Make the build work

scripts/install_tea.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+if [ -x ./tea ]; then
+  echo "tea already installed in current directory"; exit 0
+fi
+
+platform="${1:-linux-amd64}"
+src="${2:-release.json}"
+
+# obtain JSON: if src looks like a URL fetch it, otherwise treat as filename (or default file)
+if [[ "$src" =~ ^https?:// ]]; then
+  curl -fsSL "$src" -o /tmp/release.json.$$ 
+  json="/tmp/release.json.$$"
+  trap 'rm -f "$json"' EXIT
+elif [ -f "$src" ]; then
+  json="$src"
+else
+  echo "release JSON not found; provide a filename or URL as second arg" >&2
+  exit 1
+fi
+
+# read tag and find binary URL (exclude archives/checksums/sigs)
+tag=$(jq -r '.tag_name' "$json")
+url=$(jq -r --arg p "$platform" '.assets[]
+  | select(.name | test($p))
+  | select(.name | test("\\.(xz|zip|gz|tar|bz2|7z|sha256|sha256sum|sig|asc)$") | not)
+  | .browser_download_url' "$json" | head -n1)
+
+[ -n "$url" ] || { echo "binary not found for $platform" >&2; exit 1; }
+
+tmp="$(mktemp)"
+trap 'rm -f "$tmp"' EXIT
+
+curl -fsSL "$url" -o "$tmp"
+mv "$tmp" tea
+chmod +x tea
+echo "Downloaded tag ${tag}: $url -> ./tea"
+