feat: add responsive ultrawide work lanes

2026-08-31 17:46:18 -07:00
parent e7ca1d0a73
commit 3f15b13312
11 changed files with 304 additions and 74 deletions
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+# 0009: The primary work region uses responsive vertical lanes
+
+Status: accepted for the native vertical slice.
+
+The middle 60% work region shows one vertical lane in compact windows, three at
+normal desktop widths, and five when at least 2800 px remains after the sidebar.
+A 3440 px ultrawide therefore presents five lanes. A sliding window over the six
+comparison panes always keeps the selected pane visible.
+
+This is not a return to the original 2×3 dashboard. Every lane receives the full
+work-region height, the surrounding context and decision bands remain stable,
+and only the selected lane owns keyboard input. Clicking a lane selects it. Pane
+processes and output continue independently of selection.
+
+Terminal geometry is computed from the actual width of one lane, including gaps
+and insets. The selected real PTY is resized through the runtime actor when the
+responsive lane count or window bounds change. On the 3440×1440 reference
+display the current fixed-cell spike derives approximately 71 columns by 40
+rows per lane.
+
+The first actor slice still owns one real PTY and five deterministic comparison
+surfaces. Promoting the runtime boundary from one actor to a pane-indexed session
+registry is required before all five visible terminal lanes can own independent
+real processes.