[ael-dev3]

Behavior

Escape-dismissed profile previews could reopen after their closing animation when layout changes generated mouse-entry events under a stationary pointer. Keep dismissal in place until a mouse or hover-capable pen deliberately moves outside the preview, while preserving keyboard, touch, nested-preview and fresh-hover behavior. A deterministic regression reproduces the old failure after the panel has fully closed and checks deliberate mouse and pen reopening.

The same batch fixes browser-fixture preconditions: preserve the first-paint stopwatch while waiting for app handover, compare Back navigation with the card position at the actual click, await exact page-load counts, and run local D1 commands asynchronously so Node 22 can retire closed pooled sockets. Unexpected upload failures retain bounded Worker diagnostics. Existing timing limits, assertions, retries, skips and workflows remain unchanged.

Validation

• Required scripts/check.sh: 612 native tests, formatting, native/Wasm Clippy and licenses pass.
• Related preview regressions: 44 pass, one existing declared touch-only skip, zero retries; the new layout regression fails on the old product and passes after the fix.
• Prior focused fixture repairs: 12 real Worker upload cases under CI Node 22, 17 split-part cases, two affected live cases and 28 tooling checks pass without retries.
• All prior 934 browser case identities are retained; the layout/pen regression adds one. Normal CI must pass cleanly before merge; recovered flakes remain rejected.