The two auto-open switches (a new subagent, a new background job) and the
topology jump-back opened the Tasks page with `target: 'bottom'` — the
plugin's own bottom workbench, i.e. the bottom bar. The right column IS DSH's
native Sidebar since v0.19.0 and every other open in this plugin already lands
there, so `service.ts`'s native branch was bypassed and the switches did NOT
do what their copy promises (README feature table + `settingsSubagentDesc` /
`settingsJobsDesc` in all 20 dictionaries: "wide viewports also expand the
sidebar, while narrow full-screen drawers are not forced open").
- use-host-feeds: one `activateTasksPage(ctx, sessionId, { background })`
carries all three triggers and opens the Tasks page at the default (native)
landing, so the host expands the column in the same step.
- Narrow viewports keep that promise: below 768px the host draws the column
FULLSCREEN (`autoFullscreen = viewportWidth < 768`, `position: fixed;
inset: 0`) and expands it on every open with no way to suppress it, so a
BACKGROUND activation parks the tab — reads `ctx.sidebarRight.isExpanded()`
first and puts the column back to collapsed in the same React batch (only
for the mounted session, which is what that face acts on, and only when the
user had it collapsed). The explicit jump-back is a user gesture and always
takes the host's expansion.
- The bottom workbench keeps its own flows on `target: 'bottom'` (its `+`
menu, the first-expansion auto-terminal); `OpenTabSeed.target` is unchanged.
- tests/sidebar-auto-activation.spec.tsx: asserts the native surface receives
`openTab { kind: 'subagent', revealIfOpened: true }`, that the workbench
stays closed and gains no tab, the park counts per width, the resize-before
-fire read, and the jump-back's no-park. All 10 cases fail against the
unfixed module.
Root cause: 223b254 (retire the plugin's own right panel, v0.19.0-alpha.0)
rewrote these three landings from the plugin's right pane to the bottom one.
DSH 0.1.5 owns the right column (its native Sidebar hosts every tab type
this plugin registers), so the plugin's own right panel, its width drag /
new-session seed prefs, and the free-window feature are gone. The bottom
workbench is the only plugin-owned surface left, and its expand/collapse
control is registered into DSH's session-header utilities list slot (the
header's corner seat belongs to the native sidebar's own control).
- state: one `bottomSplits` tree; `makeDefaultState()` takes no arguments;
`toggleBottomPanel` / `openTabInBottomPane` are the only landing
reducers; `setBottomHeight` and `sanitizeState` share the
`CONVERSATION_MIN` cap (a persisted tall height no longer snaps on the
first drag).
- service: every landing in the workbench (creation or focus) expands it;
`SIDEBAR_FEATURES` drops `'floatWindows'`; the open/close/activate tab
pools cover the single tree.
- shell: `Sidebar.tsx` renders only the bottom workbench; the toggle lives
in `sidebar/bottom-toggle.tsx`; layout-push pushes height only (no width,
no `--dsh-sidebar-width`).
- prefs: `openByDefault` / `defaultWidthPercent` / `changesDiffFloat`
removed from the schema, defaults, client parser, settings page, and all
20 dictionaries; the retired keys in stored documents are ignored.
- tests: free-window specs deleted, panel/float assertions dropped,
remaining suites adapted (124 files / 1287 tests); the mount lane asserts
the header toggle and sweeps the native sidebar's guide page.
- docs: README / README_EN / guide §0,§11 / AGENTS test map.
Menghuan1918