Content Calendar

Build an internal tool for my team: "Content Calendar".

The problem: Our content plan lives in four different docs and nobody trusts any of them.
Who uses it: a team of 2–15 people.

What it should do:
- Publishing calendar: Month view of everything going out, colour-coded by channel.
- Scheduled pieces: Each piece has an owner, channel, status and a link to the draft.
- Add a piece: Drop an idea on a date; it starts life as 'Idea' and moves to 'Published'.
- Idea backlog: A list of unscheduled ideas anyone on the team can add to.

Data:
- Piece { title, channel, owner, status, publish_on, draft_url }
- Channel { name, color }

Constraints:
- Built for one team inside one company. Simple sign-in (or none), no billing, no multi-tenant setup.
- Fast, calm and obvious enough that teammates need zero training.
- Data must persist and be shared across the team.
- Ship the simplest version that works, then tell me what you'd add next.

Works with Claude, ChatGPT, Cursor, Lovable, Replit or Type.