Reapply "Strengthen search breadth and modal fitting"

This reverts commit 3f824c4bdf.

backend/services/cse.go

@@ -94,9 +94,9 @@ func (s *SearchService) SearchMediaWithDeadline(queries []string, enabledPlatfor
 	results := make([]SearchResult, 0, 90)
 	var lastErr error
 
-	baseQueries := limitQueries(queries, 8)
+	baseQueries := limitQueries(queries, 10)
 	shuffleStrings(baseQueries)
-	primaryQueries := baseQueries[:minInt(len(baseQueries), 3)]
+	primaryQueries := baseQueries[:minInt(len(baseQueries), 4)]
 	runSearchPass := func(bases []string, onlyMissing bool) {
 		for _, base := range bases {
 			if !deadline.IsZero() && time.Now().After(deadline) {
@@ -1432,9 +1432,9 @@ func limitCollectorQueries(collector string, queries []string, onlyMissing bool)
 	limit := 2
 	switch collector {
 	case "Envato", "Artgrid":
-		limit = 4
+		limit = 5
 	case "Google Video":
-		limit = 3
+		limit = 4
 	}
 	if onlyMissing {
 		limit--

backend/services/cse_test.go

@@ -159,13 +159,13 @@ func TestLimitCollectorQueriesUsesSmallerBudgetForMissingPass(t *testing.T) {
 	queries := []string{"a", "b", "c", "d"}
 
 	got := limitCollectorQueries("Artgrid", queries, true)
-	if len(got) != 3 {
-		t.Fatalf("expected 3 queries for missing-pass Artgrid collector, got %d", len(got))
+	if len(got) != 4 {
+		t.Fatalf("expected 4 queries for missing-pass Artgrid collector, got %d", len(got))
 	}
 
 	got = limitCollectorQueries("Google Video", queries, false)
-	if len(got) != 3 {
-		t.Fatalf("expected 3 queries for Google Video collector, got %d", len(got))
+	if len(got) != 4 {
+		t.Fatalf("expected 4 queries for Google Video collector, got %d", len(got))
 	}
 }
 

backend/services/gemini_test.go

@@ -123,8 +123,8 @@ func TestRemainingGeminiCapacityShrinksWithReviewedItems(t *testing.T) {
 		{Link: "https://a.example"},
 		{Link: "https://b.example"},
 	}
-	if got := RemainingGeminiCapacity(reviewed); got != 14 {
-		t.Fatalf("expected 14 remaining slots, got %d", got)
+	if got := RemainingGeminiCapacity(reviewed); got != 22 {
+		t.Fatalf("expected 22 remaining slots, got %d", got)
 	}
 }
 

backend/services/ranker.go

@@ -97,7 +97,7 @@ func RankSearchResults(query string, results []SearchResult) []SearchResult {
 }
 
 func GeminiCandidateLimit(total int) int {
-	return min(total, 16)
+	return min(total, 24)
 }
 
 func EvaluateAllCandidatesWithGemini(service *GeminiService, query string, ranked []SearchResult) ([]AIRecommendation, GeminiBatchStats, error) {
@@ -291,7 +291,7 @@ func ReviewedRecommendationLinks(items []AIRecommendation) map[string]bool {
 }
 
 func RemainingGeminiCapacity(reviewed []AIRecommendation) int {
-	remaining := GeminiCandidateLimit(16) - len(ReviewedRecommendationLinks(reviewed))
+	remaining := GeminiCandidateLimit(24) - len(ReviewedRecommendationLinks(reviewed))
 	if remaining < 0 {
 		return 0
 	}

backend/services/search_collectors.go

@@ -15,7 +15,7 @@ type searchCollector interface {
 type envatoCollector struct{}
 
 func (envatoCollector) Name() string    { return "Envato" }
-func (envatoCollector) MaxResults() int { return 12 }
+func (envatoCollector) MaxResults() int { return 16 }
 func (envatoCollector) Enabled(enabledPlatforms map[string]bool) bool {
 	return len(enabledPlatforms) == 0 || enabledPlatforms["envato"]
 }
@@ -31,7 +31,7 @@ func (envatoCollector) Enrich(searcher *SearchService, result SearchResult) Sear
 type artgridCollector struct{}
 
 func (artgridCollector) Name() string    { return "Artgrid" }
-func (artgridCollector) MaxResults() int { return 12 }
+func (artgridCollector) MaxResults() int { return 16 }
 func (artgridCollector) Enabled(enabledPlatforms map[string]bool) bool {
 	return len(enabledPlatforms) == 0 || enabledPlatforms["artgrid"]
 }
@@ -47,7 +47,7 @@ func (artgridCollector) Enrich(searcher *SearchService, result SearchResult) Sea
 type googleVideoCollector struct{}
 
 func (googleVideoCollector) Name() string    { return "Google Video" }
-func (googleVideoCollector) MaxResults() int { return 8 }
+func (googleVideoCollector) MaxResults() int { return 12 }
 func (googleVideoCollector) Enabled(enabledPlatforms map[string]bool) bool {
 	return len(enabledPlatforms) == 0 || enabledPlatforms["google video"]
 }