chore: update gitignore for IDE support

- Add .zed/ to gitignore (Zed editor config)
- Add .opencode/ to gitignore (opencode tool data)
- Remove .zed/settings.json from version control
- Keeps repository clean of IDE-specific files

.gitignore

@@ -53,7 +53,9 @@ coverage.html
 
 # IDE
 .idea/
+.zed/
 .vscode/
+.opencode/
 *.iml
 .DS_Store
 Thumbs.db

.zed/settings.json

@@ -1,9 +0,0 @@
-{
-  "languages": {
-    "CSS": {
-      "language_servers": ["tailwindcss-language-server"],
-      "tab_size": 2,
-      "formatter": "auto",
-    },
-  },
-}