fix: remove agent: Onboarding from /onboarding command frontmatter

[marcusquinn]

Summary

• Removes agent: Onboarding from the /onboarding command YAML frontmatter in generate-opencode-commands.sh
• On fresh installs, the Onboarding agent doesn't exist yet (it's created by generate-opencode-agents.sh which writes to opencode.json), causing "Agent not found" errors when OpenCode processes the /onboarding command
• The command now runs on the current default agent (Build+), which is always available

Root Cause

The /onboarding command file written to ~/.config/opencode/command/onboarding.md contained:

---
description: Interactive onboarding wizard
agent: Onboarding
---

When OpenCode reads this frontmatter, it tries to switch to the "Onboarding" agent — which only exists after generate-opencode-agents.sh has run and written agent config into opencode.json. On first run, that file doesn't exist.

Related PRs

• fix: decouple OpenCode commands from config guard, reorder after CLI install, add auth check #698 — Decoupled OpenCode commands from config guard
• fix: remove auth gate from onboarding launch #702 — Removed auth gate from onboarding launch
• fix: remove --agent Onboarding flag from opencode launch #704 — Removed --agent "Onboarding" flag from opencode launch command
• This PR fixes the third and final layer where the Onboarding agent was referenced

Testing

• ShellCheck clean (no new violations)
• VM self-test: bash tests/test-vm-setup.sh --branch bugfix/onboarding-command-agent-frontmatter

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch bugfix/onboarding-command-agent-frontmatter

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[github-actions]

🔍 Code Quality Report

�[0;35m[MONITOR]�[0m Code Review Monitoring Report

�[0;34m[INFO]�[0m Latest Quality Status:
SonarCloud: 0 bugs, 0 vulnerabilities, 45 code smells

�[0;34m[INFO]�[0m Recent monitoring activity:
Mon Feb 9 02:00:30 UTC 2026: Code review monitoring started
Mon Feb 9 02:00:30 UTC 2026: SonarCloud - Bugs: 0, Vulnerabilities: 0, Code Smells: 45

📈 Current Quality Metrics

• BUGS: 0
• CODE SMELLS: 45
• VULNERABILITIES: 0

Generated on: Mon Feb 9 02:00:33 UTC 2026

---

Generated by AI DevOps Framework Code Review Monitoring

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud