Update 4

internal/config/config.go

@@ -48,6 +48,8 @@ type Config struct {
 	ArticleMinConfidence        float64
 	ArticleMinTextChars         int
 	ArticleMinAnswerChars       int
+	ArticleMaxResearchQueries   int
+	ArticleResearchResults      int
 	TopK                        int
 	MaxContextChars             int
 	AutoEnrich                  bool
@@ -130,6 +132,8 @@ func Load() (Config, error) {
 		ArticleMinConfidence:        number("BRAIN_ARTICLE_MIN_CONFIDENCE", 0.74),
 		ArticleMinTextChars:         integer("BRAIN_ARTICLE_MIN_TEXT_CHARS", 180),
 		ArticleMinAnswerChars:       integer("BRAIN_ARTICLE_MIN_ANSWER_CHARS", 420),
+		ArticleMaxResearchQueries:   integer("BRAIN_ARTICLE_MAX_RESEARCH_QUERIES", 3),
+		ArticleResearchResults:      integer("BRAIN_ARTICLE_RESEARCH_RESULTS", 4),
 		TopK:                        integer("BRAIN_TOP_K", 8),
 		MaxContextChars:             integer("BRAIN_MAX_CONTEXT_CHARS", 16000),
 		AutoEnrich:                  boolean("BRAIN_AUTO_ENRICH", true),
@@ -203,6 +207,12 @@ func Load() (Config, error) {
 	if cfg.ArticleMinAnswerChars < 100 || cfg.ArticleMinAnswerChars > 50000 {
 		return Config{}, fmt.Errorf("BRAIN_ARTICLE_MIN_ANSWER_CHARS must be between 100 and 50000")
 	}
+	if cfg.ArticleMaxResearchQueries < 1 || cfg.ArticleMaxResearchQueries > 10 {
+		return Config{}, fmt.Errorf("BRAIN_ARTICLE_MAX_RESEARCH_QUERIES must be between 1 and 10")
+	}
+	if cfg.ArticleResearchResults < 1 || cfg.ArticleResearchResults > 10 {
+		return Config{}, fmt.Errorf("BRAIN_ARTICLE_RESEARCH_RESULTS must be between 1 and 10")
+	}
 	if cfg.ResearchEnabled && cfg.SearXNGURL == "" {
 		return Config{}, fmt.Errorf("BRAIN_RESEARCH_ENABLED requires SEARXNG_URL")
 	}