fix: pass translation function t as prop to AgenticReadinessHeader

The AgenticReadinessHeader component was failing with 'TypeError: t is not a function'
because the translation function was not being passed as a prop when the component
was instantiated on line 3724.

This fixes the blank screen error in the AgenticReadiness tab.

Fixes the root cause identified via debugger:
- Component expects t as prop (line 1408)
- Component call was missing t={t} (line 3724-3728)

https://claude.ai/code/session_c61d4539-cc2e-4386-8191-ec167cef65a5

frontend/components/tabs/AgenticReadinessTab.tsx

@@ -3725,6 +3725,7 @@ export function AgenticReadinessTab({ data, onTabChange }: AgenticReadinessTabPr
         tierData={tierData}
         totalVolume={totalVolume}
         totalQueues={totalQueues}
+        t={t}
       />
 
       {/* SECCIÓN 2-5: Desglose por Colas en 4 Tablas por Tier */}