What

Adds an incremental, type-to-filter to the analyze disk explorer. Press / to filter the current list as you type, Enter to apply, Esc to clear. Works in both:

• the Top files (T) view, and
• the directory drill-down view.

Matching is case-insensitive substring over the entry name and its display path. This makes a deep scan navigable when you already know what you are looking for (e.g. node_modules, .mp4), instead of only scrolling a size-ranked list.

Usage

mo analyze
#   drill into a directory  → / → type "node" → Enter      (tree filter)
#   press t                 → / → type "mp4"  → Enter      (Top files filter)
#   Esc clears the filter; a second Esc leaves the view

The footer and a Filter: <query> (N matches) line show the active state.

Implementation notes

• The full list is kept in largeFilesAll / entriesAll; largeFiles / entries hold the rendered view. Every existing reader (render, navigation, delete, open) is unchanged because it already reads the view slice.
• Match semantics are single-sourced (filterMatches, generic filterByQuery / removeByPath) so the two views cannot drift.
• Changing the query clears multi-selection, so a delete/open can never touch a row hidden by the filter. The single-item delete targets the visible match.
• Drilling into a filtered directory snapshots the parent in full and remaps the selection, so going back restores the unfiltered siblings with the entered directory still highlighted.
• Filtering is disabled in overview mode and is ephemeral per view (reset on refresh, view toggle, and navigation).

Safety fix included

While wiring the shared removeByPath, this also fixes a list-corruption bug: when no filter is active the view aliases its backing list, and removing from both shifted the shared array twice, leaving a duplicated, stale entry after a delete. removePathFromView now trims the backing list once and rebuilds each view through the filters.

Testing

• 15 new tests in cmd/analyze/analyze_filter_test.go (Top-files + tree filters, drill-in round-trip, multi-select safety, backing-list integrity).
• go test ./cmd/... green, gofmt clean, go vet clean, make build passes.

No new dependencies; matching is plain substring (fuzzy ranking left as a follow-up).