Update .gitignore

.gitignore

@@ -1,7 +1,14 @@
-*.pyc
+text
-*.db
+
-*.m4a
+# Ignore UI-specific state and cache
-*.mp4
+.obsidian/workspace.json
-*.mp3
+.obsidian/workspace-mobile.json
-*.json
+.obsidian/graph.json
+.obsidian/cache/
+
+# System and OS files
+.trash/
+.DS_Store
+Thumbs.db
+
 notes/zettlekasten/.obsidian/*