console and mining tab visual improvements

src/app.cpp

@@ -104,6 +104,21 @@ bool App::init()
         DEBUG_LOGF("Warning: Could not load settings, using defaults\n");
     }
 
+    // Apply saved user font scale so fonts are correct on first reload
+    {
+        float fs = settings_->getFontScale();
+        if (fs > 1.0f) {
+            ui::Layout::setUserFontScale(fs);
+            // Fonts were loaded at default scale in Init(); rebuild now.
+            auto& typo = ui::material::Typography::instance();
+            ImGuiIO& io = ImGui::GetIO();
+            typo.reload(io, typo.getDpiScale());
+            // Consume the flag so App::update() doesn't double-reload
+            ui::Layout::consumeUserFontReload();
+            DEBUG_LOGF("App: Applied saved font scale %.1fx\n", fs);
+        }
+    }
+
     // Ensure ObsidianDragon config directory and template files exist
     util::Platform::ensureObsidianDragonSetup();
 
@@ -190,6 +205,39 @@ bool App::init()
     return true;
 }
 
+// ============================================================================
+// Pre-frame: font atlas rebuilds (must run BEFORE ImGui::NewFrame)
+// ============================================================================
+void App::preFrame()
+{
+    ImGuiIO& io = ImGui::GetIO();
+
+    // Hot-reload unified UI schema
+    {
+        PERF_SCOPE("PreFrame.SchemaHotReload");
+        ui::schema::UISchema::instance().pollForChanges();
+        ui::schema::UISchema::instance().applyIfDirty();
+    }
+
+    // Refresh balance layout config after schema reload
+    ui::RefreshBalanceLayoutConfig();
+
+    // If font sizes changed in the TOML, rebuild the font atlas
+    if (ui::schema::UISchema::instance().consumeFontsChanged()) {
+        auto& typo = ui::material::Typography::instance();
+        typo.reload(io, typo.getDpiScale());
+        DEBUG_LOGF("App: Font atlas rebuilt after hot-reload\n");
+    }
+
+    // If the user changed font scale in Settings, rebuild the font atlas
+    if (ui::Layout::consumeUserFontReload()) {
+        auto& typo = ui::material::Typography::instance();
+        typo.reload(io, typo.getDpiScale());
+        DEBUG_LOGF("App: Font atlas rebuilt after user font-scale change (%.1fx)\n",
+                   ui::Layout::userFontScale());
+    }
+}
+
 void App::update()
 {
     PERF_SCOPE("Update.Total");
@@ -206,6 +254,9 @@ void App::update()
     if (worker_) {
         worker_->drainResults();
     }
+    if (fast_worker_) {
+        fast_worker_->drainResults();
+    }
 
     // Auto-lock check (only when connected + encrypted + unlocked)
     if (state_.connected && state_.isUnlocked()) {
@@ -218,23 +269,6 @@ void App::update()
         state_.rebuildAddressList();
     }
 
-    // Hot-reload unified UI schema
-    {
-        PERF_SCOPE("Update.SchemaHotReload");
-        ui::schema::UISchema::instance().pollForChanges();
-        ui::schema::UISchema::instance().applyIfDirty();
-    }
-
-    // Refresh balance layout config after schema reload
-    ui::RefreshBalanceLayoutConfig();
-
-    // If font sizes changed in the JSON, rebuild the font atlas
-    if (ui::schema::UISchema::instance().consumeFontsChanged()) {
-        auto& typo = ui::material::Typography::instance();
-        typo.reload(io, typo.getDpiScale());
-        DEBUG_LOGF("App: Font atlas rebuilt after hot-reload\n");
-    }
-
     // Update timers
     refresh_timer_ += io.DeltaTime;
     price_timer_ += io.DeltaTime;
@@ -775,7 +809,12 @@ void App::render()
             ui::RenderMarketTab(this);
             break;
         case ui::NavPage::Console:
-            console_tab_.render(embedded_daemon_.get(), rpc_.get(), worker_.get(), xmrig_manager_.get());
+            // Use fast-lane worker for console commands to avoid head-of-line
+            // blocking behind the consolidated refreshData() batch.
+            console_tab_.render(embedded_daemon_.get(),
+                fast_rpc_ ? fast_rpc_.get() : rpc_.get(),
+                fast_worker_ ? fast_worker_.get() : worker_.get(),
+                xmrig_manager_.get());
             break;
         case ui::NavPage::Settings:
             ui::RenderSettingsPage(this);
@@ -1723,6 +1762,9 @@ void App::beginShutdown()
     if (worker_) {
         worker_->requestStop();
     }
+    if (fast_worker_) {
+        fast_worker_->requestStop();
+    }
 
     // Stop xmrig pool miner before stopping the daemon
     if (xmrig_manager_ && xmrig_manager_->isRunning()) {
@@ -2260,6 +2302,9 @@ void App::shutdown()
         if (worker_) {
             worker_->stop();
         }
+        if (fast_worker_) {
+            fast_worker_->stop();
+        }
         if (settings_) {
             settings_->save();
         }
@@ -2269,6 +2314,9 @@ void App::shutdown()
         if (rpc_) {
             rpc_->disconnect();
         }
+        if (fast_rpc_) {
+            fast_rpc_->disconnect();
+        }
         return;
     }
     
@@ -2288,10 +2336,16 @@ void App::shutdown()
     if (worker_) {
         worker_->stop();
     }
+    if (fast_worker_) {
+        fast_worker_->stop();
+    }
     // Disconnect RPC after worker is fully stopped (safe — no curl in flight)
     if (rpc_) {
         rpc_->disconnect();
     }
+    if (fast_rpc_) {
+        fast_rpc_->disconnect();
+    }
 }
 
 // ===========================================================================
@@ -2310,7 +2364,8 @@ bool App::hasPinVault() const {
 }
 
 bool App::hasPendingRPCResults() const {
-    return worker_ && worker_->hasPendingResults();
+    return (worker_ && worker_->hasPendingResults())
+        || (fast_worker_ && fast_worker_->hasPendingResults());
 }
 void App::restartDaemon()
 {