Introducing the pirouette FPV frame for GFPV

Signed-off-by: Arnaud Morin <arnaud.gfpv@mailops.fr>

build.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: Apache-2.0
+# @author Arnaud Morin <arnaud.gfpv@mailops.fr>
+#
+# Build every export from the model into build/.
+#
+#   ./build.sh              STEP + STL + DXF + the assembly PNGs
+#   ./build.sh --no-png     skip the renders, which are most of the runtime
+#
+set -euo pipefail
+cd "$(dirname "$0")"
+
+if ! command -v uv >/dev/null 2>&1; then
+    echo "build.sh: uv not found." >&2
+    echo "  install it: curl -LsSf https://astral.sh/uv/install.sh | sh" >&2
+    exit 1
+fi
+
+# Creates .venv from pyproject.toml the first time; a no-op on every run after
+# that. --inexact so it installs what the model needs without pruning anything
+# else you keep in there, an ipython or a cq-editor say.
+uv sync --inexact
+
+# --no-sync below: uv run would otherwise re-sync per invocation, and it has no
+# --inexact of its own, so it would undo the line above and prune those extras.
+run() { uv run --no-sync python "$@"; }
+
+# Each part asserts it came out as one solid at import time, so a part that
+# broke stops the build here rather than quietly exporting a bad STL.
+for part in plate arm motor_base spar camera_mount standoff lollipop; do
+    run "$part.py"
+done
+
+run frame.py "$@"