feat: change icon and display, add time

scripts/build_default_assets.py

@@ -715,9 +715,20 @@ def get_emoji_collection_path(default_emoji_collection, xiaozhi_fonts_path, proj
     - PNG emoji collections from xiaozhi-fonts (e.g., emojis_32, twemoji_64)
     - GIF emoji collections from xiaozhi-fonts (e.g., noto-emoji_128, noto-emoji_64)
     - Otto GIF emoji collection (otto-gif)
+    - Custom project-relative or absolute directory paths
     """
     if not default_emoji_collection:
         return None
+
+    candidate_paths = []
+    if os.path.isabs(default_emoji_collection):
+        candidate_paths.append(default_emoji_collection)
+    elif project_root:
+        candidate_paths.append(os.path.join(project_root, default_emoji_collection))
+
+    for candidate_path in candidate_paths:
+        if os.path.isdir(candidate_path):
+            return candidate_path
     
     # Special handling for otto-gif collection
     if default_emoji_collection == 'otto-gif':