chore: bootstrap repository tooling

Add npm and Bun dependency metadata.

Configure TypeScript and shared editor defaults.

Ignore dependencies, build output, caches, logs, and local files.

.zed/settings.json

@@ -0,0 +1,25 @@
+{
+  "lsp": {
+    "tailwindcss-language-server": {
+      "settings": {
+        "classFunctions": [
+          "cva",
+          "cx"
+        ],
+        "experimental": {
+          "classRegex": [
+            "[cls|className]\\s\\:\\=\\s\"([^\"]*)"
+          ]
+        }
+      }
+    }
+  },
+  "languages": {
+    "CSS": {
+      "language_servers": [
+        "tailwindcss-intellisense-css",
+        "!vscode-css-language-server"
+      ]
+    }
+  }
+}