[Bug]: Opencode configuration is incorrect

[LuisPeregrina]

code-review-graph version

2.3.6

Operating system

macOS

Python version

3.13.3

AI platform

opencode

Output of code-review-graph status

n/a

Steps to reproduce

1. pip install code-review-graph
2. code-review-graph install --platform opencode

Expected vs actual behavior

Expected:
Upsert opencode.json or opencode.jsonc (no dot):

{
  "mcp": {
    "code-review-graph": {
      "enabled": true,
      "type": "local",
      "command": [
        "uvx",
        "code-review-graph",
        "serve"
      ]
    }
  }
}

Actual:
New file .opencode.json (with dot) with claude schema:

{
  "mcpServers": {
    "code-review-graph": {
      "command": "uvx",
      "args": [
        "code-review-graph",
        "serve"
      ],
      "cwd": "eval of pwd",
      "type": "stdio",
      "env": []
    }
  }
}

Additional context

No response