docs: Update documentation for staking features

- Comprehensive README update with staking guide and setup instructions
- Add CHANGELOG.md documenting major DeFi staking release
- Update package.json description and keywords for staking capabilities
- Include troubleshooting section and development guidelines

package.json

@@ -1,7 +1,7 @@
 {
   "name": "PaperclipWallet",
   "version": "1.0.0",
-  "description": "Desktop wallet for PaperclipChain ($CLIPS)",
+  "description": "Desktop wallet for PaperclipChain with DeFi staking capabilities",
   "main": "main.js",
   "scripts": {
     "start": "electron .",
@@ -51,7 +51,11 @@
     "PaperclipChain",
     "CLIPS",
     "Desktop",
-    "Wallet"
+    "Wallet",
+    "Staking",
+    "DeFi",
+    "Cryptocurrency",
+    "Blockchain"
   ],
   "author": "Matt <matt@takoyaki.cool>",
   "url": "https://takoyaki.cool",