Add repository and bugs metadata to package.json

[xiaofengzii]

Summary

Add missing repository and bugs fields to package.json for npm metadata consistency.

Changes

• Added repository field: git+https://github.com/larksuite/lark-openapi-mcp.git
• Added bugs field: https://github.com/larksuite/lark-openapi-mcp/issues

Verification

npm view @larksuiteoapi/lark-mcp@0.5.1 repository bugs --json

After this PR, the output should include repository and bugs fields.

Fixes #315

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