feat: add emote_gfx UI for EchoEar (#1022)

* feat: add emote_gfx UI for EchoEar

* feat: delete local assets

main/boards/echoear/emote_display.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include "display/lcd_display.h"
+#include <memory>
+#include <functional>
+#include <esp_lcd_panel_io.h>
+#include <esp_lcd_panel_ops.h>
+#include "mmap_generate_emoji_normal.h"
+#include "gfx.h"
+
+namespace anim {
+
+// Helper function for setting up image descriptors
+void SetupImageDescriptor(mmap_assets_handle_t assets_handle, gfx_image_dsc_t* img_dsc, int asset_id);
+
+class EmoteEngine;
+
+using FlushIoReadyCallback = std::function<bool(esp_lcd_panel_io_handle_t, esp_lcd_panel_io_event_data_t*, void*)>;
+using FlushCallback = std::function<void(gfx_handle_t, int, int, int, int, const void*)>;
+
+class EmoteEngine {
+public:
+    EmoteEngine(esp_lcd_panel_handle_t panel, esp_lcd_panel_io_handle_t panel_io);
+    ~EmoteEngine();
+
+    void setEyes(int aaf, bool repeat, int fps);
+    void stopEyes();
+    
+    void Lock();
+    void Unlock();
+    
+    void SetIcon(int asset_id);
+    mmap_assets_handle_t GetAssetsHandle() const { return assets_handle_; }
+
+    // Callback functions (public to be accessible from static helper functions)
+    static bool OnFlushIoReady(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_io_event_data_t *edata, void *user_ctx);
+    static void OnFlush(gfx_handle_t handle, int x_start, int y_start, int x_end, int y_end, const void *color_data);
+
+private:
+    gfx_handle_t engine_handle_;
+    mmap_assets_handle_t assets_handle_;
+};
+
+class EmoteDisplay : public Display {
+public:
+    EmoteDisplay(esp_lcd_panel_handle_t panel, esp_lcd_panel_io_handle_t panel_io);
+    virtual ~EmoteDisplay();
+
+    virtual void SetEmotion(const char* emotion) override;
+    virtual void SetStatus(const char* status) override;
+    virtual void SetChatMessage(const char* role, const char* content) override;
+    
+    anim::EmoteEngine* GetEngine()
+    {
+        return engine_.get();
+    }
+
+private:
+    void InitializeEngine(esp_lcd_panel_handle_t panel, esp_lcd_panel_io_handle_t panel_io);
+    virtual bool Lock(int timeout_ms = 0) override;
+    virtual void Unlock() override;
+
+    std::unique_ptr<anim::EmoteEngine> engine_;
+};
+
+} // namespace anim