Bugfix: Fix stale cursor index after file ops

- Move cursor/selection adjustment BEFORE `fetchEntryUnderCursor()` in the `directory-diff` handler
- Previously, `fetchEntryUnderCursor()` fired with the old index against the new (shorter) listing, causing `get_file_at: index out of bounds` errors after delete/move operations
- The adjustment was already correct, just ordered after the async IPC call instead of before it

Author: vdavid

apps/desktop/src/lib/file-explorer/pane/FilePane.svelte

@@ -1411,34 +1411,16 @@
                     }
                 }
 
-                void fetchEntryUnderCursor()
-                void fetchListingStats()
-
-                // Diff-driven selection adjustment: re-resolve selected names to new indices
-                if (operationSelectedNames !== null && operationSelectedNames !== 'all') {
-                    diffGeneration++
-                    const myGeneration = diffGeneration
-                    void findFileIndices(listingId, operationSelectedNames, includeHidden).then((nameToIndexMap) => {
-                        if (myGeneration !== diffGeneration) return
-                        selection.setSelectedIndices(buildFrontendIndices(nameToIndexMap, hasParent))
-                    })
-                }
-
-                // Adjust cursor and selection after structural diffs (adds/removes)
+                // Adjust cursor and selection BEFORE fetching entry under cursor,
+                // otherwise fetchEntryUnderCursor uses the old index against the
+                // new (shorter) listing, causing "index out of bounds" errors.
                 const hasStructuralChanges = diff.changes.some((c) => c.type === 'add' || c.type === 'remove')
                 if (hasStructuralChanges) {
                     const removeIndices = diff.changes.filter((c) => c.type === 'remove').map((c) => c.index)
                     const addIndices = diff.changes.filter((c) => c.type === 'add').map((c) => c.index)
 
                     const offset = hasParent ? 1 : 0
 
-                    // Selection: only adjust outside operations (operations handle via findFileIndices)
-                    if (operationSelectedNames === null && selection.selectedIndices.size > 0) {
-                        const backendSelected = selection.getSelectedIndices().map((i) => i - offset)
-                        const adjusted = adjustSelectionIndices(backendSelected, removeIndices, addIndices)
-                        selection.setSelectedIndices(adjusted.map((i) => i + offset))
-                    }
-
                     // Cursor: always adjust (no operation-specific cursor handling exists)
                     const backendCursor = cursorIndex - offset
                     const adjustedCursor = adjustSelectionIndices([backendCursor], removeIndices, addIndices)
@@ -1447,6 +1429,26 @@
                     } else {
                         cursorIndex = Math.max(0, Math.min(cursorIndex, count - 1 + offset))
                     }
+
+                    // Selection: only adjust outside operations (operations handle via findFileIndices)
+                    if (operationSelectedNames === null && selection.selectedIndices.size > 0) {
+                        const backendSelected = selection.getSelectedIndices().map((i) => i - offset)
+                        const adjusted = adjustSelectionIndices(backendSelected, removeIndices, addIndices)
+                        selection.setSelectedIndices(adjusted.map((i) => i + offset))
+                    }
+                }
+
+                void fetchEntryUnderCursor()
+                void fetchListingStats()
+
+                // Diff-driven selection adjustment: re-resolve selected names to new indices
+                if (operationSelectedNames !== null && operationSelectedNames !== 'all') {
+                    diffGeneration++
+                    const myGeneration = diffGeneration
+                    void findFileIndices(listingId, operationSelectedNames, includeHidden).then((nameToIndexMap) => {
+                        if (myGeneration !== diffGeneration) return
+                        selection.setSelectedIndices(buildFrontendIndices(nameToIndexMap, hasParent))
+                    })
                 }
             })
         })