feat: replace agentforce-development skill with three specialized skills
Replace the monolithic agentforce-development skill with three focused skills:
- developing-agentforce: For creating and authoring Agentforce agents
- observing-agentforce: For monitoring and debugging agents
- testing-agentforce: For validating agent behavior
Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
