Drop support for Intel macOS (#37215)

* Drop support for Intel macOS

* arch.sh

* scons

* platform.sh

* lil more

* mv tici

scripts/platform.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+#
+# Centralized platform and architecture detection for openpilot.
+# Source this script to get OPENPILOT_ARCH set to one of:
+#   larch64  - linux tici arm64
+#   aarch64  - linux pc arm64
+#   x86_64   - linux pc x64
+#   Darwin   - macOS arm64
+#
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m'
+
+OPENPILOT_ARCH=$(uname -m)
+
+# ── check OS and normalize arch ──────────────────────────────
+if [ -f /TICI ]; then
+  # TICI runs AGNOS — no OS validation needed
+  OPENPILOT_ARCH="larch64"
+
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+  if [[ "$OPENPILOT_ARCH" == "x86_64" ]]; then
+    echo -e " ↳ [${RED}✗${NC}] Intel-based Macs are not supported!"
+    echo "       openpilot requires an Apple Silicon Mac (M1 or newer)."
+    exit 1
+  fi
+  echo -e " ↳ [${GREEN}✔${NC}] macOS detected."
+  OPENPILOT_ARCH="Darwin"
+
+elif [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  if [ -f "/etc/os-release" ]; then
+    source /etc/os-release
+    case "$VERSION_CODENAME" in
+      "jammy" | "kinetic" | "noble" | "focal")
+        echo -e " ↳ [${GREEN}✔${NC}] Ubuntu $VERSION_CODENAME detected."
+        ;;
+      *)
+        echo -e " ↳ [${RED}✗${NC}] Incompatible Ubuntu version $VERSION_CODENAME detected!"
+        exit 1
+        ;;
+    esac
+  else
+    echo -e " ↳ [${RED}✗${NC}] No /etc/os-release on your system. Make sure you're running on Ubuntu, or similar!"
+    exit 1
+  fi
+
+else
+  echo -e " ↳ [${RED}✗${NC}] OS type $OSTYPE not supported!"
+  exit 1
+fi