Add mine-when-idle, default banlist, and console parsing improvements

Mine-when-idle:
- Auto-start/stop mining based on system idle time detection
- Platform::getSystemIdleSeconds() via XScreenSaver (Linux) / GetLastInputInfo (Win)
- Settings: mine_when_idle toggle + configurable delay (30s–10m)
- Settings page UI with checkbox and delay combo

Console tab:
- Shell-like argument parsing with quote and JSON bracket support
- Pass JSON objects/arrays directly as RPC params
- Fix selection indices when lines are evicted from buffer

Connection & status bar:
- Reduce RPC connect timeout to 1s for localhost fast-fail
- Fast retry timer on daemon startup and external daemon detection
- Show pool mining hashrate in status bar; sidebar badge reflects pool state

UI polish:
- Add logo to About card in settings; expose logo dimensions on App
- Header title offset-y support; adjust content-area margins
- Fix banned peers row cursor position (rawRowPosB.x)

Branding:
- Update copyright to "DragonX Developers" in RC and About section
- Replace logo/icon assets with updated versions

Misc:
- setup.sh: checkout dragonx branch before pulling
- Remove stale prebuilt-binaries/xmrig/.gitkeep

src/app.cpp

@@ -292,6 +292,9 @@ void App::update()
         checkAutoLock();
     }
 
+    // Mine-when-idle check (runs every frame, internally rate-limited by idle detection)
+    checkIdleMining();
+
     // P8: Dedup rebuildAddressList — only rebuild once per frame
     if (address_list_dirty_) {
         address_list_dirty_ = false;
@@ -715,13 +718,14 @@ void App::render()
         const float brandPadX = hdrF("pad-x", mainPadX / hdp);
         const float brandPadY = hdrF("pad-y", 8.0f);
         const float logoGap   = hdrF("logo-gap", 8.0f);
+        const float brandOffY = hdrF("offset-y", 0.0f);
         const float hdrOpacity = (hdrElem.opacity >= 0.0f) ? hdrElem.opacity : 0.7f;
 
         // Logo
         float logoSize = mainPadTop - brandPadY * 2.0f; // fit within header
         if (logoSize < 16.0f * hdp) logoSize = 16.0f * hdp;
         float logoX = winPos.x + brandPadX;
-        float logoY = winPos.y + brandPadY;
+        float logoY = winPos.y + brandPadY + brandOffY;
         if (logo_tex_ != 0) {
             float aspect = (logo_h_ > 0) ? (float)logo_w_ / (float)logo_h_ : 1.0f;
             float logoW = logoSize * aspect;
@@ -740,7 +744,7 @@ void App::render()
             ? hdrElem.size * hdp
             : titleFont->LegacySize;
         if (titleFont) {
-            float textY = winPos.y + (mainPadTop - titleFontSize) * 0.5f;
+            float textY = winPos.y + (mainPadTop - titleFontSize) * 0.5f + brandOffY;
             ImU32 textCol = ui::material::OnSurface();
             // Apply header text opacity
             int a = (int)((float)((textCol >> 24) & 0xFF) * hdrOpacity);
@@ -803,7 +807,7 @@ void App::render()
     // Build sidebar status for badges + footer
     ui::SidebarStatus sbStatus;
     sbStatus.peerCount   = static_cast<int>(state_.peers.size());
-    sbStatus.miningActive = state_.mining.generate;
+    sbStatus.miningActive = state_.mining.generate || state_.pool_mining.xmrig_running;
 
     // Load logo texture lazily on first frame (or after theme change)
     // Also reload when dark↔light mode changes so the correct variant shows
@@ -1370,8 +1374,9 @@ void App::renderStatusBar()
         }
     }
 
-    // Mining indicator (if mining)
-    if (state_.mining.generate) {
+    // Mining indicator (if mining — solo or pool)
+    const bool anyMining = state_.mining.generate || state_.pool_mining.xmrig_running;
+    if (anyMining) {
         ImGui::SameLine(0, sbSectionGap);
         ImGui::TextDisabled("|");
         ImGui::SameLine(0, sbSeparatorGap);
@@ -1379,8 +1384,11 @@ void App::renderStatusBar()
         ImGui::TextColored(ImVec4(0.3f, 0.8f, 0.3f, 1.0f), ICON_MD_CONSTRUCTION);
         ImGui::PopFont();
         ImGui::SameLine(0, sbIconTextGap);
+        double displayHashrate = state_.pool_mining.xmrig_running
+            ? state_.pool_mining.hashrate_10s
+            : state_.mining.localHashrate;
         ImGui::TextColored(ImVec4(0.3f, 0.8f, 0.3f, 1.0f), "%.1f H/s", 
-                          state_.mining.localHashrate);
+                          displayHashrate);
     }
 
     // Decrypt-import background task indicator