feat: update client package configuration and dependencies

- Added new dependencies for Rollup plugins and updated existing ones in package.json and package-lock.json.
- Introduced a new Rollup configuration file for building the client package.
- Refactored build scripts to include a dedicated build command for the client.
- Updated TypeScript configuration for improved module resolution and type declaration output.
- Integrated a Toast component from the client package into the main App component.

package-lock.json

@@ -48801,11 +48801,17 @@
       "name": "@librechat/client",
       "version": "0.1.0",
       "devDependencies": {
+        "@rollup/plugin-alias": "^5.1.0",
+        "@rollup/plugin-commonjs": "^25.0.2",
         "@rollup/plugin-node-resolve": "^15.0.0",
-        "@rollup/plugin-typescript": "^11.0.0",
+        "@rollup/plugin-replace": "^5.0.5",
+        "@rollup/plugin-terser": "^0.4.4",
         "@types/react": "^18.0.0",
         "@types/react-dom": "^18.0.0",
+        "rimraf": "^5.0.1",
         "rollup": "^4.0.0",
+        "rollup-plugin-peer-deps-external": "^2.2.4",
+        "rollup-plugin-typescript2": "^0.35.0",
         "typescript": "^5.0.0"
       },
       "peerDependencies": {
@@ -48813,6 +48819,7 @@
         "@headlessui/react": "^2.2.4",
         "@radix-ui/react-separator": "^1.0.0",
         "@radix-ui/react-slot": "^1.0.0",
+        "@radix-ui/react-toast": "^1.0.0",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.0.0",
         "framer-motion": "^10.0.0",
@@ -48820,34 +48827,87 @@
         "react": "^18.0.0",
         "react-dom": "^18.0.0",
         "react-resizable-panels": "^3.0.3",
+        "recoil": "^0.7.7",
         "tailwind-merge": "^1.14.0"
       }
     },
-    "packages/client/node_modules/@rollup/plugin-typescript": {
-      "version": "11.1.6",
-      "resolved": "https://registry.npmjs.org/@rollup/plugin-typescript/-/plugin-typescript-11.1.6.tgz",
-      "integrity": "sha512-R92yOmIACgYdJ7dJ97p4K69I8gg6IEHt8M7dUBxN3W6nrO8uUxX5ixl0yU/N3aZTi8WhPuICvOHXQvF6FaykAA==",
+    "packages/client/node_modules/brace-expansion": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+      "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@rollup/pluginutils": "^5.1.0",
-        "resolve": "^1.22.1"
+        "balanced-match": "^1.0.0"
+      }
+    },
+    "packages/client/node_modules/glob": {
+      "version": "10.4.5",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-10.4.5.tgz",
+      "integrity": "sha512-7Bv8RF0k6xjo7d4A/PxYLbUCfb6c+Vpd2/mB2yRDlew7Jb5hEXiCD9ibfO7wpk8i4sevK6DFny9h7EYbM3/sHg==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "foreground-child": "^3.1.0",
+        "jackspeak": "^3.1.2",
+        "minimatch": "^9.0.4",
+        "minipass": "^7.1.2",
+        "package-json-from-dist": "^1.0.0",
+        "path-scurry": "^1.11.1"
+      },
+      "bin": {
+        "glob": "dist/esm/bin.mjs"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
+    "packages/client/node_modules/jackspeak": {
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/jackspeak/-/jackspeak-3.4.3.tgz",
+      "integrity": "sha512-OGlZQpz2yfahA/Rd1Y8Cd9SIEsqvXkLVoSw/cgwhnhFMDbsQFeZYoJJ7bIZBS9BcamUW96asq/npPWugM+RQBw==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "dependencies": {
+        "@isaacs/cliui": "^8.0.2"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      },
+      "optionalDependencies": {
+        "@pkgjs/parseargs": "^0.11.0"
+      }
+    },
+    "packages/client/node_modules/minimatch": {
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
+      "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
       },
       "engines": {
-        "node": ">=14.0.0"
+        "node": ">=16 || 14 >=14.17"
       },
-      "peerDependencies": {
-        "rollup": "^2.14.0||^3.0.0||^4.0.0",
-        "tslib": "*",
-        "typescript": ">=3.7.0"
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
+    "packages/client/node_modules/rimraf": {
+      "version": "5.0.10",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-5.0.10.tgz",
+      "integrity": "sha512-l0OE8wL34P4nJH/H2ffoaniAokM2qSmrtXHmlpvYr5AVVX8msAyW0l8NVJFDxlSK4u3Uh/f41cQheDVdnYijwQ==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "glob": "^10.3.7"
       },
-      "peerDependenciesMeta": {
-        "rollup": {
-          "optional": true
-        },
-        "tslib": {
-          "optional": true
-        }
+      "bin": {
+        "rimraf": "dist/esm/bin.mjs"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
       }
     },
     "packages/data-provider": {