feat: add pitch-deck service to core infrastructure

Migrated pitch-deck from breakpilot-pwa to breakpilot-core.
Container: bp-core-pitch-deck on port 3012.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pitch-deck/lib/hooks/useKeyboard.ts

@@ -0,0 +1,98 @@
+'use client'
+
+import { useEffect, useCallback } from 'react'
+
+interface UseKeyboardProps {
+  onNext: () => void
+  onPrev: () => void
+  onFirst: () => void
+  onLast: () => void
+  onOverview: () => void
+  onFullscreen: () => void
+  onLanguageToggle: () => void
+  onMenuToggle: () => void
+  onGoToSlide: (index: number) => void
+  enabled?: boolean
+}
+
+export function useKeyboard({
+  onNext,
+  onPrev,
+  onFirst,
+  onLast,
+  onOverview,
+  onFullscreen,
+  onLanguageToggle,
+  onMenuToggle,
+  onGoToSlide,
+  enabled = true,
+}: UseKeyboardProps) {
+  const handleKeyDown = useCallback(
+    (e: KeyboardEvent) => {
+      if (!enabled) return
+
+      const target = e.target as HTMLElement
+      if (target.tagName === 'INPUT' || target.tagName === 'TEXTAREA' || target.isContentEditable) {
+        return
+      }
+
+      switch (e.key) {
+        case 'ArrowRight':
+        case ' ':
+        case 'Enter':
+          e.preventDefault()
+          onNext()
+          break
+        case 'ArrowLeft':
+          e.preventDefault()
+          onPrev()
+          break
+        case 'Escape':
+          e.preventDefault()
+          onOverview()
+          break
+        case 'f':
+        case 'F':
+          e.preventDefault()
+          onFullscreen()
+          break
+        case 'Home':
+          e.preventDefault()
+          onFirst()
+          break
+        case 'End':
+          e.preventDefault()
+          onLast()
+          break
+        case 'l':
+        case 'L':
+          e.preventDefault()
+          onLanguageToggle()
+          break
+        case 'm':
+        case 'M':
+          e.preventDefault()
+          onMenuToggle()
+          break
+        case '1':
+        case '2':
+        case '3':
+        case '4':
+        case '5':
+        case '6':
+        case '7':
+        case '8':
+        case '9':
+          e.preventDefault()
+          onGoToSlide(parseInt(e.key) - 1)
+          break
+      }
+    },
+    [enabled, onNext, onPrev, onFirst, onLast, onOverview, onFullscreen, onLanguageToggle, onMenuToggle, onGoToSlide]
+  )
+
+  useEffect(() => {
+    window.addEventListener('keydown', handleKeyDown)
+    return () => window.removeEventListener('keydown', handleKeyDown)
+  }, [handleKeyDown])
+}