feat(Sentiment): update sentiment service

FinlyticSentiment/Database/SentimentDbContext.cs

@@ -0,0 +1,29 @@
+using FinlyticSentiment.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace FinlyticSentiment.Database;
+
+/// <summary>
+/// EF Core DbContext for managing FinlyticSentiment settings in PostgreSQL.
+/// </summary>
+public class SentimentDbContext : DbContext
+{
+    public SentimentDbContext(DbContextOptions<SentimentDbContext> options) : base(options)
+    {
+    }
+
+    public DbSet<SentimentSettingsEntity> Settings => Set<SentimentSettingsEntity>();
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        modelBuilder.Entity<SentimentSettingsEntity>(entity =>
+        {
+            entity.ToTable("sentiment_settings");
+            entity.HasKey(e => e.Id);
+            entity.Property(e => e.GermanWebhookUrl).HasMaxLength(500);
+            entity.Property(e => e.EnglishWebhookUrl).HasMaxLength(500);
+        });
+    }
+}