[BUG] Missing dist directory in `sylphx/synth-go`

[kokororin]

🐛 Bug Description

📋 Steps to Reproduce

1. Run npm install @sylphx/synth-go.
2. Navigate to the installation directory: cd node_modules/@sylphx/synth-go.
3. Observe that the dist folder is missing.

✅ Expected Behavior

The node_modules/@sylphx/synth-go directory should contain a dist folder with the compiled JavaScript and TypeScript declaration files.

❌ Actual Behavior

The dist directory is absent from the installed package. Consequently, any attempt to import the package fails because the main or exports fields in package.json likely point to non-existent files within dist.

📸 Screenshots / Logs

Paste error logs here

🖥️ Environment

Package Information:

• Package name: [e.g., @sylphx/pdf-reader-mcp]
• Package version: [e.g., 1.2.3]
• Installation method: [e.g., npm, npx, Docker]

System Information:

• OS: [e.g., macOS 14.0, Windows 11, Ubuntu 22.04]
• Node.js version: [e.g., v20.0.0]
• npm/bun version: [e.g., 9.0.0]

Additional Context:

• MCP Client: [e.g., Claude Desktop, Cline, n/a]
• Other relevant tools: [e.g., Docker Desktop 4.0]

🔄 Reproducibility

• Always
• Sometimes
• Rarely
• Only once

🔍 Additional Context

💡 Possible Solution

📝 Related Issues

• Related to #