fix: discard Close errors explicitly so golangci-lint passes

internal/db/labels.go

@@ -65,7 +65,7 @@ func (db *DB) ListLabels(project string) ([]model.Label, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to list labels: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var labels []model.Label
 	for rows.Next() {
@@ -208,7 +208,7 @@ func (db *DB) GetItemLabels(itemID string) ([]model.Label, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to get item labels: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var labels []model.Label
 	for rows.Next() {
@@ -257,7 +257,7 @@ func (db *DB) PopulateItemLabels(items []model.Item) error {
 	if err != nil {
 		return fmt.Errorf("failed to query item labels: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	// Build a map of item ID -> label names
 	labelMap := make(map[string][]string)

internal/db/learnings.go

@@ -108,7 +108,7 @@ func (db *DB) GetLearning(id string) (*model.Learning, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to get concepts: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	for rows.Next() {
 		var concept string
@@ -153,7 +153,7 @@ func (db *DB) ListConcepts(project string, sortByRecent bool) ([]model.Concept,
 	if err != nil {
 		return nil, fmt.Errorf("failed to list concepts: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var concepts []model.Concept
 	for rows.Next() {
@@ -327,7 +327,7 @@ func (db *DB) GetLearningsByConcepts(project string, conceptNames []string, incl
 	if err != nil {
 		return nil, fmt.Errorf("failed to query learnings: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var learnings []model.Learning
 	for rows.Next() {
@@ -359,12 +359,12 @@ func (db *DB) GetLearningsByConcepts(project string, conceptNames []string, incl
 		for conceptRows.Next() {
 			var concept string
 			if err := conceptRows.Scan(&concept); err != nil {
-				conceptRows.Close()
+				_ = conceptRows.Close()
 				return nil, fmt.Errorf("failed to scan concept: %w", err)
 			}
 			l.Concepts = append(l.Concepts, concept)
 		}
-		conceptRows.Close()
+		_ = conceptRows.Close()
 
 		learnings = append(learnings, l)
 	}
@@ -394,7 +394,7 @@ func (db *DB) SearchLearnings(project string, query string, includeStale bool) (
 	if err != nil {
 		return nil, fmt.Errorf("failed to search learnings: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var learnings []model.Learning
 	for rows.Next() {
@@ -426,12 +426,12 @@ func (db *DB) SearchLearnings(project string, query string, includeStale bool) (
 		for conceptRows.Next() {
 			var concept string
 			if err := conceptRows.Scan(&concept); err != nil {
-				conceptRows.Close()
+				_ = conceptRows.Close()
 				return nil, fmt.Errorf("failed to scan concept: %w", err)
 			}
 			l.Concepts = append(l.Concepts, concept)
 		}
-		conceptRows.Close()
+		_ = conceptRows.Close()
 
 		learnings = append(learnings, l)
 	}
@@ -462,7 +462,7 @@ func (db *DB) ListConceptsWithStats(project string) ([]ConceptStats, error) {
 	if err != nil {
 		return nil, fmt.Errorf("failed to list concept stats: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var stats []ConceptStats
 	now := time.Now()
@@ -516,7 +516,7 @@ func (db *DB) GetAllLearnings(project string, includeStale bool) ([]model.Learni
 	if err != nil {
 		return nil, fmt.Errorf("failed to query learnings: %w", err)
 	}
-	defer rows.Close()
+	defer func() { _ = rows.Close() }()
 
 	var learnings []model.Learning
 	for rows.Next() {
@@ -548,12 +548,12 @@ func (db *DB) GetAllLearnings(project string, includeStale bool) ([]model.Learni
 		for conceptRows.Next() {
 			var concept string
 			if err := conceptRows.Scan(&concept); err != nil {
-				conceptRows.Close()
+				_ = conceptRows.Close()
 				return nil, fmt.Errorf("failed to scan concept: %w", err)
 			}
 			l.Concepts = append(l.Concepts, concept)
 		}
-		conceptRows.Close()
+		_ = conceptRows.Close()
 
 		learnings = append(learnings, l)
 	}

internal/db/learnings_test.go

@@ -762,8 +762,7 @@ func TestGetCurrentTaskID(t *testing.T) {
 	}
 	if taskID == nil {
 		t.Fatal("expected task ID, got nil")
-	}
-	if *taskID != task.ID {
+	} else if *taskID != task.ID {
 		t.Errorf("taskID = %q, want %q", *taskID, task.ID)
 	}
 }