fix(tui): retain transcript anchors across history updates - #395
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dallenpyrah wants to merge 1 commit into
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Anchor loaded transcript windows on retained member identities instead of numeric offsets, and keep mounted group nodes keyed by stable group IDs. Prepending history no longer jumps to newest; count-only membership updates preserve expansion and selection.
Home reaches the oldest retained content in one press, arrows cross mounted windows, and Home/End scrolling applies even when the mounted page does not change.
Part of #381. This remains draft pending #378 and Generalist #464: the offline input contract only contains loaded items, not authoritative paging cursors, unloaded membership, or reconnect receipts. The group mount limit is not a leaf-row cap. No hosted paging protocol is invented here.
Bun 1.4.0 validation passed: six focused unit tests, two real OpenTUI fixtures, standalone typecheck/lint, scoped ast-grep, repository lint, and diff hygiene. Fixtures cover 10,000 entries, oversized first families, count-only append, resize, immutable replacement, selection, and expansion.
Actual End → single Home keyboard result, preserving the selected and expanded oldest entry: