feat: contraband list with flagging and optional removal

Staff list contraband items on a new dashboard page (item search, reason, flag or flag and remove;
contraband_manage to edit, reports_view to see). World servers check every inventory when a
character loads and every item a player receives: each find is an economy flag of the new kind
Contraband, shown with the other flags and in the character's related data. Items marked for
removal are taken away, with a character snapshot kept first so they can be given back, an audit
entry and a mail or chat message telling the player why. Staff are skipped unless
contraband_ignore_staff is off. Worlds reload the list when it changes (RELOAD_CONTRABAND, added
at the end of ePlayerAction).

Fixes #1563

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

dDatabase/GameDatabase/TestSQL/TestSQLDatabase.h

@@ -245,6 +245,11 @@ class TestSQLDatabase : public GameDatabase {
 	std::vector<ZoneLimit> GetZoneLimits() override { return {}; }
 	void SetZoneLimit(const ZoneLimit& limit) override {}
 	void DeleteZoneLimit(uint32_t zoneId) override {}
+	// IContraband
+	std::vector<ContrabandItem> GetContrabandItems() override { return {}; }
+	void SetContrabandItem(const ContrabandItem& item) override {}
+	bool DeleteContrabandItem(LOT lot) override { return false; }
+
 	// IFeaturedProperties
 	std::vector<FeaturedSlot> GetFeaturedPropertySlots() override { return {}; }
 	void SetFeaturedPropertySlot(const FeaturedSlot& slot) override {}