Docs: add advanced property claims triage playbook

[itprodirect]

Objective

Add an advanced, clearly bounded property claims triage playbook showing how MCP concepts could support a human-in-the-loop insurance workflow without turning this repo into a production claims/legal product.

Context

The business value of MCP is easiest to understand through real workflows. A claims triage playbook can connect this tutorial repo to practical insurance/public-adjusting use cases, but it must stay safe, educational, and sample-data-only.

Scope

Create:

playbooks/property-claims-triage.md

The playbook should explain a conceptual workflow such as:

Sanitized claim folder -> read-only MCP resource/tool demo -> AI triage summary -> human adjuster review -> checklist or draft support output

Acceptance criteria

• Playbook is clearly labeled as advanced and conceptual.
• Requires sample/sanitized data only.
• Explicitly warns against exposing real client data in tutorial workflows.
• States that no claim decisions, legal conclusions, demand letters, or client actions should be executed autonomously by AI.
• Includes a human-in-the-loop review checklist.
• Uses MCP vocabulary accurately: tools, resources, prompts, server boundaries.
• Links from README or docs only after the beginner path is clear.

Non-goals

• Do not implement a filesystem server in this issue.
• Do not add real claim documents.
• Do not create legal advice or final demand-letter generation.
• Do not add write-capable tools.

Validation

ruff check .
mypy --strict .
pytest -q

Suggested Claude Code review focus

Review for scope safety, overclaiming, legal/claims-risk language, and whether the playbook reinforces human professional review.