Check EmbeddingStats query errors consistently

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Grivn

cmd/embed.go

@@ -36,7 +36,10 @@ Modes:
 
 		// Status mode
 		if embedStatus {
-			total, embedded, _ := db.EmbeddingStats()
+			total, embedded, err := db.EmbeddingStats()
+			if err != nil {
+				return fmt.Errorf("embedding stats: %w", err)
+			}
 			output := map[string]interface{}{
 				"total_insights":    total,
 				"embedded":          embedded,

internal/store/node.go

@@ -669,8 +669,12 @@ func (db *DB) ScanEmbeddings(fn func(id string, blob []byte) bool) error {
 
 // EmbeddingStats returns total insights and how many have embeddings.
 func (db *DB) EmbeddingStats() (total int, embedded int, err error) {
-	db.execer().QueryRow(`SELECT COUNT(*) FROM insights WHERE deleted_at IS NULL`).Scan(&total)
-	db.execer().QueryRow(`SELECT COUNT(*) FROM insights WHERE deleted_at IS NULL AND embedding IS NOT NULL`).Scan(&embedded)
+	if err := db.execer().QueryRow(`SELECT COUNT(*) FROM insights WHERE deleted_at IS NULL`).Scan(&total); err != nil {
+		return 0, 0, fmt.Errorf("count active insights: %w", err)
+	}
+	if err := db.execer().QueryRow(`SELECT COUNT(*) FROM insights WHERE deleted_at IS NULL AND embedding IS NOT NULL`).Scan(&embedded); err != nil {
+		return 0, 0, fmt.Errorf("count embedded insights: %w", err)
+	}
 	return total, embedded, nil
 }