Add Gitea quality gate workflow

.gitea/workflows/quality-gate.yml

@@ -0,0 +1,63 @@
+name: Quality Gate
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  quality-gate:
+    name: Quality Gate
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    env:
+      GODOT_VERSION: 4.7.2
+      GODOT_BIN: /tmp/godot-4.7.2/Godot_v4.7.2-stable_linux.x86_64
+      GODOT_SHA512: 9aa00f7a605200940bce3027a567b782f49bd8e940dd06ae9e987bd65aee1b1467edd56ed84fcdcbdd44354bf613bdb4e5d2913e925850368e150c59ed54c65
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Install system dependencies
+        shell: bash
+        run: |
+          set -euo pipefail
+          if command -v sudo >/dev/null 2>&1; then
+            sudo apt-get update
+            sudo apt-get install -y --no-install-recommends \
+              ca-certificates curl ripgrep unzip
+          else
+            apt-get update
+            apt-get install -y --no-install-recommends \
+              ca-certificates curl ripgrep unzip
+          fi
+
+      - name: Install Godot 4.7.2
+        shell: bash
+        run: |
+          set -euo pipefail
+          archive="Godot_v${GODOT_VERSION}-stable_linux.x86_64.zip"
+          release_url="https://github.com/godotengine/godot-builds/releases/download/${GODOT_VERSION}-stable"
+          download_directory="$(mktemp -d)"
+          install_directory="$(dirname "$GODOT_BIN")"
+
+          curl --fail --location --silent --show-error \
+            "$release_url/$archive" \
+            --output "$download_directory/$archive"
+          printf '%s  %s\n' \
+            "$GODOT_SHA512" "$download_directory/$archive" \
+            | sha512sum --check
+
+          mkdir -p "$install_directory"
+          unzip -q "$download_directory/$archive" -d "$install_directory"
+          chmod +x "$GODOT_BIN"
+          "$GODOT_BIN" --version
+
+      - name: Run the repository quality gate
+        shell: bash
+        run: bash scripts/quality_gate.sh