feat: Rebrand Polkadot/Substrate references to PezkuwiChain

This commit systematically rebrands various references from Parity Technologies'
Polkadot/Substrate ecosystem to PezkuwiChain within the kurdistan-sdk.

Key changes include:
- Updated external repository URLs (zombienet-sdk, parity-db, parity-scale-codec, wasm-instrument) to point to pezkuwichain forks.
- Modified internal documentation and code comments to reflect PezkuwiChain naming and structure.
- Replaced direct references to  with  or specific paths within the  for XCM, Pezkuwi, and other modules.
- Cleaned up deprecated  issue and PR references in various  and  files, particularly in  and  modules.
- Adjusted image and logo URLs in documentation to point to PezkuwiChain assets.
- Removed or rephrased comments related to external Polkadot/Substrate PRs and issues.

This is a significant step towards fully customizing the SDK for the PezkuwiChain ecosystem.

bizinikiwi/pezframe/staking/runtime-api/src/lib.rs

@@ -0,0 +1,39 @@
+// This file is part of Bizinikiwi.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Runtime API definition for the staking pallet.
+
+#![cfg_attr(not(feature = "std"), no_std)]
+
+use codec::Codec;
+
+pezsp_api::decl_runtime_apis! {
+	pub trait StakingApi<Balance, AccountId>
+		where
+			Balance: Codec,
+			AccountId: Codec,
+	{
+		/// Returns the nominations quota for a nominator with a given balance.
+		fn nominations_quota(balance: Balance) -> u32;
+
+		/// Returns the page count of exposures for a validator `account` in a given era.
+		fn eras_stakers_page_count(era: pezsp_staking::EraIndex, account: AccountId) -> pezsp_staking::Page;
+
+		/// Returns true if a validator `account` has pages to be claimed for the given era.
+		fn pending_rewards(era: pezsp_staking::EraIndex, account: AccountId) -> bool;
+	}
+}