fix(bot): scale llm purchase confidence values

apps/bot/src/openai-parser-fallback.ts

@@ -19,6 +19,11 @@ function asBigInt(value: string): bigint | null {
   return parsed > 0n ? parsed : null
 }
 
+function normalizeConfidence(value: number): number {
+  const scaled = value >= 0 && value <= 1 ? value * 100 : value
+  return Math.max(0, Math.min(100, Math.round(scaled)))
+}
+
 export function createOpenAiParserFallback(
   apiKey: string | undefined,
   model: string
@@ -116,7 +121,7 @@ export function createOpenAiParserFallback(
       amountMinor,
       currency: parsedJson.currency,
       itemDescription: parsedJson.itemDescription,
-      confidence: Math.max(0, Math.min(100, Math.round(parsedJson.confidence))),
+      confidence: normalizeConfidence(parsedJson.confidence),
       parserMode: 'llm',
       needsReview: parsedJson.needsReview
     }

apps/bot/src/openai-purchase-interpreter.test.ts

@@ -95,4 +95,48 @@ describe('createOpenAiPurchaseInterpreter', () => {
       globalThis.fetch = originalFetch
     }
   })
+
+  test('scales 0-1 confidence values into 0-100', async () => {
+    const interpreter = createOpenAiPurchaseInterpreter('test-key', 'gpt-5-mini')
+    expect(interpreter).toBeDefined()
+
+    const originalFetch = globalThis.fetch
+    globalThis.fetch = (async () =>
+      successfulResponse({
+        output: [
+          {
+            content: [
+              {
+                text: JSON.stringify({
+                  decision: 'purchase',
+                  amountMinor: '5000',
+                  currency: 'GEL',
+                  itemDescription: 'шампунь',
+                  confidence: 0.92,
+                  clarificationQuestion: null
+                })
+              }
+            ]
+          }
+        ]
+      })) as unknown as typeof fetch
+
+    try {
+      const result = await interpreter!('Купил шампунь на 50 лари', {
+        defaultCurrency: 'GEL'
+      })
+
+      expect(result).toEqual<PurchaseInterpretation>({
+        decision: 'purchase',
+        amountMinor: 5000n,
+        currency: 'GEL',
+        itemDescription: 'шампунь',
+        confidence: 92,
+        parserMode: 'llm',
+        clarificationQuestion: null
+      })
+    } finally {
+      globalThis.fetch = originalFetch
+    }
+  })
 })

apps/bot/src/openai-purchase-interpreter.ts

@@ -46,6 +46,11 @@ function normalizeCurrency(value: string | null): 'GEL' | 'USD' | null {
   return value === 'GEL' || value === 'USD' ? value : null
 }
 
+function normalizeConfidence(value: number): number {
+  const scaled = value >= 0 && value <= 1 ? value * 100 : value
+  return Math.max(0, Math.min(100, Math.round(scaled)))
+}
+
 export function createOpenAiPurchaseInterpreter(
   apiKey: string | undefined,
   model: string
@@ -170,7 +175,7 @@ export function createOpenAiPurchaseInterpreter(
       amountMinor: asOptionalBigInt(parsedJson.amountMinor),
       currency: normalizeCurrency(parsedJson.currency),
       itemDescription: normalizeOptionalText(parsedJson.itemDescription),
-      confidence: Math.max(0, Math.min(100, Math.round(parsedJson.confidence))),
+      confidence: normalizeConfidence(parsedJson.confidence),
       parserMode: 'llm',
       clarificationQuestion
     }