TODO: Add "dottie" to agent-spawn-requirements.json

Spawning Dottie as subagent_type: "dottie" fails because the agent hook (~/.claude/hooks/) validates agent types against schemas/agent-spawn-requirements.json in claude-custom, and "dottie" is not listed there.

Add "dottie" as a recognized agent type in schemas/agent-spawn-requirements.json (claude-custom repo). Define its spawn requirements — likely: plan ref required (since Dottie does doc work, not repo work), no issue ref needed.

This broke during the pal-e-docs plan consolidation session (2026-03-13). Betty Sue tried to spawn Dottie to update memory and project page, but the hook blocked it. The four-agent model (Betty Sue, Dottie, Dev, QA) requires all four types to be in the schema.

~/claude-custom — schemas/agent-spawn-requirements.json