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.

backend/internal/api/report.go

@@ -0,0 +1,52 @@
+package api
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/go-chi/chi/v5"
+)
+
+// BuildReport serves POST /api/report/:ticker?format=json|html|pdf|md.
+// Runs A1..A6 + A7 live over stored snapshots, persists, and renders.
+func (s *Server) BuildReport(w http.ResponseWriter, r *http.Request) {
+	ticker := strings.ToUpper(chi.URLParam(r, "ticker"))
+	if len(ticker) < 3 || len(ticker) > 6 {
+		writeErr(w, http.StatusUnprocessableEntity, "ticker must be 3-6 letters")
+		return
+	}
+	profile := r.URL.Query().Get("profile")
+	if profile == "" {
+		profile = "moderate"
+	}
+	rep, id, err := s.Builder.Build(r.Context(), ticker, profile)
+	if err != nil {
+		writeErr(w, http.StatusBadGateway, "report: "+err.Error())
+		return
+	}
+	_ = id
+	switch strings.ToLower(r.URL.Query().Get("format")) {
+	case "html":
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(rep.ToHTML()))
+	case "md":
+		w.Header().Set("Content-Type", "text/markdown; charset=utf-8")
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write([]byte(rep.ToMarkdown()))
+	case "pdf":
+		raw, err := rep.ToPDF()
+		if err != nil {
+			writeErr(w, http.StatusBadGateway, "pdf: "+err.Error())
+			return
+		}
+		w.Header().Set("Content-Type", "application/pdf")
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write(raw)
+	default:
+		writeJSON(w, http.StatusOK, rep)
+	}
+	// Push a live agent-panel event for the dashboard SSE feed.
+	s.Hub.Publish("agents", `{"ticker":"`+ticker+`","recommendation":"`+
+		rep.Synthesis.Recommendation+`"}`)
+}