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/alerts/rules_test.go

@@ -0,0 +1,76 @@
+package alerts
+
+import "testing"
+
+// Accumulation fixture: 3 brokers net-buy + 1.6x volume fires.
+func TestAccumulationFires(t *testing.T) {
+	nets := map[string]float64{"MG": 5e11, "AK": 4e11, "CC": 3e11, "BK": -1e11}
+	f, ok := Accumulation("BBCA", nets, 1.6)
+	if !ok {
+		t.Fatal("want accumulation fire")
+	}
+	if f.Rule != RuleAccumulation {
+		t.Fatalf("rule = %s", f.Rule)
+	}
+}
+
+func TestAccumulationSilent(t *testing.T) {
+	nets := map[string]float64{"MG": 5e11, "BK": -4e11}
+	if _, ok := Accumulation("BBCA", nets, 1.1); ok {
+		t.Fatal("want silence: only 1 net-buy broker, low volume")
+	}
+}
+
+// Foreign reversal: 5d outflow then strong inflow fires.
+func TestForeignReversal(t *testing.T) {
+	last6 := []float64{-1e11, -1e11, -1e11, -1e11, -1e11, 3.4e11}
+	if _, ok := ForeignReversal("BBCA", last6); !ok {
+		t.Fatal("want reversal fire")
+	}
+	if _, ok := ForeignReversal("BBCA", []float64{1e11, 1e11}); ok {
+		t.Fatal("want silence on short series")
+	}
+}
+
+// Insider spike both paths.
+func TestInsiderSpike(t *testing.T) {
+	if _, ok := InsiderSpike("BBCA", 3e6, 1e6, 1); !ok {
+		t.Fatal("want volume-path fire")
+	}
+	if _, ok := InsiderSpike("BBCA", 0, 0, 3); !ok {
+		t.Fatal("want cluster-path fire")
+	}
+	if _, ok := InsiderSpike("BBCA", 1e6, 1e6, 1); ok {
+		t.Fatal("want silence")
+	}
+}
+
+// Unusual volume suppressed on earnings dates.
+func TestUnusualVolume(t *testing.T) {
+	if _, ok := UnusualVolume("BBCA", "2026-09-11", 3.2, false); !ok {
+		t.Fatal("want fire")
+	}
+	if _, ok := UnusualVolume("BBCA", "2026-09-11", 3.2, true); ok {
+		t.Fatal("want silence on earnings date")
+	}
+}
+
+// Rotation sign flip.
+func TestRotation(t *testing.T) {
+	if _, ok := SectorRotation("consumer", -3e8, 1.1e9); !ok {
+		t.Fatal("want rotation fire")
+	}
+	if _, ok := SectorRotation("banks", 1e9, 2e9); ok {
+		t.Fatal("want silence without flip")
+	}
+}
+
+// Suspension watch: watchlist fires, others silent.
+func TestSuspension(t *testing.T) {
+	if _, ok := SuspensionWatch("TLKM", "2026-09-10", "volatilitas", true); !ok {
+		t.Fatal("want fire on watchlist")
+	}
+	if _, ok := SuspensionWatch("TLKM", "2026-09-10", "volatilitas", false); ok {
+		t.Fatal("want silence off-watchlist")
+	}
+}