chatgui: fix all animations showing the same TGS (rlottie model cache key collision)

lottie_animation_from_data uses 'key' as a cache key for parsed models.
All LottieIcon instances were created with key="", causing rlottie's
model cache to return the first loaded animation for all subsequent
requests. Only visible on Windows where rlottie cache is enabled by
default.

Fix: pass unique animPath as key to each LottieIcon constructor.
Also replaced fprintf(stderr) diag with GUI_INFO logging via
AnimTimer::logRegisteredIcons() in debug_ui.h.

tools/chatgui/src/animtimer.cpp

@@ -1,6 +1,6 @@
 #include "animtimer.h"
 #include "lottieicon.h"
-#include "../../lib/debug_config.h"
+#include "debug_ui.h"
 
 AnimTimer::AnimTimer() {
     m_timer.setInterval(33);
@@ -49,3 +49,13 @@ void AnimTimer::onTimer() {
         icon->advanceFrame();
     emit ticked();
 }
+
+void AnimTimer::logRegisteredIcons() const {
+    for (auto it = m_icons.constBegin(); it != m_icons.constEnd(); ++it) {
+        LottieIcon *icon = it.value();
+        GUI_INFO("LottieIcon: path=%s frames=%d size=%dx%d tgsSize=%d valid=%d",
+                 qPrintable(it.key()), icon->frameCount(),
+                 icon->originalSize().width(), icon->originalSize().height(),
+                 icon->tgsSize(), (int)icon->isValid());
+    }
+}

tools/chatgui/src/animtimer.h

@@ -14,6 +14,7 @@ public:
     void registerIcon(const QString &key, LottieIcon *icon);
     void unregisterIcon(const QString &key);
     LottieIcon *icon(const QString &key) const;
+    void logRegisteredIcons() const;
 
     void activate();
     void deactivate();

tools/chatgui/src/emojipanel.cpp

@@ -3,7 +3,6 @@
 #include "emojitabbar.h"
 #include "animtimer.h"
 #include "lottieicon.h"
-#include <cstdio>
 #include <QPushButton>
 #include <QScrollArea>
 #include <QTabWidget>
@@ -35,8 +34,6 @@ public:
         if (data.type == EmojiType::Animation) {
             setMouseTracking(true);
             m_icon = AnimTimer::instance()->icon(data.animPath);
-            fprintf(stderr, "[DIAG EmojiBtn] btn=%p path=%s m_icon=%p\n",
-                    (void*)this, qPrintable(data.animPath), (void*)m_icon);
             m_timer.setInterval(33);
             connect(&m_timer, &QTimer::timeout, this, [this]() {
                 if (m_icon && m_icon->isValid()) {

tools/chatgui/src/lottieicon.cpp

@@ -2,7 +2,6 @@
 #include <rlottie_capi.h>
 #include <zlib.h>
 #include <cstring>
-#include <cstdio>
 
 static QByteArray unpackGzip(const QByteArray &data) {
     if (data.isEmpty()) return {};
@@ -34,23 +33,19 @@ static QByteArray unpackGzip(const QByteArray &data) {
     return result;
 }
 
-LottieIcon::LottieIcon(const QByteArray &tgsData) {
+LottieIcon::LottieIcon(const QByteArray &tgsData, const QString &key) {
+    m_tgsSize = (int)tgsData.size();
     QByteArray json = unpackGzip(tgsData);
-    fprintf(stderr, "[DIAG LottieIcon] this=%p tgsSize=%d jsonSize=%d jsonEmpty=%d\n",
-            (void*)this, (int)tgsData.size(), (int)json.size(), (int)json.isEmpty());
     if (json.isEmpty()) return;
 
     m_jsonData = json;
-    m_anim = lottie_animation_from_data(m_jsonData.constData(), "", "");
-    fprintf(stderr, "[DIAG LottieIcon] this=%p m_anim=%p jsonHead=%.60s\n",
-            (void*)this, (void*)m_anim, m_jsonData.constData());
+    QByteArray keyUtf8 = key.toUtf8();
+    m_anim = lottie_animation_from_data(m_jsonData.constData(), keyUtf8.constData(), "");
     if (!m_anim) return;
 
     lottie_animation_get_size(m_anim, &m_w, &m_h);
     m_totalFrames = (int)lottie_animation_get_totalframe(m_anim);
     m_frameRate = lottie_animation_get_framerate(m_anim);
-    fprintf(stderr, "[DIAG LottieIcon] this=%p frames=%d size=%zux%zu\n",
-            (void*)this, m_totalFrames, m_w, m_h);
     if (m_totalFrames <= 0) m_totalFrames = 1;
     m_valid = true;
 }

tools/chatgui/src/lottieicon.h

@@ -7,7 +7,7 @@
 
 class LottieIcon {
 public:
-    explicit LottieIcon(const QByteArray &tgsData);
+    explicit LottieIcon(const QByteArray &tgsData, const QString &key);
     ~LottieIcon();
 
     bool isValid() const { return m_valid; }
@@ -15,6 +15,8 @@ public:
     int frameCount() const { return m_totalFrames; }
     double frameRate() const { return m_frameRate; }
     int currentFrame() const { return m_currentFrame; }
+    int tgsSize() const { return m_tgsSize; }
+    void setTgsSize(int sz) { m_tgsSize = sz; }
 
     QImage renderFrame(int frameNum, QSize targetSize) const;
     void advanceFrame() { m_currentFrame = (m_currentFrame + 1) % m_totalFrames; }
@@ -24,6 +26,7 @@ private:
     struct Lottie_Animation_S *m_anim = nullptr;
     int m_currentFrame = 0;
     int m_totalFrames = 0;
+    int m_tgsSize = 0;
     double m_frameRate = 60.0;
     size_t m_w = 0, m_h = 0;
     QByteArray m_jsonData;

tools/chatgui/src/mainwindow.cpp

@@ -143,6 +143,8 @@ void MainWindow::setupNode() {
 
     if (!m_node->start(m_cfgPath))
         qWarning("Failed to start UtunNode");
+    else
+        AnimTimer::instance()->logRegisteredIcons();
 }
 
 void MainWindow::setupMessaging() {

tools/chatgui/src/messagelist.cpp

@@ -16,7 +16,6 @@
 #include <QScrollBar>
 #include <QApplication>
 #include <QDebug>
-#include <cstdio>
 #include <vector>
 #include <memory>
 
@@ -106,17 +105,11 @@ MessageList::MessageList(DbManager* db, QWidget *parent)
                     QFile f(e.animPath);
                     if (f.open(QIODevice::ReadOnly)) {
                         QByteArray raw = f.readAll();
-                        auto icon = std::make_unique<LottieIcon>(raw);
-                        fprintf(stderr, "[DIAG register] path=%s fileOpen=1 rawSize=%d iconPtr=%p iconValid=%d\n",
-                                qPrintable(e.animPath), (int)raw.size(),
-                                (void*)icon.get(), (int)icon->isValid());
+                        auto icon = std::make_unique<LottieIcon>(raw, e.animPath);
                         if (icon->isValid()) {
                             AnimTimer::instance()->registerIcon(e.animPath, icon.get());
                             s_icons.push_back(std::move(icon));
                         }
-                    } else {
-                        fprintf(stderr, "[DIAG register] path=%s fileOpen=0\n",
-                                qPrintable(e.animPath));
                     }
                 }
             }