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/components/thinking.tsx

@@ -537,6 +537,7 @@ interface Group {
 export const ToolTrail = memo(function ToolTrail({
   busy = false,
   detailsMode = 'collapsed',
+  outcome = '',
   reasoningActive = false,
   reasoning = '',
   reasoningTokens,
@@ -550,6 +551,7 @@ export const ToolTrail = memo(function ToolTrail({
 }: {
   busy?: boolean
   detailsMode?: DetailsMode
+  outcome?: string
   reasoningActive?: boolean
   reasoning?: string
   reasoningTokens?: number
@@ -596,7 +598,16 @@ export const ToolTrail = memo(function ToolTrail({
 
   const cot = useMemo(() => thinkingPreview(reasoning, 'full', THINKING_COT_MAX), [reasoning])
 
-  if (!busy && !trail.length && !tools.length && !subagents.length && !activity.length && !cot && !reasoningActive) {
+  if (
+    !busy &&
+    !trail.length &&
+    !tools.length &&
+    !subagents.length &&
+    !activity.length &&
+    !cot &&
+    !reasoningActive &&
+    !outcome
+  ) {
     return null
   }
 
@@ -961,6 +972,13 @@ export const ToolTrail = memo(function ToolTrail({
           t={t}
         />
       ) : null}
+      {outcome ? (
+        <Box marginTop={1}>
+          <Text color={t.color.dim} dim>
+            · {outcome}
+          </Text>
+        </Box>
+      ) : null}
     </Box>
   )
 })