ci: add workflow to run automated tests

.github/workflows/ci.yml

@@ -0,0 +1,49 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    env:
+      SWAG_VERSION: v1.16.4
+      GO_VERSION: 1.23.4
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "${{ env.GO_VERSION }}"
+
+      - name: Cache Go modules
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/go-build
+            /go/pkg/mod
+          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ runner.os }}-go-
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Install swag
+        run: go install github.com/swaggo/swag/cmd/swag@${{ env.SWAG_VERSION }}
+
+      - name: Build
+        run: make build
+
+      - name: Run tests
+        run: make test

README.md

@@ -1,5 +1,7 @@
 # Portfolio Valuation Tool
 
+[![CI](https://github.com/rodionlim/portfolio-manager-go/actions/workflows/ci.yml/badge.svg)](https://github.com/rodionlim/portfolio-manager-go/actions/workflows/ci.yml)
+
 An application to value equities, fx, commodities, cash, bonds (corps / gov), and cryptocurrencies in your personal portfolio.
 
 ## Features