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/components/SlideContainer.tsx

@@ -0,0 +1,53 @@
+'use client'
+
+import { ReactNode } from 'react'
+import { motion, AnimatePresence } from 'framer-motion'
+
+interface SlideContainerProps {
+  children: ReactNode
+  slideKey: string
+  direction: number
+}
+
+const variants = {
+  enter: (direction: number) => ({
+    x: direction > 0 ? '30%' : '-30%',
+    opacity: 0,
+    scale: 0.95,
+  }),
+  center: {
+    x: 0,
+    opacity: 1,
+    scale: 1,
+  },
+  exit: (direction: number) => ({
+    x: direction < 0 ? '30%' : '-30%',
+    opacity: 0,
+    scale: 0.95,
+  }),
+}
+
+export default function SlideContainer({ children, slideKey, direction }: SlideContainerProps) {
+  return (
+    <AnimatePresence mode="wait" custom={direction}>
+      <motion.div
+        key={slideKey}
+        custom={direction}
+        variants={variants}
+        initial="enter"
+        animate="center"
+        exit="exit"
+        transition={{
+          x: { type: 'spring', stiffness: 300, damping: 30 },
+          opacity: { duration: 0.3 },
+          scale: { duration: 0.3 },
+        }}
+        className="absolute inset-0 flex items-center justify-center overflow-y-auto"
+      >
+        <div className="w-full max-w-6xl mx-auto px-6 py-12 md:py-16">
+          {children}
+        </div>
+      </motion.div>
+    </AnimatePresence>
+  )
+}