AD-1001: Add Example Workspace

[alph-cmky]

Source: docs/development/task-backlog.md

Milestone: Phase 10: Packaging and Examples

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AD-1001: Add Example Workspace

Goal: Provide a small demo showing the local-first workflow.

Files:

• Create examples/basic-agent-workspace/README.md
• Create examples/basic-agent-workspace/agents/reviewer.json
• Create examples/basic-agent-workspace/workflows/review-flow.json

Tasks:

• Add one code reviewer agent.
• Add one review workflow with Start, Agent, Human Approval, and End.
• Document how to run the demo locally.
• Commit with message docs: add basic agent workspace example.

Acceptance Criteria:

• A new user can inspect a realistic agent and workflow without creating one from scratch.