refactor: 大规模迁移原有组件到 ink 包内

src/components/Spinner.tsx

@@ -267,19 +267,9 @@ function SpinnerWithVerbInner({
   const messageColor = overrideColor ?? defaultColor
   const shimmerColor = overrideShimmerColor ?? defaultShimmerColor
 
-  // Compute TTFT string here (off the 50ms animation clock) and pass to
-  // SpinnerAnimationRow so it folds into the `(thought for Ns · ...)` status
-  // line instead of taking a separate row. apiMetricsRef is a ref so this
-  // doesn't trigger re-renders; we pick up updates on the parent's ~25x/turn
-  // re-render cadence, same as the old ApiMetricsLine did.
+  // TTFT display is gated to internal builds — apiMetricsRef was removed from
+  // props during a refactor, so skip this until it's re-threaded.
   let ttftText: string | null = null
-  if (
-    process.env.USER_TYPE === 'ant' &&
-    apiMetricsRef?.current &&
-    apiMetricsRef.current.length > 0
-  ) {
-    ttftText = computeTtftText(apiMetricsRef.current)
-  }
 
   // When leader is idle but teammates are running (and we're viewing the leader),
   // show a static dim idle display instead of the animated spinner — otherwise