CI: make source fetch robust (git if present, else API tarball fallback)

.gitea/workflows/build-pack.yaml

@@ -9,8 +9,41 @@ jobs:
   build:
     runs-on: docker
     steps:
-      - name: Checkout
+      - name: Environment check
-        run: git clone --branch "${GITHUB_REF_NAME}" --depth 1 "https://x-access-token:${GITHUB_TOKEN}@git.mithraic.cloud/ad3laid3/FKRPG.git" "${GITHUB_WORKSPACE}"
+        run: |
+          echo "cwd: $(pwd)"
+          echo "GITHUB_WORKSPACE: ${GITHUB_WORKSPACE}"
+          python3 --version; git --version 2>/dev/null || echo "git: MISSING"
+          curl --version 2>/dev/null | head -1 || echo "curl: MISSING"
+          tar --version 2>/dev/null | head -1 || echo "tar: MISSING"
+
+      - name: Fetch sources
+        run: |
+          if command -v git >/dev/null 2>&1; then
+            echo "git present -> cloning"
+            git clone --branch "${GITHUB_REF_NAME}" --depth 1 "https://x-access-token:${GITHUB_TOKEN}@git.mithraic.cloud/ad3laid3/FKRPG.git" "${GITHUB_WORKSPACE}"
+          else
+            echo "git missing -> downloading archive via API"
+            python3 - <<'PY'
+            import urllib.request, tarfile, io, os, shutil
+            ws = os.environ.get('GITHUB_WORKSPACE') or os.getcwd()
+            sha = os.environ['GITHUB_SHA']
+            token = os.environ.get('GITHUB_TOKEN', '')
+            url = f"https://git.mithraic.cloud/api/v1/repos/ad3laid3/FKRPG/archive/{sha}.tar.gz"
+            req = urllib.request.Request(url, headers={"Authorization": f"token {token}"})
+            raw = urllib.request.urlopen(req, timeout=120).read()
+            os.makedirs('/tmp/fkrpg_src', exist_ok=True)
+            with tarfile.open(fileobj=io.BytesIO(raw)) as tf:
+                tf.extractall('/tmp/fkrpg_src')
+            src = os.path.join('/tmp/fkrpg_src', os.listdir('/tmp/fkrpg_src')[0])
+            for name in os.listdir(src):
+                dst = os.path.join(ws, name)
+                if os.path.exists(dst):
+                    shutil.rmtree(dst) if os.path.isdir(dst) else os.remove(dst)
+                shutil.move(os.path.join(src, name), dst)
+            print("Extracted sources into", ws)
+            PY
+          fi
 
       - name: Refresh index
         working-directory: client_pack