Bug fixes

__tests__/server/scanConfidenceHonesty.test.js

@@ -0,0 +1,49 @@
+const { applyCatalogGrounding } = require('../../server/lib/scanGrounding');
+
+describe('scan confidence honesty', () => {
+  const catalogEntries = [
+    {
+      name: 'Rose',
+      botanicalName: 'Rosa chinensis',
+      description: 'Catalog rose entry.',
+      careInfo: { waterIntervalDays: 4, light: 'Full sun', temp: '15-25C' },
+    },
+  ];
+
+  const lowConfidenceAiResult = {
+    name: 'Rose',
+    botanicalName: 'Rosa chinensis',
+    confidence: 0.55,
+    description: 'Possibly a rose, image is ambiguous.',
+    careInfo: { waterIntervalDays: 5, light: 'Full sun', temp: '15-25C' },
+  };
+
+  it('does not inflate a low AI confidence when a catalog match is found', () => {
+    const { grounded, result } = applyCatalogGrounding(lowConfidenceAiResult, catalogEntries, 'en');
+
+    expect(grounded).toBe(true);
+    // Regression: this used to be forced up to at least 0.78, presenting an
+    // uncertain model guess as a confident identification.
+    expect(result.confidence).toBe(0.55);
+  });
+
+  it('keeps a high AI confidence unchanged', () => {
+    const { result } = applyCatalogGrounding(
+      { ...lowConfidenceAiResult, confidence: 0.9 },
+      catalogEntries,
+      'en',
+    );
+
+    expect(result.confidence).toBe(0.9);
+  });
+
+  it('clamps missing confidence to the neutral default without boosting it', () => {
+    const { result } = applyCatalogGrounding(
+      { ...lowConfidenceAiResult, confidence: undefined },
+      catalogEntries,
+      'en',
+    );
+
+    expect(result.confidence).toBe(0.6);
+  });
+});