fix(ui): console-commands modal slide + wallets footer clipping

Two follow-ups to the modal float work:

- Console RPC command reference (renderCommandsPopup) had the SAME auto-height
  feedback bug as Wallets: BlurFloat with no cardHeight, and its fill-height
  command list read GetContentRegionAvail() inside the AutoResizeY child ->
  self-referential, sliding content off-screen after a monitor move. Give it a
  FIXED viewport-relative cardHeight (fills ~84% of the viewport). Also removed
  its duplicate body H6 heading (the framework h6 title already shows it) —
  missed earlier because it's spec-form, not the positional overload.

- Wallets footer clipping: after the fixed-height conversion the content child
  clips overflow (NoScrollbar), and the hardcoded 130*dp reserve below the table
  was too small for the create/add-folder rows + separator + footer (~160*dp),
  so the buttons clipped — worse at 150%. Compute the reserve from real widget
  metrics (GetFrameHeightWithSpacing + caption height) so it holds at any DPI.

Added a modal-console-commands sweep surface (debug-gated ConsoleTab setter) so
the popup is captured. Verified both at 100% and font_scale 1.5 (150%): footers
on-screen, single headings, lists fill, nothing clipped.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/ui/windows/wallets_dialog.h

@@ -69,8 +69,13 @@ public:
 
             const std::string active = app->settings() ? app->settings()->getActiveWalletFile() : "wallet.dat";
 
-            // Leave room below the table for the add-folder row + footer buttons.
-            float tableH = ImGui::GetContentRegionAvail().y - 130.0f * dp;
+            // Reserve room below the table for the create-wallet + add-folder rows (each a label +
+            // an input row), the separator, and the footer buttons — computed from real widget
+            // metrics so nothing clips at any DPI (a fixed px reserve was too small at 150%).
+            const float rowH = ImGui::GetFrameHeightWithSpacing();
+            const float lblH = Type().caption()->LegacySize + ImGui::GetStyle().ItemSpacing.y;
+            const float belowH = 3.0f * Layout::spacingSm() + 2.0f * lblH + 3.0f * rowH + Layout::spacingMd();
+            float tableH = ImGui::GetContentRegionAvail().y - belowH;
             if (tableH < 120.0f * dp) tableH = 120.0f * dp;
 
             const ImGuiTableFlags tflags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg |