update db usage and init db files

BlueLaminate/BlueLaminate.EFCore/Data/SkinTrackerDbContext.cs

@@ -28,8 +28,13 @@ public class SkinTrackerDbContext : DbContext
     public DbSet<TradeItem> TradeItems => Set<TradeItem>();
     public DbSet<PriceHistory> PriceHistories => Set<PriceHistory>();
 
+    /// <summary>The PostgreSQL schema that owns all of this context's tables.</summary>
+    public const string Schema = "skintracker";
+
     protected override void OnModelCreating(ModelBuilder modelBuilder)
     {
+        modelBuilder.HasDefaultSchema(Schema);
+
         modelBuilder.ApplyConfiguration(new SkinConfiguration());
         modelBuilder.ApplyConfiguration(new SkinConditionConfiguration());
         modelBuilder.ApplyConfiguration(new SteamUserConfiguration());

BlueLaminate/BlueLaminate.EFCore/Data/SkinTrackerDbContextFactory.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Design;
+using Microsoft.Extensions.Configuration;
 
 namespace BlueLaminate.EFCore.Data;
 
@@ -7,15 +8,25 @@ public class SkinTrackerDbContextFactory : IDesignTimeDbContextFactory<SkinTrack
 {
     public SkinTrackerDbContext CreateDbContext(string[] args)
     {
-        var connectionString =
-            Environment.GetEnvironmentVariable("SKINTRACKER_CONNECTION")
-            ?? "Host=localhost;Port=5432;Database=skintracker;Username=postgres;Password=postgres";
+        var connectionString = BuildConfiguration().GetConnectionString("SkinTracker")
+            ?? throw new InvalidOperationException(
+                "Connection string 'SkinTracker' is not configured. "
+                + "Set it via user secrets (dev) or the ConnectionStrings__SkinTracker environment variable (prod).");
 
         var options = new DbContextOptionsBuilder<SkinTrackerDbContext>()
-            .UseNpgsql(connectionString)
+            .UseNpgsql(connectionString, npgsql =>
+                npgsql.MigrationsHistoryTable("__EFMigrationsHistory", SkinTrackerDbContext.Schema))
             .UseSnakeCaseNamingConvention()
             .Options;
 
         return new SkinTrackerDbContext(options);
     }
+
+    public static IConfiguration BuildConfiguration() =>
+        new ConfigurationBuilder()
+            .SetBasePath(AppContext.BaseDirectory)
+            .AddJsonFile("appsettings.json", optional: true)
+            .AddUserSecrets<SkinTrackerDbContextFactory>(optional: true)
+            .AddEnvironmentVariables()
+            .Build();
 }