docs: Add occtl CLI and skill to ecosystem documentation

[colinmollenhour]

https://github.com/colinmollenhour/opencode-occtl

occtl simply exposes more of the OpenCode SDK to a command line so agents can easily watch and wait on other sessions, spawn sessions in other projects, etc.

Issue for this PR

There is no related bug/feature, just adding a tool to the ecosystem page.

Type of change

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

What does this PR do?

Adds occtl to the Ecosystem page.

How did you verify your code works?

Manual and AI testing.

Screenshots / recordings

None

Checklist

[x] I have tested my changes locally
[x] I have not included unrelated changes in this PR

[github-actions]

This PR doesn't fully meet our contributing guidelines and PR template.

What needs to be fixed:

• Not all checklist items are checked. Please confirm you have tested locally and have not included unrelated changes.

Please edit this PR description to address the above within 2 hours, or it will be automatically closed.

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[github-actions]

Hey! Your PR title Add occtl CLI and skill to ecosystem documentation 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.

[Copilot]

Pull request overview

Adds occtl to the documentation “Ecosystem” page to highlight an external CLI/skill project that exposes more of the OpenCode SDK for session control.

Changes:

• Add a new entry for occtl under the “Projects” table on the Ecosystem docs page.

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[github-actions]

This pull request has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new pull request that follows our guidelines.