[bug] Duplicate voice typing listeners: starting twice in a row leaves multiple concurrent API streams

[Lanznx]

Problem

After a voice typing session finishes, starting voice typing again produces a duplicate listener:

• The previous listener is not properly closed/released
• As a result multiple API streams return data concurrently, producing duplicated or garbled results

Reproduction

1. Start voice typing → let it finish
2. Start voice typing again
3. Observe the duplicate listener + multiple concurrent API responses

Direction

• Before starting a new listener, make sure the previous session is fully torn down (stop the stream / cancel in-flight requests)
• Never allow more than one active listener at a time

Owner

YJ (@YJack0000)

Source: notes from a team sync.

[YJack0000]

@Lanznx WTTF is this