Adds a top-level disclaimer section to README + a dedicated
docs/crm-disclaimers.md spelling out two areas where picpeak ships
defaults the operator MUST review before going live:
1. Contract blocks (image rights, NDA, model release, cancellation,
jurisdiction, …) — written by the maintainer, NOT by a lawyer.
Every operator must have their lawyer review and adapt them
before sending any contract to a customer.
2. QR-bills and SEPA EPC payloads — rendered from the data the
operator typed. Picpeak is open source; we recommend scanning a
test invoice with the operator's bank app to verify the QR
actually works.
Matches the on-screen amber disclaimers already shown on the
Contract Block Library page and the Business Profile payment-block
editor.