feat(views): rework the picker for local/Linear labels, dedup, and local dispatch

I reworked pearl--pick-source-candidates for the three Phase 4 behaviors. Labels now read [local] for a private local view, [local -> Linear:SCOPE] for a published one, [linear] for a Linear view favorite, and [KIND] for a non-view favorite, so the label itself shows where a view lives.

Dispatch follows the source-of-truth rule (decision 16): every local view, tracked or not, dispatches as a :type filter and runs its local authoring filter, never the Linear mirror. A tracked entry carries its :linear-view-url so the rendered buffer can still open the mirror. Before this, a published local view ran server-side, which contradicted the editable-local model.

Cross-store dedup: a Linear view favorite whose customView id matches a tracked local view's :linear-view-id is dropped, so the editable local entry is the one shown. A local and a Linear view that merely share a name stay distinct.

Phase 4 of the views spec. Tests cover the labels, the local-filter dispatch, and the dedup and same-name cases. Suite, compile, and lint are green.

0 files changed, 0 insertions, 0 deletions