v3.11.0 review fixes: ADM length, TAR re-render hygiene

- the ADM input capped the key at 8 chars, but the server's _verify_adm
  takes 4-16 hex digits (padded to 8 CHV bytes) and the old input had no
  limit; maxlength=16 now, with a static guard in html.test.js.
- cardsTarAdd/cardsTarRemove re-rendered the table from the save-path
  reader, so an emptied role field was silently refilled with its default.
  The renderer no longer invents defaults; a raw reader (cardsTarsFromTable)
  feeds Add/Remove and the language-switch refresh, while the save path
  (cardsTarsFromForm) keeps the default-filling for the mandatory roles.
- the editor's dynamic TAR/keyset rows now rebuild on a language switch
  (refreshDynamicI18n) from what is typed - their placeholders and titles
  carry t() strings.  (The title/Save label were already refreshed there.)
- dropped the now-unused cardsRoleMsl helper and its test references.
- docs: the ADM is documented as 4-16 hex digits (help EN/RU, api.md,
  AGENTS).  sw cache simple-v362.

Tests: 665 Python + 784 frontend green; the whole inline PWA script
syntax-checked.

frontend/tests/cards_counter.test.js

@@ -28,7 +28,7 @@ function extractFunc(src, name) {
 }
 
 let code = '';
-for (const fn of ['cardsTarList', 'cardsRoleDefault', 'cardsRoleTar', 'cardsRoleMsl',
+for (const fn of ['cardsTarList', 'cardsRoleDefault', 'cardsRoleTar',
 	'cardsTarEntry', 'cardsTarMsl', 'cardsApplyFields', 'cardsApply',
 	'spRefreshFromPreset', 'spPorAccepted', 'spNextCntr', 'spPresetIdx',
 	'spKeysetKvnOf', 'spKeysetList', 'spKeysetFor', 'spKeysetCheck',