Add Forgejo CI workflows

.forgejo/workflows/build.yml

@@ -0,0 +1,35 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    defaults:
+      run:
+        working-directory: src
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+
+      - name: Restore local tools
+        run: dotnet tool restore
+
+      - name: Restore dependencies
+        run: dotnet restore CsMic.sln
+
+      - name: Build
+        run: dotnet build CsMic.sln --no-restore

.forgejo/workflows/tests.yml

@@ -0,0 +1,35 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+
+    defaults:
+      run:
+        working-directory: src
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.0.x
+
+      - name: Restore local tools
+        run: dotnet tool restore
+
+      - name: Restore dependencies
+        run: dotnet restore CsMic.sln
+
+      - name: Run tests
+        run: dotnet test CsMic.sln --no-restore

README.md

@@ -2,6 +2,9 @@
 
 CS-MIC is a small, embeddable expression interpreter for .NET applications. It is designed for places where users need to enter flexible numeric input, while the host application needs a deterministic decimal result and a controlled extension surface.
 
+![Build](https://git.jordanwages.com/wagesj45/cs-mic/actions/workflows/build.yml/badge.svg?branch=main)
+![Tests](https://git.jordanwages.com/wagesj45/cs-mic/actions/workflows/tests.yml/badge.svg?branch=main)
+
 The 2.0 release separates the project into two NuGet packages:
 
 - `CSMic`: the core parser, interpreter, variable store, and custom function API.