[adampeterhiggins]

Problem

Upstream moved the sidebar's thread row, draft rows and list markers out of Sidebar.tsx into sidebar/SidebarThreadRow.tsx, SidebarDraftBlock.tsx and SidebarListMarkers.tsx (pingdotgg#22696, pingdotgg#22729). The fork kept its own versions inline, so those three files became dead code that nothing imported (knip's unused-files finding on #460). Upstream fixes made to them merged without conflicts and never reached the fork, which is how these two were missed:

• perf(web): a streaming thread re-renders only its own sidebar row pingdotgg/t3code#22730: a streaming thread re-renders only its own sidebar row. The sidebar list already switched to quiet shells in chore: merge upstream/main into fork #460, but the per-row live read never reached the fork's row.
• fix(web): Arabic and Hebrew text reads and navigates right to left pingdotgg/t3code#22777: Arabic and Hebrew thread titles read right to left.

Fix

• The fork's row, draft rows and markers move into upstream's files with no behaviour change. Apart from the two ports below, every line moved unchanged; I checked this by comparing line counts before and after. Tab lists, group headers and the main component stay in Sidebar.tsx and import from the new files. Future upstream edits to these files now merge into fork code or conflict visibly.
• SortableThreadRow and SidebarSearchResultRow read the live thread shell, as upstream's do. The fork's row also reads the live shell for the tab it displays.
• Thread titles, tab titles and the rename field use textDirection / dir="auto".

Upstream row changes that were intentionally not ported:

• The hover tooltip with its branch-mismatch warning: the fork replaced it with the preview registry (fix(web): every thread and agent hover comes from the preview registry #394).
• The pin moving left of the status slot (fix(web): pinned threads' pin icon stays put on hover pingdotgg/t3code#22303): the fork keeps the pin trailing (fix(web): pinned sidebar rows keep the pin still on hover #150).
• compactSidebarTimeLabel: the fork keeps it in SidebarTabSummary.

Verification

• vp run check:changed: format, lint, typecheck (2 packages) and tests (3 files, 240 tests) pass. Knip's unused-files pass is now clean. The unused-exports pass still fails on 117 existing exports outside the sidebar, the same finding noted on chore: merge upstream/main into fork #460.
• No test renders the sidebar component, and I did not run the app or a browser, so this hasn't been checked in a running client.

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