Initial rebrand: @polkadot -> @pezkuwi (14 packages)

- Package namespace: @polkadot/* -> @pezkuwi/*
- Repository: polkadot-js/common -> pezkuwichain/pezkuwi-common
- Author: Pezkuwi Team <team@pezkuwichain.io>

Core packages:
- @pezkuwi/util (utilities)
- @pezkuwi/util-crypto (crypto primitives)
- @pezkuwi/keyring (account management)
- @pezkuwi/networks (chain metadata)
- @pezkuwi/hw-ledger (Ledger hardware wallet)
- @pezkuwi/x-* (10 polyfill packages)

Total: 14 packages
Upstream: polkadot-js/common v14.0.1

package.json

@@ -0,0 +1,46 @@
+{
+  "author": "Pezkuwi Team <team@pezkuwichain.io>",
+  "bugs": "https://github.com/pezkuwichain/pezkuwi-common/issues",
+  "engines": {
+    "node": ">=18.14"
+  },
+  "homepage": "https://github.com/pezkuwichain/pezkuwi-common#readme",
+  "license": "Apache-2.0",
+  "packageManager": "yarn@4.9.1",
+  "private": true,
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/pezkuwichain/pezkuwi-common.git"
+  },
+  "sideEffects": false,
+  "type": "module",
+  "version": "14.0.1",
+  "versions": {
+    "git": "14.0.1",
+    "npm": "14.0.1"
+  },
+  "workspaces": [
+    "packages/*"
+  ],
+  "scripts": {
+    "build": "polkadot-dev-build-ts",
+    "build:networks": "polkadot-dev-run-test packages/networks/src",
+    "build:release": "polkadot-ci-ghact-build",
+    "build:rollup": "polkadot-exec-rollup --config",
+    "clean": "polkadot-dev-clean-build",
+    "deno": "yarn polkadot-dev-deno-map && yarn build && deno check --import-map=import_map.json mod.ts",
+    "lint": "polkadot-dev-run-lint",
+    "postinstall": "polkadot-dev-yarn-only",
+    "test": "polkadot-dev-run-test --env browser ^mnemonic/toMiniSecretCmp",
+    "test:mnemonicCmp": "polkadot-dev-run-test --env browser mnemonic/toMiniSecretCmp",
+    "test:node": "polkadot-dev-run-test --env browser ^mnemonic/toMiniSecretCmp",
+    "test:one": "polkadot-dev-run-test --env browser"
+  },
+  "devDependencies": {
+    "@pezkuwi/dev": "^0.83.3",
+    "@types/node": "^22.7.5"
+  },
+  "resolutions": {
+    "typescript": "^5.5.4"
+  }
+}