feat: integrate Codecov for test coverage monitoring

Author: sebastian-ederer

.github/workflows/run-tests.yml

@@ -25,5 +25,12 @@ jobs:
       - name: Build project
         run: dotnet build --no-restore
 
-      - name: Run tests
-        run: dotnet test --no-build --verbosity normal
+      - name: Run tests with coverage
+        run: dotnet test --no-build --verbosity normal --collect:"XPlat Code Coverage" --results-directory ./coverage
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          directory: ./coverage
+          fail_ci_if_error: true

codecov.yml

@@ -0,0 +1,49 @@
+coverage:
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 2%
+    patch:
+      default:
+        target: auto
+        threshold: 2%
+
+component_management:
+  individual_components:
+    - component_id: eftdb
+      name: CmdScale.EntityFrameworkCore.TimescaleDB
+      paths:
+        - src/CmdScale.EntityFrameworkCore.TimescaleDB/**
+    - component_id: eftdb-design
+      name: CmdScale.EntityFrameworkCore.TimescaleDB.Design
+      paths:
+        - src/CmdScale.EntityFrameworkCore.TimescaleDB.Design/**
+
+flag_management:
+  individual_flags:
+    - name: eftdb
+      paths:
+        - src/CmdScale.EntityFrameworkCore.TimescaleDB/**
+      carryforward: true
+      statuses:
+        - type: project
+          target: 80%
+    - name: eftdb-design
+      paths:
+        - src/CmdScale.EntityFrameworkCore.TimescaleDB.Design/**
+      carryforward: true
+      statuses:
+        - type: project
+          target: 80%
+
+comment:
+  layout: "header, diff, flags, components, files"
+  behavior: default
+  require_changes: true
+
+ignore:
+  - "samples/**/*"
+  - "tests/**/*"
+  - "benchmarks/**/*"
+  - "**/*.Designer.cs"