fix(tui): approval flow + input ergonomics + selection perf

- tui_gateway: route approvals through gateway callback (HERMES_GATEWAY_SESSION/
  HERMES_EXEC_ASK) so dangerous commands emit approval.request instead of
  silently falling through the CLI input() path and auto-denying
- approval UX: dedicated PromptZone between transcript and composer, safer
  defaults (sel=0, numeric quick-picks, no Esc=deny), activity trail line,
  outcome footer under the cost row
- text input: Ctrl+A select-all, real forward Delete, Ctrl+W always consumed
  (fixes Ctrl+Backspace at cursor 0 inserting literal w)
- hermes-ink selection: swap synchronous onRender() for throttled
  scheduleRender() on drag, and only notify React subscribers on presence
  change — no more per-cell paint/subscribe spam
- useConfigSync: silence config.get polling failures instead of surfacing
  'error: timeout: config.get' in the transcript

ui-tui/src/app/useConfigSync.ts

@@ -1,19 +1,32 @@
 import { useEffect, useRef } from 'react'
 
 import { resolveDetailsMode } from '../domain/details.js'
+import type { GatewayClient } from '../gatewayClient.js'
 import type {
   ConfigFullResponse,
   ConfigMtimeResponse,
   ReloadMcpResponse,
   VoiceToggleResponse
 } from '../gatewayTypes.js'
+import { asRpcResult } from '../lib/rpc.js'
 
-import type { GatewayRpc } from './interfaces.js'
 import { turnController } from './turnController.js'
 import { patchUiState } from './uiStore.js'
 
 const MTIME_POLL_MS = 5000
 
+const quietRpc = async <T extends Record<string, any> = Record<string, any>>(
+  gw: GatewayClient,
+  method: string,
+  params: Record<string, unknown> = {}
+): Promise<null | T> => {
+  try {
+    return asRpcResult<T>(await gw.request<T>(method, params))
+  } catch {
+    return null
+  }
+}
+
 const applyDisplay = (cfg: ConfigFullResponse | null, setBell: (v: boolean) => void) => {
   const d = cfg?.config?.display ?? {}
 
@@ -25,7 +38,7 @@ const applyDisplay = (cfg: ConfigFullResponse | null, setBell: (v: boolean) => v
   })
 }
 
-export function useConfigSync({ rpc, setBellOnComplete, setVoiceEnabled, sid }: UseConfigSyncOptions) {
+export function useConfigSync({ gw, setBellOnComplete, setVoiceEnabled, sid }: UseConfigSyncOptions) {
   const mtimeRef = useRef(0)
 
   useEffect(() => {
@@ -33,12 +46,12 @@ export function useConfigSync({ rpc, setBellOnComplete, setVoiceEnabled, sid }:
       return
     }
 
-    rpc<VoiceToggleResponse>('voice.toggle', { action: 'status' }).then(r => setVoiceEnabled(!!r?.enabled))
-    rpc<ConfigMtimeResponse>('config.get', { key: 'mtime' }).then(r => {
+    quietRpc<VoiceToggleResponse>(gw, 'voice.toggle', { action: 'status' }).then(r => setVoiceEnabled(!!r?.enabled))
+    quietRpc<ConfigMtimeResponse>(gw, 'config.get', { key: 'mtime' }).then(r => {
       mtimeRef.current = Number(r?.mtime ?? 0)
     })
-    rpc<ConfigFullResponse>('config.get', { key: 'full' }).then(r => applyDisplay(r, setBellOnComplete))
-  }, [rpc, setBellOnComplete, setVoiceEnabled, sid])
+    quietRpc<ConfigFullResponse>(gw, 'config.get', { key: 'full' }).then(r => applyDisplay(r, setBellOnComplete))
+  }, [gw, setBellOnComplete, setVoiceEnabled, sid])
 
   useEffect(() => {
     if (!sid) {
@@ -46,7 +59,7 @@ export function useConfigSync({ rpc, setBellOnComplete, setVoiceEnabled, sid }:
     }
 
     const id = setInterval(() => {
-      rpc<ConfigMtimeResponse>('config.get', { key: 'mtime' }).then(r => {
+      quietRpc<ConfigMtimeResponse>(gw, 'config.get', { key: 'mtime' }).then(r => {
         const next = Number(r?.mtime ?? 0)
 
         if (!mtimeRef.current) {
@@ -63,19 +76,19 @@ export function useConfigSync({ rpc, setBellOnComplete, setVoiceEnabled, sid }:
 
         mtimeRef.current = next
 
-        rpc<ReloadMcpResponse>('reload.mcp', { session_id: sid }).then(
+        quietRpc<ReloadMcpResponse>(gw, 'reload.mcp', { session_id: sid }).then(
           r => r && turnController.pushActivity('MCP reloaded after config change')
         )
-        rpc<ConfigFullResponse>('config.get', { key: 'full' }).then(r => applyDisplay(r, setBellOnComplete))
+        quietRpc<ConfigFullResponse>(gw, 'config.get', { key: 'full' }).then(r => applyDisplay(r, setBellOnComplete))
       })
     }, MTIME_POLL_MS)
 
     return () => clearInterval(id)
-  }, [rpc, setBellOnComplete, sid])
+  }, [gw, setBellOnComplete, sid])
 }
 
 export interface UseConfigSyncOptions {
-  rpc: GatewayRpc
+  gw: GatewayClient
   setBellOnComplete: (v: boolean) => void
   setVoiceEnabled: (v: boolean) => void
   sid: null | string