Core DevPre-alpha

Render hooks

Package: sumeru/core/engine/render

The render layer turns sys.view records and ORM data into HTML for the workspace shell.

Form views: Record forms in the workspace are rendered client-side by SWC (sumeru/core/swc/src/views/FormView.ts, form-sheet.ts). Field widgets live in sumeru/core/swc/src/widgets/ with registration in registry.ts. Go form_render.go and related files were removed; the CSS contract remains in sumeru-views.css / sumeru-workspace.css.

Render package layout

File	Role
`view_render.go`	`RenderView` — selects list/kanban/pivot (form → SWC)
~~`form_render.go`~~	Removed — form UI is SWC
`list_render.go`, `kanban_render.go`, `pivot_render.go`	List, kanban, and pivot views
`activity_chatter_render.go`	Messages tab (mail)
`shell_render.go`, `menus.go`, `pinned_apps.go`	Top bar, sidebar, pins
`render_types.go`	`PageData`, hooks registration

Form Edit / Save / Cancel is owned by SWC FormView.ts (sumeru/core/swc/src/views/FormView.ts), not a Go chrome file.

Shell hook

Inject HTML into the top bar area:

render.RegisterShellHook(func(ctx context.Context, vr *render.ViewRecordData, ro bool) template.HTML {
    return template.HTML(`<div class="my-hook">...</div>`)
})

Example: sumeru/addons/sumeru_ai/init.go

Notebook hook

Replace a notebook page body for a given model and tab title:

render.RegisterNotebookHook("core.partner", "ai insights", func(ctx context.Context, vr *render.ViewRecordData, ro bool) template.HTML {
    return template.HTML(`<p>Placeholder content</p>`)
})

Kanban group expander

Custom column loader for grouped kanban boards (SWC workspace). Package: sumeru/core/engine/swcmeta

swcmeta.RegisterKanbanGroupExpander("crm.lead", "stage_id", expandFn)

Expander functions return []swcmeta.KanbanColumn. Example: sumeru_addons/crm/services/hooks.go (pipeline and forecast kanbans).

View types

Type	Status
`list`	Implemented (canonical name; legacy `tree` mapped)
`form`	Implemented (SWC client render)
`kanban`	Implemented
`pivot`	Implemented (v1 HTML aggregation)

Styles

Core CSS: core/engine/assets/css/. Workspace pages add sumeru-workspace.css. Per-page sheets (home, apps, settings) register via PageData.ViewStylesheetURLs.