feat: display app version in UI footer

- Add version package with build-time variables
- Inject version via ldflags in Dockerfile using git describe
- Show version in footer on every page
- Log version and commit on server startup

.gitea/workflows/deploy.yml

@@ -48,6 +48,8 @@ jobs:
     runs-on: games
     steps:
       - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Need full history for git describe
 
       - name: Sync to deploy directory
         run: |
@@ -59,4 +61,8 @@ jobs:
           mkdir -p $DEPLOY_DIR/data
 
       - name: Rebuild and restart
-        run: cd $DEPLOY_DIR && docker compose up -d --build --remove-orphans
+        run: |
+          cd $DEPLOY_DIR
+          VERSION=$(git describe --tags --always)
+          COMMIT=$(git rev-parse --short HEAD)
+          VERSION=$VERSION COMMIT=$COMMIT docker compose up -d --build --remove-orphans

Dockerfile

@@ -1,6 +1,9 @@
 FROM docker.io/golang:1.25.4-alpine AS build
 
-RUN apk add --no-cache upx git
+ARG VERSION=dev
+ARG COMMIT=unknown
+
+RUN apk add --no-cache upx
 
 WORKDIR /src
 COPY go.mod go.sum ./
@@ -11,8 +14,6 @@ RUN go tool templ generate
 RUN go tool gotailwind -i assets/css/input.css -o assets/css/output.css --minify
 RUN --mount=type=cache,target=/root/.cache/go-build \
     MODULE=$(head -1 go.mod | awk '{print $2}') && \
-    VERSION=$(git describe --tags --always) && \
-    COMMIT=$(git rev-parse --short HEAD) && \
     CGO_ENABLED=0 go build -ldflags="-s -X $MODULE/version.Version=$VERSION -X $MODULE/version.Commit=$COMMIT" -o /bin/games .
 RUN upx -9 -k /bin/games
 

docker-compose.yml

@@ -1,6 +1,10 @@
 services:
   games:
-    build: .
+    build:
+      context: .
+      args:
+        VERSION: ${VERSION:-dev}
+        COMMIT: ${COMMIT:-unknown}
     container_name: games
     restart: unless-stopped
     ports: