Gastrosync?

Build a focused replacement for Gastrosync for a small sales team managing a defined pipeline, based on this public product description: “Gastrosync - Die ideale Gastronomie-Software für all eure Anlässe. — Gastrosync ist die Software für Gastronomie, mit der Teams Anfragen schneller bearbeiten, Angebote professionell erstellen und Anlässe sauber abrechnen.” Do not copy the original brand, proprietary assets, name, logo, UI, or copy; create an original visual system.

Core workflow
- Recreate only the narrow primary workflow described above, with store contacts, companies, notes, and one configurable pipeline; support search, filtering, next-action dates, and an activity timeline; provide import/export and duplicate handling; keep permissions, audit events, and integrations minimal and explicit.
- Keep the product name and source description in a research note in the README, and turn every uncertain behavior into an explicit assumption or user setting rather than inventing a feature.
- Use a small React/TypeScript app with a portable JSON or SQLite data model, clear loading/empty/error states, and adapters around external services. Seed realistic demo data so the complete workflow works without paid credentials.

Scope boundaries
- Out of scope for v1: sales intelligence data providers; automated outreach at scale; enterprise territory and forecasting parity. Do not promise feature parity, proprietary data, or enterprise reliability.

Include a README with setup, environment variables, data model, implementation decisions, privacy behavior, testing instructions, and important limitations.