Family-A wafers never send 0xAA 0x88 framing — _run() now routes
to _run_ascii() on first byte dispatch instead of treating the whole
stream as corrupt binary.
Binary path gets a 16 KB give-up cap (bytes, not attempts) so a
permanently-corrupt port can't stall the reader indefinitely. Raw
wire bytes go to DEBUG only; the ERROR line that surfaces in the
Activity Log is kept free of internal buffer content.
- add family_code param to StreamReader for ASCII decode routing
- add _run_binary give-up cap + DEBUG-only hex diagnostic
- fix stop(): close transport on wedged thread (binary + ASCII paths)
- refactor test_stream_reader: consolidate ASCII regression + resync
give-up + DEBUG-vs-ERROR log split tests; drop redundant parse_line
- extend test_session_controller: live-stream gate for non-X family
- StreamControlPanel.qml: thread-safe stop on tab leave
- Draw rings around hottest and coldest sensors on export.
- Extend export_image to support second line for live metrics.
- Format detailed sensor stats in export footer.
- Add test coverage for footer rows, overlays, and stats.
- Implement synchronous offscreen wafer map PNG rendering and CSV summary.
- Add "Batch Export" button to file browser sidebar.
- Adjust trend pane bottom spacer to align with About button when visible.
- Fix type check errors and add pytest coverage for batch export.