Improve WorkerThread shutdown diagnostics

- Replace catch(...) with specific std::system_error and std::exception
  handlers that log error code and message via LOG_ERROR
- Move queue-depth LOG_WARNs outside the joined-only block so the
  detach path also reports pending work at shutdown

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: bmehta001

lib/pal/WorkerThread.cpp

@@ -6,6 +6,8 @@
 #include "pal/WorkerThread.hpp"
 #include "pal/PAL.hpp"
 
+#include <system_error>
+
 #if defined(MATSDK_PAL_CPP11) || defined(MATSDK_PAL_WIN32)
 
 /* Maximum scheduler interval for SDK is 1 hour required for clamping in case of monotonic clock drift */
@@ -65,19 +67,27 @@ namespace PAL_NS_BEGIN {
                     m_hThread.detach();
                 }
             }
-            catch (...) {};
+            catch (const std::system_error& e) {
+                LOG_ERROR("Thread join/detach failed: [%d] %s", e.code().value(), e.what());
+            }
+            catch (const std::exception& e) {
+                LOG_ERROR("Thread join/detach failed: %s", e.what());
+            }
+
+            // Log pending work in both paths so operators can see if
+            // shutdown is dropping tasks.
+            if (!m_queue.empty()) {
+                LOG_WARN("Shutdown with %zu queued task(s) pending", m_queue.size());
+            }
+            if (!m_timerQueue.empty()) {
+                LOG_WARN("Shutdown with %zu timer(s) pending", m_timerQueue.size());
+            }
 
             // Clean up any tasks remaining in the queues after shutdown.
             // Only safe after join() — the thread has fully exited.
             // After detach(), the thread still needs the shutdown item
             // and may still be accessing the queues.
             if (joined) {
-                if (!m_queue.empty()) {
-                    LOG_WARN("Shutdown with %zu queued task(s) pending", m_queue.size());
-                }
-                if (!m_timerQueue.empty()) {
-                    LOG_WARN("Shutdown with %zu timer(s) pending", m_timerQueue.size());
-                }
                 for (auto task : m_queue) { delete task; }
                 m_queue.clear();
                 for (auto task : m_timerQueue) { delete task; }