feat: add kamino-lend - Kamino Lend integration

[GeoGu360]

Summary

• 接入 Kamino Lend，Solana 上最大的借贷协议（TVL $3B+）
• 支持操作：markets（市场利率）、positions（持仓）、supply（存款）、withdraw（提款）、borrow（借款，dry-run）、repay（还款，dry-run）
• 支持链：Solana mainnet (501)
• 类型：Skill + Binary (Rust)
• 所有链上操作走 onchainos wallet contract-call --chain 501 --unsigned-tx (base58) --force

Plugin Structure

submissions/kamino-lend/
├── plugin.yaml
├── skills/kamino-lend/SKILL.md
├── src/
│   ├── main.rs
│   ├── api.rs
│   ├── config.rs
│   ├── onchainos.rs
│   └── commands/
├── Cargo.toml
├── LICENSE
└── README.md

Checklist

• plugin-store lint 通过（0 errors）
• 所有链上操作走 onchainos CLI
• SKILL.md 包含完整命令文档
• plugin.yaml api_calls 已声明
• 测试用例全部通过（10/10）
• 支持 --dry-run 模式

Test Results

• L4 supply 0.001 SOL: https://solscan.io/tx/ijx32Aa8dd1Z9wkXoFui2x7owtyB66R9XJMakfZpZvBbDdUrxwu7i3QHsgD2WngJoUNB9L4p2Jh6t7GxVQKzf8n
• L4 withdraw 0.001 SOL: https://solscan.io/tx/65TtWHCYSyCiMc7cNKzCDXAo31bTqma2DLj1nKeXxWmj83pREgekuVcbsoPnXRcQskPwU9p6WY6dJqAaDGkbDv9Y

🤖 Generated with Claude Code

[github-actions]

📋 Phase 3: AI Code Review Report — Score: N/A/100

Plugin: kamino-lend | Recommendation: 👤 Manual review required

🔗 Reviewed against latest onchainos source code (live from main branch) | Model: unavailable via Anthropic API | Cost: N/A

This is an advisory report. It does NOT block merging. Final decision is made by human reviewers.

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❌ AI review FAILED (HTTP 401): x-api-key header is required. Request size: 671133 bytes, plugin content: 6666 bytes.

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Generated by Claude AI via Anthropic API — review the full report before approving.

[github-actions]

Phase 4: Summary + Pre-flight for kamino-lend

Review below. AI Code Review is in a separate check.

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Auto-injected Pre-flight

## Pre-flight Dependencies (auto-injected by Plugin Store CI)

> Run once per session before first use. These checks ensure required tools are installed.

### Install onchainos CLI (auto-injected)

```bash
onchainos --version 2>/dev/null || curl -fsSL https://raw.githubusercontent.com/okx/onchainos-skills/main/install.sh | sh

Install kamino-lend binary (auto-injected)

if ! command -v kamino-lend >/dev/null 2>&1; then
  OS=$(uname -s | tr A-Z a-z)
  ARCH=$(uname -m)
  case "${OS}_${ARCH}" in
    darwin_arm64)  TARGET="aarch64-apple-darwin" ;;
    darwin_x86_64) TARGET="x86_64-apple-darwin" ;;
    linux_x86_64)  TARGET="x86_64-unknown-linux-gnu" ;;
    linux_aarch64) TARGET="aarch64-unknown-linux-gnu" ;;
  esac
  curl -fsSL "https://github.com/okx/plugin-store-community/releases/download/plugins/kamino-lend@0.1.0/kamino-lend-${TARGET}" -o ~/.local/bin/kamino-lend
  chmod +x ~/.local/bin/kamino-lend
fi

---

</details>

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*Generated by Plugin Store CI after maintainer approval.*

[github-actions]

🔨 Phase 2: Build Verification — ✅ PASSED

Plugin: kamino-lend | Language: rust
Source: GeoGu360/onchainos-plugins@866b8a55

Compiled from developer source code by our CI. Users install our build artifacts.

Build succeeded. Compiled artifact uploaded as workflow artifact.

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Source integrity: commit SHA 866b8a5550e4c3f0bf74b5874ea652025ddd564c is the content fingerprint.

[github-actions]

✅ Phase 1: Structure Validation — PASSED

Linting submissions/kamino-lend...

  ⚠️  [W100] suspicious pattern: 'base64' — contains base64 reference — may embed hidden content
  ⚠️  [W100] suspicious pattern: 'curl ' — contains curl command — external network request

✓ Plugin 'kamino-lend' passed with 2 warning(s)

→ Proceeding to Phase 2: Build Verification