Add full monorepo: virtual-banker, backend, frontend, docs, scripts, deployment

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/specs/frontend/component-library.md

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+# Component Library Specification
+
+## Overview
+
+Reusable component library for the explorer platform.
+
+## Design System
+
+**Framework**: Tailwind CSS or styled-components
+**Design Tokens**: Colors, typography, spacing, shadows
+**Theme**: Light/dark mode support
+
+## Component Catalog
+
+### Common Components
+
+- Button
+- Input
+- Select
+- Modal
+- Table
+- Card
+- Badge
+- Tooltip
+- Loading spinner
+
+### Blockchain-Specific Components
+
+- Address display (with copy, ENS lookup)
+- Transaction hash display
+- Block number display
+- Token amount display (with formatting)
+- Gas price display
+- Status badges (success/failed/pending)
+
+### Data Display Components
+
+- Transaction list
+- Block list
+- Token list
+- Log viewer
+- Trace viewer
+- ABI viewer
+
+## Component API Contracts
+
+### Address Component
+
+```typescript
+interface AddressProps {
+  address: string;
+  chainId?: number;
+  showCopy?: boolean;
+  showENS?: boolean;
+  truncate?: boolean;
+}
+```
+
+### Transaction Component
+
+```typescript
+interface TransactionProps {
+  hash: string;
+  chainId: number;
+  showDetails?: boolean;
+  compact?: boolean;
+}
+```
+
+## Styling Approach
+
+**Recommendation**: Tailwind CSS
+
+**Benefits**:
+- Utility-first CSS
+- Consistent design system
+- Small bundle size
+- Fast development
+
+## References
+
+- Frontend Architecture: See `frontend-architecture.md`
+