Add Pezkuwi SDK UI - Polkadot.js Apps clone

- Clone Polkadot.js Apps repository
- Update package.json with Pezkuwi branding
- Add Pezkuwi endpoint to production chains (wss://pezkuwichain.app:9944)
- Create comprehensive README for SDK UI
- Set up project structure with all packages

Next steps:
- Apply Kurdistan colors (Kesk, Sor, Zer, Spi + Black) to UI theme
- Replace logos with Pezkuwi branding
- Test build and deployment

pezkuwi-sdk-ui/packages/apps-config/src/api/spec/astar.ts

@@ -0,0 +1,42 @@
+// Copyright 2017-2025 @polkadot/apps-config authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+import type { OverrideBundleDefinition } from '@polkadot/types/types';
+
+// structs need to be in order
+/* eslint-disable sort-keys */
+
+const definitions: OverrideBundleDefinition = {
+  types: [
+    {
+      // on all versions
+      minmax: [0, undefined],
+      types: {
+        Keys: 'AccountId',
+        Address: 'MultiAddress',
+        LookupSource: 'MultiAddress',
+        AmountOf: 'Amount',
+        Amount: 'i128',
+        SmartContract: {
+          _enum: {
+            Evm: 'H160',
+            Wasm: 'AccountId'
+          }
+        },
+        EraStakingPoints: {
+          total: 'Balance',
+          stakers: 'BTreeMap<AccountId, Balance>',
+          formerStakedEra: 'EraIndex',
+          claimedRewards: 'Balance'
+        },
+        EraRewardAndStake: {
+          rewards: 'Balance',
+          staked: 'Balance'
+        },
+        EraIndex: 'u32'
+      }
+    }
+  ]
+};
+
+export default definitions;