public int getHistoryAssistantSummaryMaxChars() {
        return 800;
    }

    // --- Concurrency control ---

    /**
     * Gets the maximum number of concurrent requests to the LLM provider.
     * Default is 5. Override or configure via rag.llm.{provider}.max.concurrent.requests.
     *
     * @return the maximum concurrent requests
     */
    protected int getMaxConcurrentRequests() {

labels.userAgent=User Agent
labels.username=Username
labels.value=Value
labels.versionNo=Version No
labels.cronExpression=Schedule
labels.dayForCleanup=Delete documents older than specified days
labels.crawlingThreadCount=Concurrent Crawling Count
labels.boost=Boost
labels.crawlingConfigName=Name
labels.crawlingConfigPath=Path to Crawl
labels.processType=Process Type
labels.parameters=Parameters
labels.designFile=File to Upload

import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;

import org.codelibs.curl.CurlRequest;
import org.codelibs.curl.CurlResponse;
import org.codelibs.curl.io.ContentCache;

# Charset field for GSA index queries.
query.gsa.index.field.charset=charset
# Content type field for GSA index queries.
query.gsa.index.field.content_type.=content_type
# Maximum concurrent group results for collapse queries.
query.collapse.max.concurrent.group.results=4
# Inner hits name for collapse queries.
query.collapse.inner.hits.name=similar_docs
# Inner hits size for collapse queries.
query.collapse.inner.hits.size=0

        // Extract history snapshot before adding current user message to avoid duplication
        final List<LlmMessage> history = extractHistory(session);
        // Add user message immediately for session integrity under concurrent access
        final ChatMessage userChatMessage = ChatMessage.userMessage(userMessage);
        session.addMessage(userChatMessage);

        try {
            // Intent detection

labels.userAgent=User Agent
labels.username=Username
labels.value=Value
labels.versionNo=Version No
labels.cronExpression=Schedule
labels.dayForCleanup=Delete documents older than specified days
labels.crawlingThreadCount=Concurrent Crawling Count
labels.boost=Boost
labels.crawlingConfigName=Name
labels.crawlingConfigPath=Path to Crawl
labels.processType=Process Type
labels.parameters=Parameters
labels.designFile=File to Upload

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.util.Date;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import javax.naming.directory.Attribute;
import javax.naming.directory.BasicAttribute;