feat: cherry-pick PR #183 — multi-provider support, PWA, dynamic models, UI improvements

Cherry-picked from decolua/9router PR #183.
Note: open-sse changes included but need further review due to extensive modifications.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/shared/components/KiroAuthModal.js

@@ -74,13 +74,13 @@ export default function KiroAuthModal({ isOpen, onMethodSelect, onClose }) {
       });
 
       const data = await res.json();
-      
+
       if (!res.ok) {
         throw new Error(data.error || "Import failed");
       }
 
-      // Success - close modal
-      onClose();
+      // Success - notify parent to refresh connections
+      onMethodSelect("import");
     } catch (err) {
       setError(err.message);
     } finally {