feat(transcription): add shared voice input support (#4232)

* feat(webui): add voice transcription input

* feat(webui): render ANSI output in code blocks

* refactor(webui): isolate voice recorder logic

* refactor(transcription): keep websocket ingress thin

* refactor(transcription): resolve channel audio settings on demand

* style(webui): neutralize voice waveform color

* feat(webui): add voice input tooltip

* feat(webui): add voice input keyboard shortcut

* fix(webui): distinguish voice shortcut platforms

* fix(webui): place voice button after model selector

* refactor(webui): share voice hold recording helpers

* fix(desktop): allow microphone voice input

* fix(webui): stabilize token usage month labels

* feat(webui): show voice input on settings overview

* fix(webui): label voice capability as recognition

* fix(webui): align capability overview status

* refactor(webui): isolate transcription socket handling

* fix(webui): soften silent voice waveform

* refactor(audio): clarify transcription service location

* docs(transcription): clarify audio and provider boundaries

* fix(exec): reduce session output polling flake

webui/src/components/thread/ThreadShell.tsx

@@ -302,6 +302,7 @@ export function ThreadShell({
     runStartedAt,
     goalState,
     send,
+    transcribeAudio,
     stop,
     setMessages,
     streamError,
@@ -642,6 +643,7 @@ export function ThreadShell({
           cliApps={cliApps}
           mcpPresets={mcpPresets}
           onStop={stop}
+          onTranscribeAudio={transcribeAudio}
           runStartedAt={runStartedAt}
           goalState={goalState}
           workspaceScope={workspaceScope}
@@ -672,6 +674,7 @@ export function ThreadShell({
           cliApps={cliApps}
           mcpPresets={mcpPresets}
           runStartedAt={runStartedAt}
+          onTranscribeAudio={transcribeAudio}
           goalState={goalState}
           workspaceScope={workspaceScope}
           workspaceDefaultScope={workspaceDefaultScope}