Continue Blender Web parity task handoff

docs/status/M16-GAP-00254.md

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+# M16-GAP-00254 Status
+
+status: done
+task: armature.select_linked_pick operator LOCAL_EXACT slice
+updated: 2026-08-23 America/New_York
+
+scope:
+
+- The minimal fixture contains a picked root, two connected descendants, and
+  an independent unselected bone. Desktop evidence exercises the shared linked
+  selection path with `deselect=false` and `all_forks=false`, selecting only the
+  picked linked chain while preserving hierarchy, visibility, and geometry.
+- WASM/Main reads the same fixture. The comparator confirms desktop/WASM parity
+  and save/reopen stability.
+
+evidence:
+
+- Fixture generation, desktop checker, npm comparator, direct comparator,
+  malformed-input negative, save/reopen check, and task-context handoff passed.
+- Repeated checker execution is idempotent (`SKIPPED_ALREADY_APPLIED` after
+  the first run); Chromium-only policy was preserved and no Firefox/WebKit run
+  was made.
+
+nextTask: `M16-GAP-00255`