Expand ecash explorer capabilities

Add Fedimint discovery, dual SQLite/Postgres storage, richer review handling, and generated social imagery.

web/package.json

@@ -5,7 +5,9 @@
   "type": "module",
   "scripts": {
     "dev": "astro dev",
-    "build": "astro build",
+    "og": "node scripts/og/build-og.mjs",
+    "og:fixtures": "node scripts/og/build-og.mjs --fixtures",
+    "build": "node scripts/og/build-og.mjs && astro build",
     "preview": "astro preview",
     "typecheck": "astro check",
     "bones": "node --env-file-if-exists=../.env scripts/bones.mjs",
@@ -21,7 +23,9 @@
   },
   "devDependencies": {
     "@astrojs/check": "^0.9.4",
+    "@resvg/resvg-js": "^2.6.2",
     "boneyard-js": "^1.9.0",
+    "satori": "^0.33.0",
     "typescript": "^5.6.3"
   }
 }