Initial commit: bip-sda project scaffold

Electron + TypeScript project initialized with electron-vite,
electron-builder, ESLint, and Prettier configuration.

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

tsconfig.json

@@ -0,0 +1,4 @@
+{
+  "files": [],
+  "references": [{ "path": "./tsconfig.node.json" }, { "path": "./tsconfig.web.json" }]
+}