Initial build: personal annual letter + podcast year-end email generator

- Monthly journal: 6 prompts per month, saved to localStorage
- Year-end reflections: 6 closing prompts compiled into a letter
- Podcast module: 9 prompts → ready-to-send listener email with preview tab
- Home dashboard: month grid, progress bar, year-end task checklist
- Letter view: formatted narrative with Copy and Download
- Dockerfile + nginx.conf for containerized deployment

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

nginx.conf

@@ -0,0 +1,14 @@
+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    gzip on;
+    gzip_types text/plain text/css application/javascript application/json image/svg+xml;
+    gzip_min_length 1024;
+}