v0.4.8: seven UX fixes for the BAL inheritance plugin

- #04: Raw/Date selector now reappears on the WILL/HEIR tabs when switching to
  ADVANCED (and when a raw value is pushed from the wizard), keeping the current
  value/editor. New BalTimeEditWidget.apply_user_type_visibility() wired into
  WillSettingsWidget for both the locktime and check-alive boxes.
- #3: Building Will report window minimum height 500 -> 450 px.
- #5: 'User Type' setting moved to the bottom, above 'Rebroadcast transactions'.
- #6: enabling ADVANCED now requires typing 'at My Risk' (case-insensitive);
  wrong phrase or cancel reverts to BASIC. QInputDialog added to common import.
- #7a: on CHECK with an emptied wallet, an extra reassuring line is shown on
  'Checking your will': 'Inheritance already executed (on blockchain)' in GREEN
  (CONFIRMED) or 'Inheritance in mempool (waiting confirmation)' in ORANGE
  (MEMPOOL). New _executed_inheritance_status() helper.
- #7b: 'Balance is too low, or CheckAlive is in the past. Skipped' (space added)
  recoloured to ORANGE instead of red.
- Reset button renamed 'Reset setting' -> 'Reset to Default Setting'.
- Added tests/test_group_h_v048.py (8 tests). Version 0.4.7 -> 0.4.8.
  Full suite: 266 passed; ruff clean; CHANGELOG #24; memory updated (#04 done).

tests/test_group_h_v048.py

@@ -0,0 +1,127 @@
+"""
+Tests for the v0.4.8 changes (Group H).
+
+These tests cover the small, GUI-free DECISION LOGIC introduced in v0.4.8,
+without importing the Qt widgets (which need PyQt6 + an Electrum window). For
+each behaviour we reproduce the exact rule the production code uses, so the
+tests stay fast and headless while still pinning the contract.
+
+Covered behaviour:
+
+  * #7a - "executed inheritance" detection used to show a reassuring note on the
+    "Checking your will" row when the wallet is empty because the inheritance was
+    already executed (CONFIRMED) or is on its way (MEMPOOL). The rule:
+    CONFIRMED takes precedence over MEMPOOL, and only when neither is present is
+    the will treated as "really changed" (None).
+  * #6 - the "at My Risk" confirmation gate for enabling ADVANCED mode. The
+    typed phrase is accepted case-insensitively; anything else (or a cancel)
+    must keep the user in BASIC.
+
+Run:
+    PYTHONPATH=electrum-src python3 -m pytest tests/test_group_h_v048.py -q
+"""
+
+import os
+import sys
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), os.pardir))
+
+
+# ------------------------------------------------------------------ #
+# Mocks
+# ------------------------------------------------------------------ #
+
+class FakeWillItem:
+    """Minimal will item exposing only ``get_status`` like the real WillItem."""
+
+    def __init__(self, statuses):
+        # ``statuses`` is a set of status names that are True for this item.
+        self._statuses = set(statuses)
+
+    def get_status(self, status):
+        return status in self._statuses
+
+
+def executed_inheritance_status(willitems):
+    """GUI-free copy of ``BalDialog._executed_inheritance_status``.
+
+    Mirrors the production rule exactly (see bal/gui/qt/dialogs.py):
+      * return "CONFIRMED" as soon as any item is confirmed on-chain;
+      * otherwise return "MEMPOOL" if any item is in the mempool;
+      * otherwise return None.
+    """
+    has_mempool = False
+    for witem in willitems.values():
+        if witem.get_status("CONFIRMED"):
+            return "CONFIRMED"
+        if witem.get_status("MEMPOOL"):
+            has_mempool = True
+    return "MEMPOOL" if has_mempool else None
+
+
+def advanced_phrase_ok(text, accepted):
+    """GUI-free copy of the ADVANCED gate check (see on_user_type_change).
+
+    Returns True only when ``text`` equals the confirmation phrase ignoring
+    surrounding whitespace and letter case. ``accepted`` is False when the input
+    dialog was cancelled, which must never enable ADVANCED.
+    """
+    if not accepted:
+        return False
+    return text.strip().lower() == "at my risk"
+
+
+# ------------------------------------------------------------------ #
+# #7a - executed-inheritance detection
+# ------------------------------------------------------------------ #
+
+def test_executed_status_confirmed_wins():
+    """A confirmed transaction reports CONFIRMED even if a mempool one exists."""
+    willitems = {
+        "a": FakeWillItem({"MEMPOOL"}),
+        "b": FakeWillItem({"CONFIRMED"}),
+    }
+    assert executed_inheritance_status(willitems) == "CONFIRMED"
+
+
+def test_executed_status_mempool_only():
+    """With only a mempool transaction the status is MEMPOOL."""
+    willitems = {"a": FakeWillItem({"MEMPOOL"})}
+    assert executed_inheritance_status(willitems) == "MEMPOOL"
+
+
+def test_executed_status_none_when_neither():
+    """No confirmed/mempool item -> None (the will really has to be rebuilt)."""
+    willitems = {"a": FakeWillItem({"VALID"})}
+    assert executed_inheritance_status(willitems) is None
+
+
+def test_executed_status_empty():
+    """No will items at all -> None."""
+    assert executed_inheritance_status({}) is None
+
+
+# ------------------------------------------------------------------ #
+# #6 - "at My Risk" ADVANCED gate
+# ------------------------------------------------------------------ #
+
+def test_advanced_phrase_exact():
+    """The exact phrase as shown in the prompt is accepted."""
+    assert advanced_phrase_ok("at My Risk", True) is True
+
+
+def test_advanced_phrase_case_insensitive():
+    """Any capitalisation is accepted (case-insensitive)."""
+    for variant in ("at my risk", "AT MY RISK", "At My Risk", "  at my risk  "):
+        assert advanced_phrase_ok(variant, True) is True
+
+
+def test_advanced_phrase_wrong_text():
+    """A wrong phrase keeps the user in BASIC."""
+    assert advanced_phrase_ok("at your risk", True) is False
+    assert advanced_phrase_ok("", True) is False
+
+
+def test_advanced_phrase_cancelled():
+    """Cancelling the dialog (accepted=False) never enables ADVANCED."""
+    assert advanced_phrase_ok("at My Risk", False) is False