chore(ci): add .sonarcloud.properties for automatic analysis (#435)

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: nanotaboada

.sonarcloud.properties

@@ -0,0 +1,98 @@
+# =============================================================================
+# SonarCloud Automatic Analysis configuration
+# https://docs.sonarsource.com/sonarqube-cloud/advanced-setup/automatic-analysis/
+#
+# SonarCloud's automatic analysis (GitHub App, no CI workflow) reads THIS file,
+# not sonar-project.properties. Wildcard patterns are NOT supported here, so
+# all exclusion paths must be listed explicitly.
+#
+# sonar-project.properties is kept for documentation and as a fallback if
+# CI-based analysis is ever introduced.
+# =============================================================================
+
+sonar.sources=src/
+sonar.tests=test/
+sonar.sourceEncoding=UTF-8
+
+# =============================================================================
+# Global exclusions
+# =============================================================================
+
+sonar.exclusions=\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414191223_InitialCreate.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414191223_InitialCreate.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414195445_SeedStarting11.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414195445_SeedStarting11.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20251221220614_SeedSubstitutes.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20251221220614_SeedSubstitutes.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20260329000000_NormalizePlayerDataset.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20260329000000_NormalizePlayerDataset.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/PlayerDbContextModelSnapshot.cs
+
+# =============================================================================
+# Coverage exclusions
+# Test files and generated/infrastructure code should not count against
+# production code coverage metrics.
+# =============================================================================
+
+sonar.coverage.exclusions=\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerControllerTests.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerServiceTests.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerValidatorTests.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/DatabaseFakes.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/PlayerFakes.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/PlayerMocks.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/PlayerStubs.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Usings.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414191223_InitialCreate.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414191223_InitialCreate.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414195445_SeedStarting11.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414195445_SeedStarting11.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20251221220614_SeedSubstitutes.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20251221220614_SeedSubstitutes.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20260329000000_NormalizePlayerDataset.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20260329000000_NormalizePlayerDataset.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/PlayerDbContextModelSnapshot.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Data/PlayerDbContext.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Program.cs
+
+# =============================================================================
+# Duplicate code (CPD) exclusions
+# Automatic analysis does not support wildcard patterns, so each file is
+# listed explicitly.
+#
+# Migrations — EF Core migration files are intentionally repetitive
+#   (sequential InsertData/UpdateData/Sql calls).
+#
+# PlayerDbContext.cs — scaffolded EF Core infrastructure.
+#
+# PlayerData.cs — parallel WithId/without-Id method pairs mirror each other
+#   by design; duplication is structural, not accidental.
+#
+# PlayerRequestModelValidator.cs — the "Create" and "Update" rule sets share
+#   common rules by design; duplication is intentional.
+#
+# Test files — Fakes, Mocks, and Stubs are intentionally repetitive by design.
+# =============================================================================
+
+sonar.cpd.exclusions=\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414191223_InitialCreate.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414191223_InitialCreate.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414195445_SeedStarting11.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20250414195445_SeedStarting11.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20251221220614_SeedSubstitutes.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20251221220614_SeedSubstitutes.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20260329000000_NormalizePlayerDataset.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/20260329000000_NormalizePlayerDataset.Designer.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Migrations/PlayerDbContextModelSnapshot.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Data/PlayerDbContext.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Utilities/PlayerData.cs,\
+  src/Dotnet.Samples.AspNetCore.WebApi/Validators/PlayerRequestModelValidator.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerControllerTests.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerServiceTests.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Unit/PlayerValidatorTests.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/DatabaseFakes.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/PlayerFakes.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/PlayerMocks.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Utilities/PlayerStubs.cs,\
+  test/Dotnet.Samples.AspNetCore.WebApi.Tests/Usings.cs