* fix(workspace-space): serialize local disk and cap traversal memory
Prevent resource exhaustion during large workspace scans by limiting
local disk access to one concurrent `du` call and capping portable
traversal memory to 100k entries or 64 MiB per worktree. Fixes July 27
incident with 298 worktrees causing host stalls and renderer OOM.
Portable traversals now use fixed-worker iterative frames instead of
recursive promises. Capacity failures become unavailable rows. Behavior
below limits is unchanged.
* fix(workspace-space): bound concurrent SSH fallback traversals
Desktop-side SSH fallback traversals run in the main process with independent admission
budgets. Without limiting, up to six concurrent traversals could stack six 64 MiB budgets.
Cap remote fallback traversals to 2 concurrent, keeping aggregate admission at 2 × 64 MiB.
Also make capacity error messages reflect configured limits instead of hardcoded defaults.
Jinjing
9a8e21a47e