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/SlideOverview.tsx

@@ -0,0 +1,56 @@
+'use client'
+
+import { motion } from 'framer-motion'
+import { Language } from '@/lib/types'
+import { t } from '@/lib/i18n'
+
+interface SlideOverviewProps {
+  currentIndex: number
+  onGoToSlide: (index: number) => void
+  onClose: () => void
+  lang: Language
+}
+
+export default function SlideOverview({ currentIndex, onGoToSlide, onClose, lang }: SlideOverviewProps) {
+  const i = t(lang)
+
+  return (
+    <motion.div
+      initial={{ opacity: 0 }}
+      animate={{ opacity: 1 }}
+      exit={{ opacity: 0 }}
+      className="fixed inset-0 z-50 bg-black/90 backdrop-blur-sm flex items-center justify-center p-8"
+      onClick={onClose}
+    >
+      <motion.div
+        initial={{ scale: 0.9, opacity: 0 }}
+        animate={{ scale: 1, opacity: 1 }}
+        className="grid grid-cols-3 md:grid-cols-4 lg:grid-cols-5 gap-3 max-w-5xl w-full"
+        onClick={(e) => e.stopPropagation()}
+      >
+        {i.slideNames.map((name, idx) => (
+          <motion.button
+            key={idx}
+            initial={{ opacity: 0, y: 20 }}
+            animate={{ opacity: 1, y: 0 }}
+            transition={{ delay: idx * 0.03 }}
+            onClick={() => onGoToSlide(idx)}
+            className={`
+              aspect-video rounded-xl p-4 text-left
+              border transition-all
+              ${idx === currentIndex
+                ? 'bg-indigo-500/20 border-indigo-500 shadow-lg shadow-indigo-500/20'
+                : 'bg-white/[0.05] border-white/10 hover:bg-white/[0.1] hover:border-white/20'
+              }
+            `}
+          >
+            <span className="text-xs font-mono text-white/40 block mb-1">{idx + 1}</span>
+            <span className={`text-sm font-medium ${idx === currentIndex ? 'text-white' : 'text-white/70'}`}>
+              {name}
+            </span>
+          </motion.button>
+        ))}
+      </motion.div>
+    </motion.div>
+  )
+}