feat: implement plant identification result card component and initialize backend server infrastructure

server/index.js

@@ -69,6 +69,14 @@ const SEMANTIC_SEARCH_COST = 2;
 const HEALTH_CHECK_COST = 2;
 const LOW_CONFIDENCE_REVIEW_THRESHOLD = 0.8;
 
+let catalogCache = null;
+
+const getCachedCatalogEntries = async (db) => {
+  if (catalogCache) return catalogCache;
+  catalogCache = await getPlants(db, { limit: 500 });
+  return catalogCache;
+};
+
 const DEFAULT_BOOTSTRAP_PLANTS = [
   {
     id: '1',
@@ -627,18 +635,16 @@ app.post('/v1/scan', async (request, response) => {
     let modelUsed = null;
     let modelFallbackCount = 0;
 
-    if (!isGuest(userId)) {
-      creditsCharged += await consumeCreditsWithIdempotency(
-        db,
-        userId,
-        chargeKey('scan-primary', userId, idempotencyKey),
-        SCAN_PRIMARY_COST,
-      );
-    }
+    const [creditResult, accountSnapshot, catalogEntries] = await Promise.all([
+      isGuest(userId)
+        ? Promise.resolve(0)
+        : consumeCreditsWithIdempotency(db, userId, chargeKey('scan-primary', userId, idempotencyKey), SCAN_PRIMARY_COST),
+      getAccountSnapshot(db, userId),
+      getCachedCatalogEntries(db),
+    ]);
+    creditsCharged += creditResult;
 
-    const accountSnapshot = await getAccountSnapshot(db, userId);
     const scanPlan = accountSnapshot.plan === 'pro' ? 'pro' : 'free';
-    const catalogEntries = await getPlants(db, { limit: 500 });
     let result = pickCatalogFallback(catalogEntries, imageUri, false, { silent: true });
     let usedOpenAi = false;