Initial commit: AI Photo Organizer (Electron + face-api)

Local-first photo organizer that auto-sorts images by face recognition
and EXIF capture date.

- Electron app with 3-process split: Main (Node) / UI Renderer (React) /
  hidden Inference Renderer (face-api + WebGL)
- Core pipeline: scan -> face match + EXIF -> path build -> atomic move/copy
- Move = copy -> verify -> delete; auto-rename on filename collision
- 1st-registered profile = move, others = copy; unmatched -> [미정]/YYYY/MM
- EXIF date with mtime fallback
- Vitest unit tests (pathBuilder / fileOps / concurrency) all green
- electron-builder config for Windows (nsis) + macOS (dmg)
- Docs: PRD / DECISIONS / ARCHITECTURE

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/renderer/styles/index.css

@@ -0,0 +1,19 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+:root {
+  color-scheme: light;
+}
+
+body {
+  margin: 0;
+  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
+  background: #f5f6fa;
+  color: #1f2330;
+}
+
+/* 파일 목록 가독성용 모노 폰트 */
+.mono {
+  font-family: 'Cascadia Code', 'Consolas', monospace;
+}