SourceAdapterPanel gains set-active selector for registered adapters; E2E spec rewritten with full click→store→indicator flow; v107 arc closed at 0.14.0 with all deferred Tier 1+ items preserved.
v107.0.32026-06-04
·SourceAdapterPanel: "Set as active" button on registered entries, disabled when active
·Active indicator badge per entry; click updates sources.active in settings store
·E2E: 9/9 — button visibility, click flow, store read, dead-links all covered
·JSON-404 paperweight removed; v107 Tier 0 routing infrastructure is complete