fix: restore complete source code and fix launchers

- Copy complete source code packages from original CodeNomad project
- Add root package.json with npm workspace configuration
- Include electron-app, server, ui, tauri-app, and opencode-config packages
- Fix Launch-Windows.bat and Launch-Dev-Windows.bat to work with correct npm scripts
- Fix Launch-Unix.sh to work with correct npm scripts
- Launchers now correctly call npm run dev:electron which launches Electron app

packages/tauri-app/scripts/dev-prep.js

@@ -0,0 +1,46 @@
+#!/usr/bin/env node
+
+const fs = require("fs")
+const path = require("path")
+const { execSync } = require("child_process")
+
+const root = path.resolve(__dirname, "..")
+const workspaceRoot = path.resolve(root, "..", "..")
+const uiRoot = path.resolve(root, "..", "ui")
+const uiDist = path.resolve(uiRoot, "src", "renderer", "dist")
+const uiLoadingDest = path.resolve(root, "src-tauri", "resources", "ui-loading")
+
+function ensureUiBuild() {
+  const loadingHtml = path.join(uiDist, "loading.html")
+  if (fs.existsSync(loadingHtml)) {
+    return
+  }
+
+  console.log("[dev-prep] UI loader build missing; running workspace build…")
+  execSync("npm --workspace @codenomad/ui run build", {
+    cwd: workspaceRoot,
+    stdio: "inherit",
+  })
+
+  if (!fs.existsSync(loadingHtml)) {
+    throw new Error("[dev-prep] failed to produce loading.html after UI build")
+  }
+}
+
+function copyUiLoadingAssets() {
+  const loadingSource = path.join(uiDist, "loading.html")
+  const assetsSource = path.join(uiDist, "assets")
+
+  fs.rmSync(uiLoadingDest, { recursive: true, force: true })
+  fs.mkdirSync(uiLoadingDest, { recursive: true })
+
+  fs.copyFileSync(loadingSource, path.join(uiLoadingDest, "loading.html"))
+  if (fs.existsSync(assetsSource)) {
+    fs.cpSync(assetsSource, path.join(uiLoadingDest, "assets"), { recursive: true })
+  }
+
+  console.log(`[dev-prep] copied loader bundle from ${uiDist}`)
+}
+
+ensureUiBuild()
+copyUiLoadingAssets()