main=a24f7a115000012c7f867a53eda4b21f945b5d72 pr_head=10638bc1714dba9a627cdcf509a5edbf4df5de0c
PASS  #33131 merge commit 521ac7c218 is on main
PASS  PR head ThreadComposer imports useLegacyPlanModeState from apps/mobile/src/features/threads/use-legacy-plan-mode-enabled.ts
PASS  PR head shows the chip only when the Legacy Plan Mode pref is on and onUpdateInteractionMode exists
PASS  main no longer has apps/mobile/src/features/threads/use-legacy-plan-mode-enabled.ts
PASS  main no longer has apps/mobile/src/state/legacy-plan-mode.ts (the Legacy Plan Mode preference)
PASS  #33131 deleted apps/mobile/src/features/threads/use-legacy-plan-mode-enabled.ts
PASS  #33131 deleted apps/mobile/src/state/legacy-plan-mode.ts
PASS  main's mobile app has no onUpdateInteractionMode handler for the chip to call
PASS  main's mobile composer state says plan mode is not offered (every send is build)
VERDICT: CLOSE (obsolete) - #33131 removed mobile Plan mode and the preference/handler this PR's control depends on
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