gsxdsm 9d07e85232 FN-6690: preload lazy-view CSS chunks ...

Ensure persisted lazy dashboard views request their extracted CSS before first paint.

- Carry CSS asset paths through the Vite view chunk manifest.
- Inject stylesheet links alongside modulepreload links for persisted lazy views.
- Cover Command Center CSS preloading and served CSS availability in dashboard tests.
- Quarantine the unrelated session cross-tab cleanup flake observed during verification.

Files changed:
 .changeset/fn-6690-lazy-view-css.md                |   5 +
 .../__tests__/board-mobile-initial-render.test.tsx |  16 ++-
 .../src/__tests__/server-view-preload.test.ts      | 152 ++++++++++++++++++++-
 .../src/__tests__/view-chunk-manifest.test.ts      |  57 ++++++--
 packages/dashboard/src/server.ts                   |  16 ++-
 packages/dashboard/src/view-chunk-manifest.ts      |  26 +++-
 packages/dashboard/vitest.config.ts                |   6 +-
 scripts/lib/test-quarantine.json                   |   5 +
 8 files changed, 253 insertions(+), 30 deletions(-)

Fusion-Task-Id: FN-6690

Fusion-Task-Lineage: 6ac0d06f-14db-4302-98f8-0e742172ed7f

2026-06-19 03:49:56 -07:00

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