Release v1.8.8

• The free plan window is now per market, server side: a free account reads, in full, every market open in the last 7 days, and a market that ended before them answers HistoryWindowError (403). HistoryWindowError carries window_start and the raw details (data_end, upgrade_url).
• A series backtest (streaming or data_dir, tick or alpha) skips the markets that ended before the window under result.skipped with the reason "outside the free 7 day window" instead of stopping at the first one; after the first such market the rest are skipped without a request. A market or window you name yourself still raises. data_dir reruns keep the reason (saved in .outside-window), and BarsDownloadResult.outside lists those markets instead of raising.
• Skips are reported once, after the run: one Skipped N of M markets for '<series>': <reasons> line per series, the free window reason carrying the upgrade link. The coverage reason reads "no coverage in window" and the file reason "no history file", as in result.skipped.
• Streaming requests order book history from 1 ms before a market's replay start (the route's after is exclusive), so an event at a market's first millisecond replays as it does from data_dir.
• SeriesDownloadResult.upgrade_url, set when outside_window is not empty.
• MCP: the instructions say a free account reads markets open in the last 7 days.