svelte": "./dist/svelte/index.js",
+      "import": "./dist/svelte/index.js",
+      "require": "./dist/svelte/index.cjs"
     }
   },
   "scripts": {
     "build:base": "vite build --mode base",
     "build:react": "vite build --mode react",
     "build:preact": "vite build --mode preact",
-    "build": "pnpm run clean && concurrently -c auto -n base,react,preact \"vite build --mode base\" \"vite build --mode react\" \"vite build --mode preact\"",
+    "build:vue": "vite build --mode vue",
+    "build:svelte": "vite build --mode svelte",
+    "build": "pnpm run clean && concurrently -c auto -n base,react,preact,vue,svelte \"vite build --mode base\" \"vite build --mode react\" \"vite build --mode preact\" \"vite build --mode vue\" \"vite build --mode svelte\"",
     "clean": "rimraf dist",
     "lint": "eslint src --color",
     "lint:fix": "eslint src --color --fix"
@@ -36,16 +49,24 @@
     "@embedpdf/models": "workspace:*"
   },
   "devDependencies": {
-    "@embedpdf/build": "workspace:*",
     "@embedpdf/core": "workspace:*",
+    "@embedpdf/build": "workspace:*",
+    "@embedpdf/plugin-render": "workspace:*",
+    "@embedpdf/plugin-scroll": "workspace:*",
+    "@embedpdf/plugin-viewport": "workspace:*",
     "@types/react": "^18.2.0",
     "typescript": "^5.0.0"
   },
   "peerDependencies": {
     "@embedpdf/core": "workspace:*",
+    "@embedpdf/plugin-render": "workspace:*",
+    "@embedpdf/plugin-scroll": "workspace:*",
+    "@embedpdf/plugin-viewport": "workspace:*",
     "react": ">=16.8.0",
     "react-dom": ">=16.8.0",
-    "preact": "^10.26.4"
+    "preact": "^10.26.4",
+    "vue": ">=3.2.0",
+    "svelte": ">=5 <6"
   },
   "files": [
     "dist",