"""
Server-side example data — the sets behind every `/api/<x>/sample/` endpoint.

Ported from each feature's `data/mock.js` so a page seeded on a second machine
looks the same as one seeded on the first.

TWO RULES THE CLIENT SETS ALREADY HOLD HERE:

- Dates are generated relative to `today` AT REQUEST TIME. A fixture with
  absolute dates rots into a screen of stale rows, which is why the client's
  sets are generated per call rather than stored.
- Every row carries `is_sample = True`, which is what lets "Clear the example
  data" say what it is clearing rather than "delete all 10 rows".

Empty until the feature slices land (Phase 3+).
"""