perf: project-wide optimization pass + UI/theme fixes

Optimization (audited across src/, typecheck green):
- Crash guards: PurchaseAuction data?.result + stray text-node, AuctionItemDetail
  length>0, LiveAuction user?.contractorId, KYC params guard
- Hoisted render-defined components: Login MinimalInput (keyboard-focus bug),
  TenderFullDetail Section/InfoBox (subtree remount)
- Memoized hot paths: Spreadsheet ColumnHeaderRow/DataRow, list makeStyles,
  shared infinite-query select (stops per-render flatMap)
- Removed hot-path/in-list console logs; SkeletonList 10->1 shimmer

UI/theme: themed AppToast, redesigned sidebar drawer, list empty states,
KYC WebView cleanup

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

package-lock.json

@@ -37,7 +37,6 @@
         "moment": "2.30.1",
         "react": "19.0.0",
         "react-native": "0.79.0",
-        "react-native-alert-notification": "0.4.2",
         "react-native-app-intro-slider": "4.0.4",
         "react-native-blob-util": "0.24.6",
         "react-native-bouncy-checkbox": "4.1.2",
@@ -12831,17 +12830,6 @@
         }
       }
     },
-    "node_modules/react-native-alert-notification": {
-      "version": "0.4.2",
-      "resolved": "https://registry.npmjs.org/react-native-alert-notification/-/react-native-alert-notification-0.4.2.tgz",
-      "integrity": "sha512-98EQ+DtI7thEAHzoXMbN8dZRCFcoGXMRYYIKvooPPdASuuZIuON4oxCbJNDb6r6lebnPc/25JCD1tJPaoPNWnw==",
-      "license": "MIT",
-      "peerDependencies": {
-        "react": "*",
-        "react-native": ">=0.62.0",
-        "react-native-safe-area-context": "*"
-      }
-    },
     "node_modules/react-native-animatable": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/react-native-animatable/-/react-native-animatable-1.4.0.tgz",