docs(web): add openspec-superpowers-opencode to ecosystem plugins

[moyaspace]

Issue for this PR

N/A - ecosystem addition

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

Adds openspec-superpowers-opencode to the ecosystem plugins list in both English and Chinese (zh-cn) versions of the ecosystem page.

How did you verify your code works?

• Verified the plugin row is correctly inserted in the Plugins table
• Confirmed Projects and Agents sections remain intact
• Compared fork content against upstream to ensure no data loss

Screenshots / recordings

N/A

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[github-actions]

Hey! Your PR title test doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

Thanks for updating your PR! It now meets our contributing guidelines. 👍