[Crash] Add lifecycle breadcrumbs for unattributable native crashes (#7813)

* [Crash] Add lifecycle breadcrumbs for unattributable native crashes

Co-authored-by: sentry[bot] <39604003+sentry[bot]@users.noreply.github.com>

* Restore the native split host button on non-macOS styles

The merged quick-host control composed a QPushButton and a separate autoRaise arrow QToolButton, which Fusion draws as two adjacent controls. Version one of the quick-host branch used a single QToolButton with MenuButtonPopup, which every style draws as one native split button.

Use that split button on every style that can draw one, and keep the plain primary + settings button pair as the native macOS fallback.

* Enable hover zoom and the hover panel by default

Both hover triggers now default to Hover, with the existing 400 ms zoom delay and 200 ms panel delay. The Off trigger remains available for users who want the old behavior.

---------

Co-authored-by: Lukas Brübach <44814898+BruebachL@users.noreply.github.com>
Co-authored-by: sentry[bot] <39604003+sentry[bot]@users.noreply.github.com>

cockatrice/src/client/crash/crash_reporter.cpp

@@ -614,3 +614,19 @@ QString CrashReporter::redactCockatriceUrls(const QString &line)
     redacted.append(line.mid(pos));
     return redacted;
 }
+
+void CrashReporter::addBreadcrumb(const char *category, const char *message)
+{
+#if COCKATRICE_WITH_CRASH_REPORTING
+    if (category == nullptr || message == nullptr) {
+        return;
+    }
+    sentry_value_t crumb = sentry_value_new_breadcrumb("default", message);
+    sentry_value_set_by_key(crumb, "category", sentry_value_new_string(category));
+    sentry_value_set_by_key(crumb, "level", sentry_value_new_string("info"));
+    sentry_add_breadcrumb(crumb);
+#else
+    Q_UNUSED(category);
+    Q_UNUSED(message);
+#endif
+}

cockatrice/src/client/crash/crash_reporter.h

@@ -167,6 +167,17 @@ public:
     static QString sanitizeLogLine(const QString &line);
     static QString redactCockatriceUrls(const QString &line);
 
+    /**
+     * @brief Record a fixed-text lifecycle breadcrumb on the active Sentry scope.
+     *
+     * Native crashes whose stack walk loses the in-app frames (e.g. a QMap lookup
+     * that dies inside Qt's string comparison) otherwise arrive with no hint of
+     * what the client was doing. Only pass compile-time string literals: no user
+     * names, card names, paths or URLs, so no personal data can leak through this
+     * channel. Thread-safe; a no-op in OFF builds or before init().
+     */
+    static void addBreadcrumb(const char *category, const char *message);
+
 private:
     bool ready = false;
     QString sentryDatabasePath;