fix: Windows identity, async address creation, mining UI, and chart artifacts

Windows identity:
- Add VERSIONINFO resource (.rc) with ObsidianDragon file description
- Embed application manifest for DPI awareness and shell identity
- Patch libwinpthread/libpthread to remove competing VERSIONINFO
- Set AppUserModelID and HWND property store to override Task Manager cache
- Link patched pthread libs to eliminate "POSIX WinThreads" description

Address creation (+New button):
- Move z_getnewaddress/getnewaddress off UI thread to async worker
- Inject new address into state immediately for instant UI selection
- Trigger background refresh for balance updates

Mining tab:
- Add pool mining dropdown with saved URLs/workers and bookmarks
- Add solo mining log panel from daemon output with chart/log toggle
- Fix toggle button cursor (render after InputTextMultiline)
- Auto-restart miner on pool config change
- Migrate default pool URL to include stratum port

Transactions:
- Sort pending (0-conf) transactions to top of history
- Fall back to timereceived when timestamp is missing

Shutdown:
- Replace blocking sleep_for calls with 100ms polling loops
- Check shutting_down_ flag throughout daemon restart/bootstrap flows
- Reduce daemon stop timeout from 30s to 10s

Other:
- Fix market chart fill artifact (single concave polygon vs per-segment quads)
- Add bootstrap checksum verification state display
- Rename daemon client identifier to ObsidianDragon

src/config/settings.h

@@ -4,8 +4,10 @@
 
 #pragma once
 
+#include <algorithm>
 #include <string>
 #include <set>
+#include <vector>
 
 namespace dragonx {
 namespace config {
@@ -206,6 +208,31 @@ public:
     bool getPoolMode() const { return pool_mode_; }
     void setPoolMode(bool v) { pool_mode_ = v; }
 
+    // Saved pool URLs (user-managed favorites dropdown)
+    const std::vector<std::string>& getSavedPoolUrls() const { return saved_pool_urls_; }
+    void addSavedPoolUrl(const std::string& url) {
+        // Don't add duplicates
+        for (const auto& u : saved_pool_urls_) if (u == url) return;
+        saved_pool_urls_.push_back(url);
+    }
+    void removeSavedPoolUrl(const std::string& url) {
+        saved_pool_urls_.erase(
+            std::remove(saved_pool_urls_.begin(), saved_pool_urls_.end(), url),
+            saved_pool_urls_.end());
+    }
+
+    // Saved pool worker addresses (user-managed favorites dropdown)
+    const std::vector<std::string>& getSavedPoolWorkers() const { return saved_pool_workers_; }
+    void addSavedPoolWorker(const std::string& addr) {
+        for (const auto& a : saved_pool_workers_) if (a == addr) return;
+        saved_pool_workers_.push_back(addr);
+    }
+    void removeSavedPoolWorker(const std::string& addr) {
+        saved_pool_workers_.erase(
+            std::remove(saved_pool_workers_.begin(), saved_pool_workers_.end(), addr),
+            saved_pool_workers_.end());
+    }
+
     // Font scale (user accessibility setting, 1.0–1.5)
     float getFontScale() const { return font_scale_; }
     void setFontScale(float v) { font_scale_ = std::max(1.0f, std::min(1.5f, v)); }
@@ -255,13 +282,15 @@ private:
     std::string selected_pair_ = "DRGX/BTC";
 
     // Pool mining
-    std::string pool_url_       = "pool.dragonx.is";
+    std::string pool_url_       = "pool.dragonx.is:3433";
     std::string pool_algo_      = "rx/hush";
     std::string pool_worker_    = "x";
     int         pool_threads_   = 0;
     bool        pool_tls_       = false;
     bool        pool_hugepages_ = true;
     bool        pool_mode_      = false;   // false=solo, true=pool
+    std::vector<std::string> saved_pool_urls_; // user-saved pool URL favorites
+    std::vector<std::string> saved_pool_workers_; // user-saved worker address favorites
 
     // Font scale (user accessibility, 1.0–3.0; 1.0 = default)
     float       font_scale_     = 1.0f;