feat(resources): add bundled docs and workflow prompts

[millsmillsymills]

Summary

• add bundled markdown resources under flipper://reference/* and flipper://workflow/*
• register resources and prompts with FastMCP server creation
• document resources/prompts in README and changelog

Verification

• pre-commit during commit: ruff, ruff format, ty, bandit
• uv run pytest -m 'not integration' -q