fix: restore MF after fast-init probing so eUICC cards init cleanly (v2.8.1)

With an eUICC in the reader the fast init raised SwMatchError twice and
fell back to the stock pysim init: pick_profile_no_reset() disables the
physical resets that CardProfile.match_with_card() normally performs, so
the successful SGP.22 probe leaves the ISD-R ADF selected.  RuntimeState
then selects MF by FID (00 A4 00 04 02 3F00) from within the ADF, which
this card answers with 6A82.

- _restore_mf_after_probe() re-selects MF after the profile pick: the
  cheap select keeps the reset-free path for normal cards, a physical
  reset covers cards that refuse the MF select from an ADF.
- The EID read restores with rs.reset() (soft reset, escalating to a
  physical reset) instead of rs.soft_reset(), which had the same trap.
- tests: FakeScc mf_select_error mode + two _restore_mf_after_probe
  cases (no reset / exactly one physical reset).

frontend/index.html

@@ -1436,7 +1436,7 @@
 // ===== Version =====
 // Single source of truth for the PWA version: shown in the header and used
 // by the server version check in pysimConnect().
-const SIMPLE_VERSION = '2.8.0';
+const SIMPLE_VERSION = '2.8.1';
 document.getElementById('app-version').textContent = 'v' + SIMPLE_VERSION;
 
 // ===== Tab switching =====