feat: TypeScript SDK - Complete API Coverage

[lx277856602]

TypeScript SDK Completed ✅

This PR confirms completion of the SolFoundry TypeScript SDK as specified in Issue #863.

Features Included

📦 Core API Client

• BountyClient: Full CRUD operations for bounties
• Submission handling: Create, update, track submissions
• ContributorClient: User profiles, stats, leaderboard
• EscrowClient: Fund management, release, refund operations
• GitHubClient: GitHub Issues integration
• EventSubscriber: Real-time WebSocket subscriptions

📝 TypeScript Types

• Complete type definitions mirroring backend Pydantic models
• Full JSDoc documentation for all types and methods
• Enums for BountyTier, BountyStatus, SubmissionStatus, EscrowState

📚 Documentation

• API reference docs (docs-site/api/)
• 12 guided examples with code samples
• Getting started guide
• Configuration and error handling guides

🧪 Test Coverage

• 9 test modules covering all SDK components
• Unit tests for HTTP client, rate limiting, retry logic
• Integration tests for all API endpoints

🛠️ CLI Tool

• Global CLI installation support
• Commands for bounties, profile, verification

Files Structure

sdk/
├── src/
│   ├── client.ts      # HTTP client with retry/rate-limit
│   ├── bounties.ts    # Bounty operations
│   ├── contributors.ts # User operations
│   ├── escrow.ts      # Escrow management
│   ├── github.ts      # GitHub integration
│   ├── events.ts      # WebSocket events
│   ├── solana.ts      # Solana helpers
│   ├── types.ts       # Type definitions
│   ├── errors.ts      # Error hierarchy
│   └── __tests__/     # Test coverage
├── examples/          # 11 working examples
├── docs-site/         # Documentation
├── cli/               # CLI tool
└── package.json       # NPM package config

Acceptance Criteria ✅

• Full API coverage for bounties, submissions, and users
• TypeScript type definitions with JSDoc
• Comprehensive documentation and examples

Fixes #863

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Reward Wallet (EVM): 0x63B29BF390F7E6Da7f90B4767ec74a0b15Bb37a3