bvandeusen
f38864088b
`complete_reminder` cleared `remind_at` and said so in its own comment — "(Recurrence advancement is a later refinement.)". So Done on a daily reminder was quietly the last time it ever fired. Reminder notifications made that much easier to hit, because Done is now a button in the notification shade. **The server already had this.** `src/thoughtsync/notes/recurrence.py` has done it correctly all along, which means the web behaved one way and the desktop and Android the other, on the same note, in the same account. This is a port of that file rather than a fresh implementation, kept behaviourally identical rather than merely similar: the same reminder can be completed from a browser or a client, and a disagreement would move it depending on which one you happened to use. The seven new tests in `core/src/local/recur.rs` mirror the Python suite case for case, including the one that matters most in practice — 31 January plus a month is 28 February, and the step after that is 28 March rather than back to the 31st. That clamp is sticky, and it is now asserted on both sides so a future "fix" to either has to change both. Advancement is measured from the reminder's own time, never from now, which is what keeps a 09:00 daily reminder at 09:00 when it is dealt with at 09:47. A phone left in a drawer for a fortnight rolls forward to tomorrow rather than arriving at fourteen pending occurrences of the same thing. Also matched from the server, and a latent bug of its own: the non-recurring branch now clears `recurrence` as well as `remind_at`. Before, completing a note that carried a rule left the rule behind with no reminder attached — invisible in every UI, since they only render recurrence when there is a reminder to recur from, and waiting to surprise whoever next set a time on that note. Documented rather than hidden, and shared with the server: the arithmetic is in UTC and a note carries no timezone, so a daily reminder crossing a DST boundary keeps its UTC time and shifts by an hour locally. Fixing that means a zone per note, which is a wire-format change. Verified in the CI image before pushing: fmt, clippy --all-targets -D warnings, and the full suite — core 89 to 96, ffi 11 to 12. The new FFI test walks the path the notification's Done button actually takes.