Consolidate CI and integration workflows

Merged integration tests into the main CI workflow by adding ClickHouse setup and test steps to ci.yml, and removed the separate integration.yml workflow. Updated the README to remove the integration test badge, reflecting the unified workflow.

Author: lupodevelop

.github/workflows/ci.yml

@@ -7,17 +7,29 @@ on:
     branches: [main]
 
 jobs:
-  unit-tests:
-    name: Unit Tests
+  test:
+    name: Build and Test
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Start ClickHouse
+        run: |
+          docker compose up -d clickhouse
+          echo "Waiting for ClickHouse to be ready..."
+          for i in $(seq 1 60); do
+            if curl -sSf http://localhost:8123/ >/dev/null 2>&1; then
+              echo "ClickHouse is ready"
+              break
+            fi
+            sleep 2
+          done
+
       - name: Setup Erlang/OTP and Gleam
         uses: erlef/setup-beam@v1
         with:
-          otp-version: "26.0"
+          otp-version: "27.0"
           gleam-version: "1.13.0"
 
       - name: Show Gleam version
@@ -31,9 +43,9 @@ jobs:
             ~/.gleam
             ./_gleam_deps
             ./build
-          key: ${{ runner.os }}-gleam-1.13.0-cache-v1-${{ hashFiles('**/gleam.toml') }}
+          key: ${{ runner.os }}-gleam-1.13.0-otp27-cache-v1-${{ hashFiles('**/gleam.toml') }}
           restore-keys: |
-            ${{ runner.os }}-gleam-1.13.0-cache-v1-
+            ${{ runner.os }}-gleam-1.13.0-otp27-cache-v1-
 
       - name: Install dependencies
         run: gleam deps download
@@ -44,5 +56,14 @@ jobs:
       - name: Build project
         run: gleam build
 
-      - name: Run unit tests
+      - name: Run all tests
+        env:
+          CLICKHOUSE_USER: test_user
+          CLICKHOUSE_PASSWORD: test_password
+          CLICKHOUSE_DB: test_db
+          CLICKHOUSE_URL: http://localhost:8123
         run: gleam test
+
+      - name: Cleanup ClickHouse
+        if: always()
+        run: docker compose down -v

.github/workflows/integration.yml

@@ -4,7 +4,7 @@
   <img src="assets/image.png" alt="Sparkling logo" width="240" />
 </p>
 
-[![CI](https://github.com/lupodevelop/sparkling/actions/workflows/ci.yml/badge.svg)](https://github.com/lupodevelop/sparkling/actions/workflows/ci.yml) [![Integration Tests](https://github.com/lupodevelop/sparkling/actions/workflows/integration.yml/badge.svg)](https://github.com/lupodevelop/sparkling/actions/workflows/integration.yml) [![License](https://img.shields.io/badge/license-Apache%202.0-yellow.svg)](LICENSE) [![Built with Gleam](https://img.shields.io/badge/Built%20with-Gleam-ffaff3)](https://gleam.run) [![Gleam Version](https://img.shields.io/badge/gleam-%3E%3D1.13.0-ffaff3)](https://gleam.run)
+[![CI](https://github.com/lupodevelop/sparkling/actions/workflows/ci.yml/badge.svg)](https://github.com/lupodevelop/sparkling/actions/workflows/ci.yml) [![License](https://img.shields.io/badge/license-Apache%202.0-yellow.svg)](LICENSE) [![Built with Gleam](https://img.shields.io/badge/Built%20with-Gleam-ffaff3)](https://gleam.run) [![Gleam Version](https://img.shields.io/badge/gleam-%3E%3D1.13.0-ffaff3)](https://gleam.run)
 
 **Sparkling** is a *lightweight*, **type-safe** data layer for **ClickHouse** written in Gleam. It provides a small, focused API for defining schemas, building queries, and encoding/decoding ClickHouse formats.