ci: run tests and build on K3s server to avoid runner memory limits

Strategy change:
- Tests run directly on K3s server via SSH (has dotnet installed)
- Docker build/import also on K3s server
- Runner only handles SSH connection and smoke tests (lightweight)
- Smoke tests run from runner (just curl commands)
- Auto-rollback if smoke tests fail

This avoids OOMKilled issues in the runner container.

.gitea/workflows/deploy.yaml

@@ -12,25 +12,9 @@ env:
   DOMAIN: "academia.ingeniumcodex.com"
 
 jobs:
-  # Job 1: Build y Test (obligatorio)
-  test:
+  # Job único: Build, Test y Deploy en K3s (más eficiente en recursos)
+  build-test-deploy:
     runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Restore & Build
-        run: dotnet build --configuration Release --verbosity minimal
-
-      - name: Run Tests
-        run: |
-          dotnet test tests/Domain.Tests --no-build -c Release --verbosity minimal
-          dotnet test tests/Application.Tests --no-build -c Release --verbosity minimal
-
-  # Job 2: Deploy (siempre después de tests)
-  deploy:
-    runs-on: ubuntu-latest
-    needs: test
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -42,22 +26,29 @@ jobs:
           chmod 600 ~/.ssh/id_rsa
           ssh-keyscan -H ${{ env.K3S_HOST }} >> ~/.ssh/known_hosts 2>/dev/null
 
-      - name: Deploy to K3s
+      - name: Build, Test & Deploy
         run: |
           ssh ${{ env.K3S_USER }}@${{ env.K3S_HOST }} << 'ENDSSH'
             set -e
             cd ~/academia
 
             # Pull latest changes
+            echo "=== Pulling latest code ==="
             git fetch origin main
             git reset --hard origin/main
 
-            # Build images
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S docker build \
+            # Run tests (en el servidor que tiene más recursos)
+            echo "=== Running tests ==="
+            dotnet test tests/Domain.Tests --verbosity minimal || exit 1
+            dotnet test tests/Application.Tests --verbosity minimal || exit 1
+
+            # Build Docker images
+            echo "=== Building images ==="
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S docker build \
               -f deploy/docker/Dockerfile.api -t student-api:latest . &
             PID_API=$!
 
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S docker build \
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S docker build \
               -f deploy/docker/Dockerfile.frontend -t student-frontend:latest . &
             PID_FE=$!
 
@@ -65,27 +56,30 @@ jobs:
             wait $PID_FE || exit 1
 
             # Import to k3s
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S sh -c \
+            echo "=== Importing to K3s ==="
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S sh -c \
               'docker save student-api:latest | k3s ctr images import -'
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S sh -c \
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S sh -c \
               'docker save student-frontend:latest | k3s ctr images import -'
 
             # Deploy
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S kubectl apply -k deploy/k3s/
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S kubectl rollout restart \
+            echo "=== Deploying ==="
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S kubectl apply -k deploy/k3s/
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S kubectl rollout restart \
               deployment/student-api deployment/student-frontend -n academia
 
             # Wait for rollout
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S kubectl rollout status \
+            echo "=== Waiting for rollout ==="
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S kubectl rollout status \
               deployment/student-api -n academia --timeout=180s
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S kubectl rollout status \
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S kubectl rollout status \
               deployment/student-frontend -n academia --timeout=60s
           ENDSSH
 
-  # Job 3: Smoke Tests en Producción
+  # Smoke Tests en Producción
   smoke-tests:
     runs-on: ubuntu-latest
-    needs: deploy
+    needs: build-test-deploy
     steps:
       - name: Wait for services
         run: sleep 15
@@ -93,35 +87,25 @@ jobs:
       - name: Health Check API
         run: |
           response=$(curl -sf https://${{ env.DOMAIN }}/health)
-          echo "Health response: $response"
+          echo "Health: $response"
           echo "$response" | grep -q '"status":"Healthy"' || exit 1
 
-      - name: Health Check Frontend
-        run: |
-          curl -sf https://${{ env.DOMAIN }}/ | grep -q 'Sistema de Estudiantes' || exit 1
+      - name: Frontend Check
+        run: curl -sf https://${{ env.DOMAIN }}/ | grep -q 'Sistema de Estudiantes' || exit 1
 
-      - name: GraphQL Endpoint Check
+      - name: GraphQL Check
         run: |
           response=$(curl -sf -X POST https://${{ env.DOMAIN }}/graphql \
             -H "Content-Type: application/json" \
-            -d '{"query":"{ __typename }"}')
-          echo "GraphQL response: $response"
-          echo "$response" | grep -q '"data"' || exit 1
-
-      - name: Database Connectivity Check
-        run: |
-          response=$(curl -sf https://${{ env.DOMAIN }}/health)
-          echo "$response" | grep -q '"name":"database","status":"Healthy"' || exit 1
-
-      - name: Subjects Query Test
-        run: |
-          response=$(curl -sf -X POST https://${{ env.DOMAIN }}/graphql \
-            -H "Content-Type: application/json" \
-            -d '{"query":"{ subjects { id name credits } }"}')
-          echo "Subjects response: $response"
+            -d '{"query":"{ subjects { id name } }"}')
+          echo "GraphQL: $response"
           echo "$response" | grep -q '"subjects"' || exit 1
 
-  # Job 4: Rollback automático si smoke tests fallan
+      - name: Database Check
+        run: |
+          curl -sf https://${{ env.DOMAIN }}/health | grep -q '"name":"database","status":"Healthy"' || exit 1
+
+  # Rollback si smoke tests fallan
   rollback:
     runs-on: ubuntu-latest
     needs: smoke-tests
@@ -134,9 +118,9 @@ jobs:
           chmod 600 ~/.ssh/id_rsa
           ssh-keyscan -H ${{ env.K3S_HOST }} >> ~/.ssh/known_hosts 2>/dev/null
 
-      - name: Rollback Deployments
+      - name: Rollback
         run: |
           ssh ${{ env.K3S_USER }}@${{ env.K3S_HOST }} << 'ENDSSH'
-            echo "${{ secrets.K3S_SUDO_PASS }}" | sudo -S kubectl rollout undo \
+            echo '${{ secrets.K3S_SUDO_PASS }}' | sudo -S kubectl rollout undo \
               deployment/student-api deployment/student-frontend -n academia
           ENDSSH