feat(core): add shared DTOs, MqttTopics constants, DatabaseBootstrapper, and ManagedMqttClient extensions

FinlyticCore/Dtos/Sentiment/SectorSentimentSummaryDto.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using System.Text.Json.Serialization;
 
 namespace FinlyticCore.Dtos.Sentiment;
@@ -55,6 +56,18 @@ public record SectorCurrentSummary
     [JsonPropertyName("sentimentLabel")]
     public string SentimentLabel { get; init; } = "NEUTRAL";
 
+    /// <summary>
+    /// Gets or sets the total number of articles analyzed for this sector.
+    /// </summary>
+    [JsonPropertyName("totalArticlesAnalyzed")]
+    public int TotalArticlesAnalyzed { get; init; }
+
+    /// <summary>
+    /// Gets or sets the total number of distinct companies in this sector.
+    /// </summary>
+    [JsonPropertyName("totalCompanies")]
+    public int TotalCompanies { get; init; }
+
     /// <summary>
     /// Gets or sets the list of active asset ISINs influencing the sector.
     /// </summary>
@@ -69,7 +82,7 @@ public record SectorCurrentSummary
 }
 
 /// <summary>
-/// Data transfer object for a Sector sentiment summary file (stored in data/summaries/sectors/SectorName.json).
+/// Data transfer object for a Sector sentiment summary file.
 /// </summary>
 public record SectorSentimentSummaryDto
 {