Implement verified weekly archives and SQLite inventory reporting

scripts/archive-old-weeks.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+repo_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
+if [[ -n "${PYTHON:-}" ]]; then
+  python_bin="$PYTHON"
+elif [[ -n "${VIRTUAL_ENV:-}" && -x "$VIRTUAL_ENV/bin/python" ]]; then
+  python_bin="$VIRTUAL_ENV/bin/python"
+elif [[ -x "$repo_dir/.venv/bin/python" ]]; then
+  python_bin="$repo_dir/.venv/bin/python"
+else
+  python_bin=python3
+fi
+if ! command -v "$python_bin" >/dev/null 2>&1; then
+  printf 'Python not found. Install Python 3.12+ and dependencies; see README.md.\n' >&2
+  exit 127
+fi
+# Allow invocation outside the repository without an editable package install.
+export PYTHONPATH="$repo_dir/src${PYTHONPATH:+:$PYTHONPATH}"
+# Parsed as literal settings by Python; never sourced/executed as shell code.
+export ARCHIVE_ENV_FILE="${ARCHIVE_ENV_FILE:-$repo_dir/.env}"
+# argparse requires --mode, validates --max-weeks, and rejects unknown options.
+exec "$python_bin" -m btcdata_archive run "$@"