Name emblems and boons instead of showing "Card #N"

Command-zone objects such as boons have small grpIds that aren't cards.
Name them from the log's name id (e.g. "The Ring") or the card that
created them ("Swiftspear's Teachings (boon)"), and preview the source
card on hover.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_gamestate.py

@@ -211,8 +211,8 @@ def test_commanders_are_not_emblems():
     g = t.game
     assert g.commander_status(ME) == [(8000, "command zone")]
     assert g.commander_status(OPP) == [(9000, "command zone")]
-    assert g.emblems(OPP) == {7777: 1}
-    assert g.emblems(ME) == {}
+    assert [o["grpId"] for o in g.emblems(OPP)] == [7777]
+    assert g.emblems(ME) == []
     assert sum(t.my_library_remaining().values()) == 3  # the commander isn't part of the library
 
     # Opponent casts their commander from the command zone: it's on the stack, tax goes up.
@@ -247,3 +247,22 @@ def test_known_cards_never_exceed_zone_size():
     t.handle(GreMessages([gsm(2, zones=[zone(OPP_HAND, "Hand", [201], OPP)], objects=[
         card(400, 7007, OPP_HAND, otype="RevealedCard"), card(401, 7008, OPP_HAND, otype="RevealedCard")])]))
     assert sum(t.game.opp_known_in("ZoneType_Hand").values()) == 1
+
+
+def test_command_zone_objects_are_named_from_log_or_source_card():
+    from mtga_assistant.carddb import command_object_info
+
+    class Cards:
+        def get(self, grp):
+            return CardInfo(grp_id=grp, name={97038: "Swiftspear's Teachings", 87496: "The Ring"}.get(grp, f"Card #{grp}"))
+
+        def loc(self, loc_id):
+            return {732510: "The Ring"}.get(loc_id)
+
+    boon = {"grpId": 6, "type": "GameObjectType_Boon", "objectSourceGrpId": 97038}
+    emblem = {"grpId": 2, "type": "GameObjectType_Emblem", "objectSourceGrpId": 87496, "name": 732510}
+    bare = {"grpId": 3, "type": "GameObjectType_Emblem"}
+    b, e, x = (command_object_info(Cards(), o) for o in (boon, emblem, bare))
+    assert (b.name, b.types, b.grp_id) == ("Swiftspear's Teachings (boon)", ("Boon",), 97038)  # hover shows the source card
+    assert (e.name, e.types, e.grp_id) == ("The Ring", ("Emblem",), 87496)
+    assert x.name == "Emblem" and x.grp_id == 0  # no source card: nothing to preview