Function pushKeyEntries

pushKeyEntries(
    container: KeyRuleContainer,
    property: "penetrationKeys" | "stoppedKeys" | "allowedKeys",
    keys: string[],
    createEntry: (key: string) => KeyRule,
): () => void
Push key entries into a rule array on container, deduplicating by key name, and return a cleanup function that removes exactly the entries that were added by this call.

Used by allowModal, penetration, and stop to eliminate the repeated bookkeeping pattern across focus-target and layer-level branches.
Parameters
- container: KeyRuleContainer
  The object holding the target array (a layer or focus target).
- property: "penetrationKeys" | "stoppedKeys" | "allowedKeys"
  Which array to operate on.
- keys: string[]
  Normalized key names to add.
- createEntry: (key: string) => KeyRule
  Factory that builds a KeyRule for a given key.
Returns () => void
A cleanup callback that removes the added entries.
- Defined in src/keyboard-engine/src/providers/helpers.ts:101