feat: complete web application — FastAPI backend + Vue 3 SPA frontend

- Full FastAPI backend with JWT auth, file management, processing pipeline,
  memory CRUD, barcode mappings, config management, cloud sync
- Vue 3 + Element Plus frontend with dashboard, task history, HTTP logs,
  memory editor, barcode editor, config editor, sync page
- HTTP request logging middleware with SQLite persistence
- Task history tracking with progress and retry support
- File metadata recording for upload/download operations
- WebAuth section in config.ini for bcrypt password storage
- Bug fix: logs.py count query returns tuple not dict

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web/frontend/vite.config.ts

@@ -0,0 +1,23 @@
+import { defineConfig } from 'vite'
+import vue from '@vitejs/plugin-vue'
+
+export default defineConfig({
+  plugins: [vue()],
+  server: {
+    port: 5173,
+    proxy: {
+      '/api': {
+        target: 'http://localhost:8000',
+        changeOrigin: true,
+      },
+      '/ws': {
+        target: 'ws://localhost:8000',
+        ws: true,
+      },
+    },
+  },
+  build: {
+    outDir: '../backend/static',
+    emptyOutDir: true,
+  },
+})