feat: add Citations and WatchlistChat components, integrate with API

- Implemented Citations component to display citation data.
- Created WatchlistDrawer and ChatSidebar components for managing watchlists and AI chat functionality.
- Integrated API calls for watchlist management and chat interactions.
- Updated index.tsx to include new components in the main application layout.
- Added API client in lib/api.ts for structured API interactions.
- Developed Alerts, Dashboard, Portfolio, Routines, Screener, and Report pages with relevant data fetching and UI components.
- Introduced styles in tokens.css for consistent theming across the application.
- Configured TypeScript and Vite for project setup and development.

scripts/demo.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+# FlowSight offline demo: briefing -> radar alert -> report -> interrogation.
+set -e
+BASE="${BASE:-http://localhost:8080}"
+echo "== health ==";        curl -s "$BASE/api/health" | head -c 300; echo
+echo "== briefing ==";      curl -s "$BASE/api/briefing/today" | head -c 300; echo
+echo "== radar ==";         curl -s -X POST "$BASE/api/screen" -d '{"limit":3}' | head -c 300; echo
+echo "== report ==";        curl -s -X POST "$BASE/api/report/BBCA?profile=moderate" | head -c 300; echo
+echo "== interrogation =="; curl -s -X POST "$BASE/api/report/BBCA/ask" -d '{"question":"kenapa conviction segitu?"}' | head -c 300; echo
+echo DEMO_OK