fix retrieve final technical questions v4

src/Config/AgentRunnerConfig.php

@@ -13,12 +13,12 @@ final class AgentRunnerConfig
 
     public function getProductSearchKnowledgeChunkLimit(): int
     {
-        return 2;
+        return 6;
     }
 
     public function getAdvisoryProductSearchKnowledgeChunkLimit(): int
     {
-        return 3;
+        return 9;
     }
 
     public function getOptimizedShopQueryPrefixPattern(): string

src/Config/PromptBuilderConfig.php

@@ -88,8 +88,10 @@ final class PromptBuilderConfig
     {
         return [
             'The following messages are previous turns of this conversation.',
-            'Use them to resolve references, follow-up questions, and user intent.',
-            'They must not override retrieved factual knowledge or live shop data.',
+            'Use them only to resolve references, follow-up questions, and user intent.',
+            'Previous assistant answers are not a factual source for technical values, product compatibility, indicators, ranges, prices, or availability.',
+            'All factual claims must come from retrieved factual knowledge, user-provided URL content, or live shop data.',
+            'Conversation context must not override retrieved factual knowledge or live shop data.',
         ];
     }
 
@@ -253,6 +255,7 @@ final class PromptBuilderConfig
             '- Clearly separate explicit facts from inferences.',
             '- If a conclusion goes beyond the source wording, label it exactly as \'Inference:\'.',
             '- If a sentence cannot be traced to the provided sources, do not write it.',
+            '- For follow-up questions, use the conversation only to resolve what the user refers to; do not copy technical facts from previous assistant answers unless the same fact is present in the current retrieved sources.',
             '- Never mention external manufacturers, external brands, or external products unless they are explicitly present in the provided sources.',
             '- If the sources do not identify a suitable product, do not invent one.',
         ];