Initial scaffold: Marti poetry workbench

Static-analysis-first poetry editor based on Borges architecture.
Three-column layout (sidebar | editor | analysis), AI opt-in and off by default.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

electron.vite.config.ts

@@ -0,0 +1,12 @@
+import { resolve } from 'path'
+import { defineConfig, externalizeDepsPlugin } from 'electron-vite'
+import react from '@vitejs/plugin-react'
+
+export default defineConfig({
+  main: { plugins: [externalizeDepsPlugin()] },
+  preload: { plugins: [externalizeDepsPlugin()] },
+  renderer: {
+    resolve: { alias: { '@renderer': resolve('src/renderer') } },
+    plugins: [react()]
+  }
+})