Improve desktop runtime UX by surfacing inference readiness in gateway status and hardening WSL link opening.

This also stabilizes markdown code/table block spacing and adds root-install guards so desktop dev runs use a healthy workspace dependency tree.

apps/desktop/scripts/assert-root-install.cjs

@@ -0,0 +1,13 @@
+"use strict"
+
+const fs = require("fs")
+const path = require("path")
+
+const root = path.resolve(__dirname, "..", "..", "..")
+
+try {
+  fs.accessSync(path.join(root, "node_modules", "vite", "package.json"))
+} catch {
+  console.error(`Run from repo root: cd ${root} && npm ci`)
+  process.exit(1)
+}