Add visual workflow builder, fix critical bugs, and add Arabic i18n support

package.json

@@ -77,6 +77,7 @@
     "@neslinesli93/qpdf-wasm": "^0.3.0",
     "@pdf-lib/fontkit": "^1.1.1",
     "@phosphor-icons/web": "^2.1.2",
+    "@retejs/lit-plugin": "^2.0.7",
     "@tailwindcss/vite": "^4.1.15",
     "@types/markdown-it": "^14.1.2",
     "@types/node-forge": "^1.3.14",
@@ -94,6 +95,7 @@
     "jspdf": "^4.0.0",
     "jspdf-autotable": "^5.0.2",
     "jszip": "^3.10.1",
+    "lit": "^3.3.2",
     "lucide": "^0.546.0",
     "markdown-it": "^14.1.0",
     "markdown-it-abbr": "^2.0.0",
@@ -114,6 +116,11 @@
     "pdfjs-dist": "^5.4.296",
     "pdfkit": "^0.17.2",
     "postal-mime": "^2.7.1",
+    "rete": "^2.0.6",
+    "rete-area-plugin": "^2.1.5",
+    "rete-connection-plugin": "^2.0.5",
+    "rete-engine": "^2.1.1",
+    "rete-render-utils": "^2.0.3",
     "sortablejs": "^1.15.6",
     "tailwindcss": "^4.1.14",
     "terser": "^5.44.0",