no longer rely on json

apps/web/src/app/api/identify/identify.test.ts

@@ -19,7 +19,7 @@
 // @vitest-environment node
 
 import { describe, it, expect, beforeAll } from "vitest";
-import { getDiseaseById } from "@/lib/api/diseases";
+import { getDiseaseById } from "@/lib/api/diseases-db";
 
 const BASE_URL = process.env.TEST_BASE_URL || "http://localhost:3000";
 
@@ -172,7 +172,7 @@ describe("POST /api/identify", () => {
     const { data } = await callIdentify(imageId);
 
     for (const pred of data.predictions) {
-      const disease = getDiseaseById(pred.diseaseId);
+      const disease = await getDiseaseById(pred.diseaseId);
       expect(disease).toBeDefined();
       expect(disease!.id).toBe(pred.diseaseId);
       expect(disease!.name).toBe(pred.disease.name);
@@ -184,7 +184,7 @@ describe("POST /api/identify", () => {
 
     for (let i = 0; i < data.predictions.length - 1; i++) {
       expect(data.predictions[i].confidence.adjusted).toBeGreaterThanOrEqual(
-        data.predictions[i + 1].confidence.adjusted
+        data.predictions[i + 1].confidence.adjusted,
       );
     }
   }, 30000);
@@ -194,7 +194,7 @@ describe("POST /api/identify", () => {
 
     for (const pred of data.predictions) {
       for (const lookalikeId of pred.lookalikes) {
-        const lookalike = getDiseaseById(lookalikeId);
+        const lookalike = await getDiseaseById(lookalikeId);
         expect(lookalike).toBeDefined();
       }
     }

apps/web/src/app/api/identify/route.ts

@@ -19,7 +19,7 @@ import { runInference } from "@/lib/ml/inference";
 import { calibrateConfidence } from "@/lib/ml/confidence";
 import { getDiseaseIdForIndex } from "@/lib/ml/labels";
 import { getModel } from "@/lib/ml/model-loader";
-import { getDiseaseById, getPlantById } from "@/lib/api/diseases-db";
+import { getDiseaseById, getPlantById, getLookalikeDiseases } from "@/lib/api/diseases-db";
 import type { IdentifyRequest, IdentifyResponse, PredictionResult } from "@/lib/types";
 
 // ─── Constants ───────────────────────────────────────────────────────────────
@@ -121,7 +121,7 @@ async function preprocessImageBuffer(buffer: Buffer): Promise<Float32Array> {
  * For each prediction:
  * - Look up disease by ID in knowledge base
  * - Calibrate confidence score
- * - Include lookalike disease cross-references
+ * - Include lookalike disease cross-references (IDs and full objects)
  *
  * @param topPredictions - Top-K raw predictions from inference
  * @returns Enriched prediction results
@@ -149,8 +149,10 @@ async function enrichPredictions(
     // Calibrate confidence
     const confidence = calibrateConfidence(pred.probability);
 
-    // Get lookalike diseases
+    // Pre-resolve lookalike disease objects server-side so the client
+    // doesn't need sync access to JSON files
     const lookalikes = disease.lookalikeDiseaseIds;
+    const lookalikeDiseases = await getLookalikeDiseases(diseaseId);
 
     // Look up the plant for client convenience
     const plant = await getPlantById(disease.plantId).catch(() => null);
@@ -160,6 +162,7 @@ async function enrichPredictions(
       disease,
       confidence,
       lookalikes,
+      lookalikeDiseases,
       plant: plant ?? null,
     });
   }