Smooth browsing and simplify workspace controls - #8
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Routine refreshes previously replaced a folder with its first 48 entries before hydration, dropping offscreen selections and collapsing the scroll range. Refresh now updates the full listing in one step and preserves selection and scroll position. Medium-sized folders use virtualization, scrolling retains overlapping rows, date formatting is shared, and unchanged navigation controls retain their DOM and keyboard focus.
Simplifies the browsing interface with quieter controls, a persistent folder-tree disclosure, fewer duplicate shortcuts, readable sort indicators, and useful empty/error states. The action shelf prioritizes common file operations and has searchable keyboard-accessible overflow. Menus preserve search/focus during updates, short status messages no longer collapse the header unnecessarily, and source/target badges fit correctly with a single tab. Existing custom toolbar order is retained.
Local comparison against
178931f, using the same 1,800-file fixture: median filtering through settled paint improved from 216.3 ms to 33.3 ms, refresh from 450.9 ms to 50.0 ms, and rendered rows fell from 1,800 to 48. Includes a reproducible benchmark and a dated testing ledger with limitations.Validation: 33 new interaction checks (added to CI and the acceptance runner); six responsive widths; desktop/mobile accessibility; navigation, keyboard, preferences, cache, pane safety/layout, preview/editor/properties, thumbnails, terminal UI, disk analysis, ZIP, and MCP context suites. The 100,000-file UI test, startup budgets, and performance guard passed. Dependency audit reports zero vulnerabilities. Native Windows PowerShell 5 compatibility remains a previously identified limitation; terminal UI checks use the mocked bridge.