chore: bootstrap inkling project (Task 1)

Adds package.json, tsconfig.json, tsconfig.node.json,
electron.vite.config.ts, vitest.config.ts, .gitignore, and
package-lock.json. Verified Node 24.15.0 + npm 11.12.1 via Volta.
better-sqlite3 12.9.0 native build succeeded against VS 2022 +
Python 3.12.

Plan v0.4 had two install pin issues; adjusted live and logged
in plan Task 1 Step 2:
- electron-vite@2.3.0 + vite@6.0.3 ERESOLVE (peer ^4||^5).
  Promoted build-tool chain: electron-vite 5.0.0, vite 7.3.2,
  @vitejs/plugin-react 5.1.4 (vite@7 is the compatible overlap;
  vitest@4.1.5 also accepts vite@7).
- @types/uuid@11.0.0 deprecated stub (uuid@11 ships own types);
  removed from devDependencies.

Other deps installed at the planned exact pins. Step 8 sanity:
TypeScript 6.0.3, Vitest 4.1.5, Electron 41.3.0 (npm ls).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

vitest.config.ts

@@ -0,0 +1,18 @@
+import { defineConfig } from 'vitest/config';
+import { resolve } from 'node:path';
+
+export default defineConfig({
+  test: {
+    environment: 'node',
+    globals: false,
+    include: ['tests/unit/**/*.test.ts'],
+    exclude: ['tests/integration/**', 'tests/e2e/**'],
+    coverage: { reporter: ['text', 'html'] }
+  },
+  resolve: {
+    alias: {
+      '@shared': resolve(__dirname, 'src/shared'),
+      '@main': resolve(__dirname, 'src/main')
+    }
+  }
+});