[DevManfre]

Roadmap 4.10 and 4.11.

4.10 — virtualized provider table

• Past 100 rows the Providers table mounts only the rows near the viewport (plus 6 overscan per edge); the rest is two spacer rows.
• Row heights are measured (an open accordion panel counts toward its row) and estimated by density until a row has been seen. Windowing math lives in lib/virtualRows.ts.
• At or below 100 rows nothing changes: entry stagger, exit animation and the FLIP reorder stay as they were. Past 100 they are off, since they would replay on every scroll.
• No new dependency.

4.11 — zoom by dragging

• Dragging across the History trend chart selects a range; a click without a drag does nothing.
• The range is carried in the address as since / until (from is already the Overview link marker), and a page opened with them starts on that range. Closing the provider drawer no longer drops it.
• New string history.brush-hint in all six catalogs. Keyboard users keep the two date inputs.

Verification

• typecheck, biome and the full Vitest suite (1016) pass; new tests for rowSpan, readRange, the windowed table and the address round-trip.
• Redeployed the UI container: healthy, new bundle served.
• The four History visual baselines are agreed in their own commit, each frame looked at: only the hint line and the shift below it.

Not covered

• The drag gesture itself (happy-dom gives the chart no coordinates), and the windowed table at real layout heights, were not exercised in a browser. Not touch-friendly yet.