feat(governance): implement real blockchain data for governance section

- Update ElectionsInterface to fetch real elections from welati pallet
- Add MyVotes component for user voting history (proposals, elections, delegations)
- Add GovernanceHistory component for completed elections and proposals
- Integrate DelegationManager into GovernanceInterface delegation tab
- Fix linter errors across multiple files (unused imports, type annotations)
- Update eslint.config.js to ignore SDK docs and CJS files

web/src/components/ChainSpecs.tsx

@@ -113,7 +113,7 @@ const subdomains = [
 const ChainSpecs: React.FC = () => {
   const { t } = useTranslation();
   const [copiedId, setCopiedId] = useState<string | null>(null);
-  const [selectedSpec, setSelectedSpec] = useState<ChainSpec>(chainSpecs[0]);
+  const [selectedSpec] = useState<ChainSpec>(chainSpecs[0]);
   const navigate = useNavigate();
 
   const copyToClipboard = (text: string, id: string) => {