feat: blockchain rescan via daemon restart + status bar progress

- Fix z_importwallet to use full path instead of filename only
- Add rescanBlockchain() method that restarts daemon with -rescan flag
- Track rescan progress via daemon output parsing and getrescaninfo RPC
- Display rescan progress in status bar with animated indicator when starting
- Improve dark theme card contrast: lighter surface-variant, tinted borders, stronger rim-light

src/ui/windows/request_payment_dialog.cpp

@@ -9,8 +9,6 @@
 #include "../schema/ui_schema.h"
 #include "../widgets/qr_code.h"
 #include "../material/draw_helpers.h"
-#include "../theme.h"
-#include "../effects/imgui_acrylic.h"
 #include "imgui.h"
 
 #include <string>
@@ -130,14 +128,7 @@ void RequestPaymentDialog::render(App* app)
     auto qr = S.drawElement("dialogs.request-payment", "qr-code");
     auto actionBtn = S.button("dialogs.request-payment", "action-button");
 
-    ImGui::SetNextWindowSize(ImVec2(win.width, win.height), ImGuiCond_FirstUseEver);
-    ImVec2 center = ImGui::GetMainViewport()->GetCenter();
-    ImGui::SetNextWindowPos(center, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
-    ImGui::SetNextWindowFocus();
-
-    const auto& acrylicTheme = GetCurrentAcrylicTheme();
-    ImGui::OpenPopup("Request Payment");
-    if (effects::ImGuiAcrylic::BeginAcrylicPopupModal("Request Payment", &s_open, ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoTitleBar, acrylicTheme.popup)) {
+    if (material::BeginOverlayDialog("Request Payment", &s_open, win.width, 0.94f)) {
         const auto& state = app->getWalletState();
         
         ImGui::TextWrapped(
@@ -284,8 +275,8 @@ void RequestPaymentDialog::render(App* app)
         if (material::StyledButton("Close", ImVec2(actionBtn.width, 0), S.resolveFont(actionBtn.font))) {
             s_open = false;
         }
+        material::EndOverlayDialog();
     }
-    effects::ImGuiAcrylic::EndAcrylicPopup();
     
     // Cleanup on close
     if (!s_open && s_qr_texture != 0) {