turborepo

d3aca27d - fix: Prevent `filterUsingTasks` `--filter` from pulling dependents into Task Graph (#12535)

fix: Prevent `filterUsingTasks` `--filter` from pulling dependents into Task Graph (#12535) ## Summary - `--filter ./packages/*` with `filterUsingTasks` enabled was incorrectly including apps in the task graph - `filter_engine_to_tasks()` was calling `retain_affected_tasks()` which does a reverse DFS (finding dependents) before a forward DFS (finding dependencies) — correct for `--affected`, wrong for `--filter` - Added `Engine::retain_filtered_tasks()` that does forward DFS only (transitive dependencies for execution, no dependent expansion) ## Why When a user writes `--filter ./packages/*`, they expect only tasks from `packages/*` to run. The `...` dependent/dependency expansion is handled during selector resolution — the final pruning step should only add upstream dependencies needed for execution, not pull in downstream consumers. ## How to test `cargo test -p turborepo-lib -- task_filter` — includes a regression test (`filter_does_not_include_dependents`) that sets up `app#build -> ui#build` and asserts filtering to `ui` does not pull in `app`.