Add account manager, character reordering, and glue Lua console

Three features layered onto the Turtle WoW baseline:

- Account manager (AccountLogin.lua / .xml): saved-account list backed
  by Windows Credential Manager via ClassicAPI. Pass-through to
  LoginWithSavedAccount; per-account 'last used' timestamp; password
  field hides itself when the typed name matches a saved entry and a
  'Change password' button reveals it on demand.
- Character reordering (CharacterSelect.lua / .xml): drag-to-reorder
  the character list, persisted via ClassicAPI's
  GetSavedCharacterOrder / SetSavedCharacterOrder.
- Glue Lua console (GlueConsole.lua / .xml, new files): in-glue RunScript
  console reachable from the title and char-select screens.

Currently no key opens the console — the backtick binding was removed
pending a ClassicAPI EditBox arrow/key script handler (see TODO.md section 96).

GlueConsole.lua

@@ -0,0 +1,65 @@
+GLUE_CONSOLE_MAX_LINES = 200;
+
+function GlueConsole_OnLoad()
+	GlueConsoleOutput:SetFading(false);
+	GlueConsoleOutput:SetMaxLines(GLUE_CONSOLE_MAX_LINES);
+	GlueConsoleOutput:SetJustifyH("LEFT");
+
+	-- ChatFrameBackground is a white pixel; tint to dark + faint border.
+	GlueConsoleInput:SetBackdropColor(0, 0, 0, 0.7);
+	GlueConsoleInput:SetBackdropBorderColor(0.4, 0.4, 0.4, 1);
+
+	-- Route print() output into the console so RunScript("print(...)") is visible.
+	local original_print = print;
+	print = function(...)
+		local parts = {};
+		for i = 1, arg.n do
+			parts[i] = tostring(arg[i]);
+		end
+		GlueConsole_Print(table.concat(parts, "  "));
+		if ( original_print ) then
+			original_print(unpack(arg));
+		end
+	end
+end
+
+function GlueConsole_Print(msg)
+	if ( msg == nil ) then msg = "nil"; end
+	GlueConsoleOutput:AddMessage(tostring(msg));
+end
+
+function GlueConsole_Toggle()
+	if ( GlueConsoleFrame:IsVisible() ) then
+		GlueConsoleInput:ClearFocus();
+		GlueConsoleFrame:Hide();
+	else
+		GlueConsoleFrame:Show();
+		GlueConsoleFrame:Raise();
+		GlueConsoleInput:SetFocus();
+	end
+end
+
+-- Returns true if a backtick was found in the EditBox text. Strips it and toggles the console.
+-- Used as an OnTextChanged interceptor so backtick still toggles the console while an EditBox has focus
+-- (the parent frame's OnKeyDown doesn't fire when an EditBox has consumed the keystroke).
+function GlueConsole_StripBacktickAndToggle(editBox)
+	local text = editBox:GetText();
+	if ( text == nil ) then return false; end
+	if ( string.find(text, "`", 1, true) == nil ) then return false; end
+	editBox:SetText((string.gsub(text, "`", "")));
+	GlueConsole_Toggle();
+	return true;
+end
+
+function GlueConsole_Submit()
+	local text = GlueConsoleInput:GetText();
+	GlueConsoleInput:SetText("");
+	if ( text == nil or text == "" ) then return; end
+
+	GlueConsole_Print("> " .. text);
+	if ( RunScript ) then
+		RunScript(text);
+	else
+		GlueConsole_Print("|cffff4444RunScript is not available in this context|r");
+	end
+end