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.cpp

@@ -140,12 +140,24 @@ bool Settings::load(const std::string& path)
         if (j.contains("selected_exchange")) selected_exchange_ = j["selected_exchange"].get<std::string>();
         if (j.contains("selected_pair")) selected_pair_ = j["selected_pair"].get<std::string>();
         if (j.contains("pool_url"))        pool_url_       = j["pool_url"].get<std::string>();
+        // Migrate old default pool URL that was missing the stratum port
+        if (pool_url_ == "pool.dragonx.is") pool_url_ = "pool.dragonx.is:3433";
         if (j.contains("pool_algo"))       pool_algo_      = j["pool_algo"].get<std::string>();
         if (j.contains("pool_worker"))     pool_worker_    = j["pool_worker"].get<std::string>();
         if (j.contains("pool_threads"))    pool_threads_   = j["pool_threads"].get<int>();
         if (j.contains("pool_tls"))        pool_tls_       = j["pool_tls"].get<bool>();
         if (j.contains("pool_hugepages"))  pool_hugepages_ = j["pool_hugepages"].get<bool>();
         if (j.contains("pool_mode"))       pool_mode_      = j["pool_mode"].get<bool>();
+        if (j.contains("saved_pool_urls") && j["saved_pool_urls"].is_array()) {
+            saved_pool_urls_.clear();
+            for (const auto& u : j["saved_pool_urls"])
+                if (u.is_string()) saved_pool_urls_.push_back(u.get<std::string>());
+        }
+        if (j.contains("saved_pool_workers") && j["saved_pool_workers"].is_array()) {
+            saved_pool_workers_.clear();
+            for (const auto& w : j["saved_pool_workers"])
+                if (w.is_string()) saved_pool_workers_.push_back(w.get<std::string>());
+        }
         if (j.contains("font_scale") && j["font_scale"].is_number())
             font_scale_ = std::max(1.0f, std::min(1.5f, j["font_scale"].get<float>()));
         if (j.contains("window_width") && j["window_width"].is_number_integer())
@@ -219,6 +231,12 @@ bool Settings::save(const std::string& path)
     j["pool_tls"]       = pool_tls_;
     j["pool_hugepages"] = pool_hugepages_;
     j["pool_mode"]      = pool_mode_;
+    j["saved_pool_urls"] = json::array();
+    for (const auto& u : saved_pool_urls_)
+        j["saved_pool_urls"].push_back(u);
+    j["saved_pool_workers"] = json::array();
+    for (const auto& w : saved_pool_workers_)
+        j["saved_pool_workers"].push_back(w);
     j["font_scale"]     = font_scale_;
     if (window_width_ > 0 && window_height_ > 0) {
         j["window_width"]  = window_width_;

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;