feat: architecture refactor — core layer, spreadsheet engine, envelope bidding, tests

- Add src/core/ (config, errors, events, http, observability, storage, query)
- Add src/Spreadsheet/ engine with native POI backend and Excel bridge
- Add Envelope C spreadsheet flow and tender bidding envelope modules
- Consolidate components into src/components/, remove legacy Component/ and Hooks/
- Add registration state/validation, auth session guard, profile edit modules
- Add unit tests across axios, redux, bidding, registration, encryption, core
- Add CI workflow, docs (architecture, audit, DSC API spec), keystore example
- Remove tracked keystore binary; ignore scripts.zip

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/Screens/Auction/LiveAuction.tsx

@@ -7,12 +7,11 @@ import {
   StyleSheet,
 } from 'react-native';
 import Animated, { FadeInDown, FadeOutUp } from 'react-native-reanimated';
-import { RefreshCw } from 'lucide-react-native';
 import LiveAuctionTile from './LiveAuctionTile';
 import { useFetchLiveAuction } from '../../Services/ApiCall/Hooks';
-import { SearchInput } from '../../Component/Serach/SeacrhInput';
-import { Skelton } from '../../Component/Index';
-import SkeltonList from '../../Component/Skelton/SkeltonList';
+import { SearchInput } from '../../components/SearchInput';
+import { Skeleton } from '../../components';
+import SkeletonList from '../../components/SkeletonList';
 import { useDispatch, useSelector } from 'react-redux';
 import { togglePurchaseAuction } from '../../Redux/Slices/selectPurchaseAuction';
 import { useTheme } from '../../Hooks/useTheme';
@@ -20,7 +19,7 @@ import AppText from '../../components/AppText';
 
 const LiveAuction = () => {
   const Dispatch = useDispatch();
-  const { colors, spacing, shadows } = useTheme();
+  const { colors, shadows } = useTheme();
   const user = useSelector((state: any) => state.token?.token);
   const onEndReachedCalledDuringMomentum = useRef(true);
   const SelectedPurchaseList = useSelector((state: any) => state.selectPurchaseAuction);
@@ -64,6 +63,8 @@ const LiveAuction = () => {
         />
       );
     },
+    // Intentionally runs only on SelectedPurchaseList changes; other deps are stable or recreated each render.
+    // eslint-disable-next-line react-hooks/exhaustive-deps
     [SelectedPurchaseList],
   );
 
@@ -108,7 +109,7 @@ const LiveAuction = () => {
   }, [data, hasNextPage, isFetchingNextPage, isPending]);
 
   if (isLoading) {
-    return <Skelton />;
+    return <Skeleton />;
   }
 
   return (
@@ -138,7 +139,7 @@ const LiveAuction = () => {
 
       {/* List */}
       {isPending ? (
-        <SkeltonList />
+        <SkeletonList />
       ) : (
         <FlatList
           data={data?.result ?? []}