feat(TA): update technical analysis service

FinlyticTechnicalAnalysis/Entities/CachedAnalysisEntity.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace FinlyticTechnicalAnalysis.Entities;
+
+[Table("CachedAnalyses")]
+public class CachedAnalysisEntity
+{
+    [Key]
+    [MaxLength(20)]
+    public string Isin { get; set; } = string.Empty;
+
+    [MaxLength(20)]
+    public string Ticker { get; set; } = string.Empty;
+
+    [Column(TypeName = "jsonb")]
+    public string AnalysisJson { get; set; } = "{}";
+
+    public DateTime CalculatedAt { get; set; } = DateTime.UtcNow;
+}

FinlyticTechnicalAnalysis/Entities/MacroDataEntity.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace FinlyticTechnicalAnalysis.Entities;
+
+[Table("MacroData")]
+public class MacroDataEntity
+{
+    [Key]
+    [MaxLength(20)]
+    public string Symbol { get; set; } = string.Empty; // "^VIX", "^GSPC", "DX-Y.NY"
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal Value { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal PreviousClose { get; set; }
+
+    [MaxLength(50)]
+    public string TrendState { get; set; } = "Neutral";
+
+    public DateTime LastUpdatedAt { get; set; } = DateTime.UtcNow;
+}

FinlyticTechnicalAnalysis/Entities/MarketCandleEntity.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace FinlyticTechnicalAnalysis.Entities;
+
+[Table("MarketCandles")]
+public class MarketCandleEntity
+{
+    [Key]
+    public long Id { get; set; }
+
+    [Required]
+    [MaxLength(20)]
+    public string Symbol { get; set; } = string.Empty; // e.g. "US5398301094" or "AAPL" or "^VIX"
+
+    [Required]
+    [MaxLength(10)]
+    public string Interval { get; set; } = "1d"; // "1h", "1d"
+
+    [Required]
+    public DateTime Timestamp { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal Open { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal High { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal Low { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal Close { get; set; }
+
+    public long Volume { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal? Bid { get; set; }
+
+    [Column(TypeName = "decimal(18, 6)")]
+    public decimal? Ask { get; set; }
+}

FinlyticTechnicalAnalysis/Entities/TaSettingsEntity.cs

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+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace FinlyticTechnicalAnalysis.Entities;
+
+/// <summary>
+/// Entity representing global indicator and strategy settings for FinlyticTechnicalAnalysis.
+/// Persisted in PostgreSQL and updated dynamically via Admin Panel MQTT events.
+/// </summary>
+public class TaSettingsEntity
+{
+    [Key]
+    public Guid Id { get; set; }
+
+    public int EmaShortPeriod { get; set; } = 20;
+    public int SmaMediumPeriod { get; set; } = 50;
+    public int SmaLongPeriod { get; set; } = 200;
+    public double RsiOverboughtLimit { get; set; } = 70.0;
+    public double RsiOversoldLimit { get; set; } = 30.0;
+    public double SupertrendMultiplier { get; set; } = 3.0;
+    public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
+}