Product repository template

Layout, proplan.toml, README/CHANGELOG, placeholder product image, .gitignore, KiBot/release/docgen workflows and TEMPLATE.md. Source of truth: contrib/product-template in B4L/proplan (cargo test --test product_template checks it as Gitea 1.27 creates a repository from it).

.gitea/workflows/release.yml

@@ -0,0 +1,57 @@
+name: Release outputs
+
+# On a tag v* (a prototype stage): the KiBot outputs of every board, zipped per
+# board, attached to the tag's release (created when missing). The job token
+# must be allowed to write releases. Adapted from LVSolarBuck; runs for the
+# first time at the first tag.
+on:
+  push:
+    tags: ['v*']
+
+jobs:
+  release:
+    runs-on: kicad10_auto
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: KiBot outputs per board
+        run: |
+          mkdir -p dist
+          for pro in $(find hardware -mindepth 2 -maxdepth 2 -name '*.kicad_pro' | sort); do
+            dir=$(dirname "$pro"); board=$(basename "$dir")
+            (cd "$dir" && kibot -c "$GITHUB_WORKSPACE/kibot.yaml" -d "$GITHUB_WORKSPACE/out/$board") \
+              || echo "::warning::KiBot reported problems for $board"
+            python3 -c 'import shutil, sys; shutil.make_archive(sys.argv[1], "zip", sys.argv[2])' \
+              "dist/$board-${GITHUB_REF_NAME}" "out/$board"
+          done
+          ls -la dist
+
+      - name: Attach to the release
+        env:
+          TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          python3 - <<'EOF'
+          import json, os, pathlib, urllib.error, urllib.request, uuid
+          api = f"{os.environ['GITHUB_SERVER_URL']}/api/v1/repos/{os.environ['GITHUB_REPOSITORY']}"
+          tag = os.environ["GITHUB_REF_NAME"]
+          auth = {"Authorization": f"token {os.environ['TOKEN']}"}
+
+          def call(method, url, body=None, ctype="application/json"):
+              req = urllib.request.Request(url, data=body, method=method, headers={**auth, "Content-Type": ctype})
+              with urllib.request.urlopen(req) as r:
+                  return json.load(r)
+
+          try:
+              rel = call("GET", f"{api}/releases/tags/{tag}")
+          except urllib.error.HTTPError as e:
+              if e.code != 404:
+                  raise
+              rel = call("POST", f"{api}/releases", json.dumps({"tag_name": tag, "name": tag}).encode())
+          for f in sorted(pathlib.Path("dist").glob("*.zip")):
+              b = uuid.uuid4().hex
+              head = (f"--{b}\r\nContent-Disposition: form-data; name=\"attachment\"; filename=\"{f.name}\"\r\n"
+                      "Content-Type: application/zip\r\n\r\n").encode()
+              body = head + f.read_bytes() + f"\r\n--{b}--\r\n".encode()
+              call("POST", f"{api}/releases/{rel['id']}/assets?name={f.name}", body, f"multipart/form-data; boundary={b}")
+              print("attached", f.name)
+          EOF