chore: refactor packages/app files (#13236)

Co-authored-by: opencode-agent[bot] <opencode-agent[bot]@users.noreply.github.com>
Co-authored-by: Frank <frank@anoma.ly>

packages/app/src/env.d.ts

@@ -1,3 +1,5 @@
+import "solid-js"
+
 interface ImportMetaEnv {
   readonly VITE_OPENCODE_SERVER_HOST: string
   readonly VITE_OPENCODE_SERVER_PORT: string
@@ -6,3 +8,11 @@ interface ImportMetaEnv {
 interface ImportMeta {
   readonly env: ImportMetaEnv
 }
+
+declare module "solid-js" {
+  namespace JSX {
+    interface Directives {
+      sortable: true
+    }
+  }
+}