Initial commit: Predictalytics solution

Clean Architecture .NET 8 solution (Domain/Application/Infrastructure/Api/Worker/WinFormsHost)
for analyzing Polymarket traders for copytrading/strategy-replication candidates.

Includes EF Core InitialBaseline migration and DB secrets removed from source/config
in preparation for version control.

src/Predictalytics.Api/Predictalytics.Api.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <RootNamespace>Predictalytics.Api</RootNamespace>
+    <!-- This project is used as a library by WinFormsHost; it does not run standalone -->
+    <OutputType>Library</OutputType>
+    <SatelliteResourceLanguages>en</SatelliteResourceLanguages>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.9.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Predictalytics.Application\Predictalytics.Application.csproj" />
+    <ProjectReference Include="..\Predictalytics.Infrastructure\Predictalytics.Infrastructure.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Update="wwwroot\**">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+
+</Project>