The SCP80/RAM forms hold a copy of the preset (counter, keys, TAR, SPI).
Editing the preset on the Cards tab saved correctly, but the form kept the
old copy: the operation sent the stale counter (the card answers cntr_low)
and the post-send sync wrote the stale value back over the preset - the
saved counter silently reverted. Reproduced in a real DOM:
after select in SCP80: preset=0000000001 sp=0000000001
after Cards edit+save: preset=00000000AA sp=0000000001
after a sync: preset=0000000001 (edit lost)
- `cardsApply()` split into `cardsApplyFields()` (field copy, no packet) and
`cardsApply()` = fields + genSp; new `spRefreshFromPreset(selId)` re-reads
the selected preset from `sp-card-sel` / `ram-card-sel` and re-applies it.
- `pysimSendOta()` and `ramExecute()` call it before starting, so every
SCP80/RAM operation uses the preset as it is now.
- A rejected send no longer advances the counter: new `spPorAccepted(por)`
gates the advance+write-back in `pysimSendOta`, the Explore pagination and
its GET DATA step, and the server's RAM install (`_ram_next_cntr`: advance
only for `por_ok`/`no_por` steps). A failed install still returns
`final_cntr` (the accepted prefix) and the PWA persists it, so a retry
never replays a counter the card already consumed.
- tests: cards_counter.test.js (the stale-form regression, RAM selector,
fields-without-genSp, spPorAccepted) and `_ram_next_cntr` cases; the
cards_form/ram harnesses updated for the split.
- docs/api.md counter semantics; AGENTS preset-source-of-truth rule.
607 frontend / 488 Python green; version 3.6.3; sw simple-v276.
