feat: call desk redesign — 2-panel layout, collapsible sidebar, inline AI, ringtone

- Collapsible sidebar with Jotai atom (icon-only mode, persisted to localStorage)
- 2-panel call desk: worklist (60%) + context panel (40%) with AI + Lead 360 tabs
- Inline AI call prep card — known lead summary or unknown caller script
- Active call card with compact Answer/Decline buttons
- Worklist panel with human-readable labels, priority badges, click-to-select
- Context panel auto-switches to Lead 360 when lead selected or call incoming
- Browser ringtone via Web Audio API on incoming calls
- Sonner + Untitled UI IconNotification for toast system
- apiClient pattern: centralized post/get/graphql with auto-toast on errors
- Remove duplicate avatar from top bar, hide floating widget on call desk
- Fix Link routing in collapsed sidebar (was using <a> causing full page reload)
- Fix GraphQL field names: adStatus→status, platformUrl needs subfield selection
- Silent mode for DataProvider queries to prevent toast spam

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

package-lock.json

@@ -26,12 +26,13 @@
                 "qr-code-styling": "^1.9.2",
                 "react": "^19.2.3",
                 "react-aria": "^3.46.0",
-                "react-aria-components": "^1.15.1",
+                "react-aria-components": "^1.16.0",
                 "react-dom": "^19.2.3",
                 "react-hotkeys-hook": "^5.2.3",
                 "react-router": "^7.13.0",
                 "socket.io-client": "^4.8.3",
-                "tailwind-merge": "^3.4.0",
+                "sonner": "^2.0.7",
+                "tailwind-merge": "^3.5.0",
                 "tailwindcss": "^4.1.18",
                 "tailwindcss-animate": "^1.0.7",
                 "tailwindcss-react-aria-components": "^2.0.1"
@@ -5781,6 +5782,16 @@
                 "node": ">=10.0.0"
             }
         },
+        "node_modules/sonner": {
+            "version": "2.0.7",
+            "resolved": "http://localhost:4873/sonner/-/sonner-2.0.7.tgz",
+            "integrity": "sha512-W6ZN4p58k8aDKA4XPcx2hpIQXBRAgyiWVkYhT7CvK6D3iAu7xjvVyhQHg2/iaKJZ1XVJ4r7XuwGL+WGEK37i9w==",
+            "license": "MIT",
+            "peerDependencies": {
+                "react": "^18.0.0 || ^19.0.0 || ^19.0.0-rc",
+                "react-dom": "^18.0.0 || ^19.0.0 || ^19.0.0-rc"
+            }
+        },
         "node_modules/source-map-js": {
             "version": "1.2.1",
             "resolved": "http://localhost:4873/source-map-js/-/source-map-js-1.2.1.tgz",