Add gitea workflow

.gitea/workflows/build.yml

@@ -0,0 +1,24 @@
+name: Backend Build and Test
+on: [push]
+
+jobs:
+  build:
+    runs-on: standard-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '>=1.24'
+
+      - name: Build
+        run: |
+          cd backend
+          go build .
+
+      - name: Test
+        run: |
+          cd backend
+          go test . -v

.gitea/workflows/deploy.yml

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+name: Backend Deploy
+on:
+  push: [main]
+
+jobs:
+  build:
+    runs-on: standard-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Login
+        with:
+          package_rw: ${{ secrets.PACKAGE_RW }}
+        run: docker login gitea.seeseepuff.be -u seeseemelk -p ${{ secrets.PACKAGE_RW }}
+
+      - name: Build
+        run: |
+          cd backend
+          docker build -t gitea.seeseepuff.be/seeseemelk/wolproxy:$(git rev-parse --short HEAD) .
+
+      - name: Push
+        run: |
+          cd backend
+          docker push gitea.seeseepuff.be/seeseemelk/wolproxy:$(git rev-parse --short HEAD)

backend/Dockerfile

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+FROM golang:1.24.2-alpine3.21
+
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY migrations ./migrations/
+COPY *.go ./
+COPY *.gohtml ./
+RUN go build -o /allowance_planner
+
+EXPOSE 8080
+ENV GIN_MODE=release
+CMD ["/allowance_planner"]