Initial commit: postcard v1

Phone photo -> composited postcard (canvas templates, stamp corner,
EXIF-aware date/location, self-hosted handwriting font) with a small
server for share links, day-context caption drafting off goonk's
day-summary API, and Nominatim reverse geocoding.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

server/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "postcard-server",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "description": "Small server for postcard: composited-image storage behind opaque links, plus day-context caption drafting",
+  "scripts": {
+    "start": "node --env-file-if-exists=../.env src/index.js",
+    "dev": "node --env-file-if-exists=../.env --watch src/index.js"
+  },
+  "dependencies": {
+    "better-sqlite3": "^11.3.0",
+    "express": "^4.19.2"
+  }
+}