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feat(FN-4027): memoize startup slim list reads to avoid redundant fresh fet

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Added memoization for startup slim task list reads (`store.ts`), with dashboard server routing startup reads through the memo window and tests covering the store watcher consumers in scheduler and worktree-pool, plus performance documentation.

Fusion-Task-Id: FN-4027
This commit is contained in:
Fusion
2026-05-11 18:36:53 -07:00
committed by gsxdsm
parent 3a45a3fc25
commit 1772572191
9 changed files with 112 additions and 4 deletions
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2
packages/engine/src/worktree-pool.ts
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@@ -304,7 +304,7 @@ export async function scanIdleWorktrees(rootDir: string, store: TaskStore): Prom
const registeredDirs = dirs.filter((dir) => registeredWorktrees.has(resolve(dir)));
// Find worktree paths assigned to non-done tasks (active worktrees)
const tasks = await store.listTasks({ slim: true, includeArchived: false });
const tasks = await store.listTasks({ slim: true, includeArchived: false, startupMemo: true });
const activeWorktrees = new Set<string>();
for (const task of tasks) {
if (task.worktree && task.column !== "done" && registeredWorktrees.has(resolve(task.worktree))) {