A trackpad swipe past either edge of the trend chart's horizontal scroller
chained into the page and the browser read it as its history gesture, so a
few scrolls in the Context tab could leave the whole app for another page in
the tab's history (back at the left edge, forward at the right).
Two layers, matching what the harness already does for its own horizontal
scrollers: `overscroll-behavior-x: contain` on the chart scroller and the
agent graph's stage stops the chaining (Chromium/Firefox), and overscroll.ts
cancels the horizontal-dominant wheel the scroller cannot consume at either
boundary for WebKit, which still navigates on horizontal overscroll with the
property set (WebKit bug 240183). Vertical-dominant gestures are untouched,
so a wheel over the chart still scrolls the page.
Every client file reached hooks and element types through the central
require seam (src/client/react.ts) and spelled them React.useState /
ReactNS.ReactElement. Import the members directly instead — named value
imports for hooks, inline type-only imports for element types — and let
the bundler own the single require('react'), which is exactly what the
platform module table answers.
This needs JSX off the classic runtime (it required a React identifier
in every tsx scope): tsconfig moves to jsx: react-jsx, so the bundle
sources jsx from 'react/jsx-runtime', already seeded by every supported
harness (verified against the dsh-v0.1.2-rc.1 platform.ts). The bundle
smoke's fake module table gains the specifier to stay a faithful shell
stand-in. h() survives as a local createElement alias at the slot
render-prop seams and the lightbox portal imports createPortal from
react-dom directly.
Verified: the built client.js requires react, react/jsx-runtime, and
react-dom exactly once each; the compat lane (bundle smoke + the
real-baseline matrix) passes against the fresh artifacts; the full gate
stays green with per-file coverage at 100%.
A new Agent Network card at the foot of the Context tab: the whole agent family (current agent, ancestors, subagents at any depth) as a live, fully responsive node map — fused context rings per session, family-colored lineage, halo status language, hover inspector, and click-to-jump into any agent's session. 693 tests, 100% coverage.
Bowen Liang