feat: offer badges, unified dashboard, income forecast, Pipedrive-style follow-up

- Client detail: category + tier badges on active offers
- Dashboard: remove top KPI cards + recent activity; fold current KPIs into
  bottom MetricCard style; add 12-month income forecast chart
- Forecast query: branch by offer_type (retainer = monthly fee, una_tantum =
  spread over duration), filter archived projects
- Payments: set the month a payment was collected (paid_at) from PaymentsTab
- Redesign FollowUpWidget in clean Pipedrive style (brand green, no orange)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/lib/dashboard-queries.ts

@@ -1,6 +1,6 @@
 import { db } from "@/db";
-import { clients, projects, payments, deliverables, time_entries } from "@/db/schema";
-import { eq, and, isNotNull, isNull, desc, sum, count } from "drizzle-orm";
+import { clients, projects, payments } from "@/db/schema";
+import { eq, sum, count } from "drizzle-orm";
 
 export type KpiStats = {
   clientiAttivi: number;
@@ -9,16 +9,8 @@ export type KpiStats = {
   progettiInCorso: number;     // projects not archived
 };
 
-export type ActivityItem = {
-  type: "nuovo_cliente" | "nuovo_progetto" | "deliverable_approvato" | "timer_stoppato";
-  label: string;
-  detail: string;
-  timestamp: Date;
-};
-
 export type DashboardStats = {
   kpi: KpiStats;
-  activity: ActivityItem[];
 };
 
 export async function getDashboardStats(): Promise<DashboardStats> {
@@ -59,80 +51,5 @@ export async function getDashboardStats(): Promise<DashboardStats> {
     progettiInCorso: progettiRow?.count ?? 0,
   };
 
-  // ── Activity feed ─────────────────────────────────────────────────────────────
-  // Fetch recent events from multiple tables, merge and sort
-  const [recentClients, recentProjects, recentApprovals, recentTimers] = await Promise.all([
-    db
-      .select({ id: clients.id, name: clients.name, created_at: clients.created_at })
-      .from(clients)
-      .orderBy(desc(clients.created_at))
-      .limit(5),
-
-    db
-      .select({ id: projects.id, name: projects.name, created_at: projects.created_at })
-      .from(projects)
-      .orderBy(desc(projects.created_at))
-      .limit(5),
-
-    db
-      .select({ id: deliverables.id, title: deliverables.title, approved_at: deliverables.approved_at })
-      .from(deliverables)
-      .where(isNotNull(deliverables.approved_at))
-      .orderBy(desc(deliverables.approved_at))
-      .limit(5),
-
-    db
-      .select({
-        id: time_entries.id,
-        ended_at: time_entries.ended_at,
-        duration_seconds: time_entries.duration_seconds,
-      })
-      .from(time_entries)
-      .where(
-        and(
-          isNotNull(time_entries.ended_at),
-          isNotNull(time_entries.duration_seconds)
-        )
-      )
-      .orderBy(desc(time_entries.ended_at))
-      .limit(5),
-  ]);
-
-  const activity: ActivityItem[] = [
-    ...recentClients.map((c) => ({
-      type: "nuovo_cliente" as const,
-      label: "Nuovo cliente",
-      detail: c.name,
-      timestamp: c.created_at,
-    })),
-    ...recentProjects.map((p) => ({
-      type: "nuovo_progetto" as const,
-      label: "Nuovo progetto",
-      detail: p.name,
-      timestamp: p.created_at,
-    })),
-    ...recentApprovals
-      .filter((d): d is typeof d & { approved_at: Date } => d.approved_at !== null)
-      .map((d) => ({
-        type: "deliverable_approvato" as const,
-        label: "Deliverable approvato",
-        detail: d.title,
-        timestamp: d.approved_at,
-      })),
-    ...recentTimers
-      .filter(
-        (t): t is typeof t & { ended_at: Date; duration_seconds: number } =>
-          t.ended_at !== null && t.duration_seconds !== null
-      )
-      .map((t) => ({
-        type: "timer_stoppato" as const,
-        label: "Timer stoppato",
-        detail: `${Math.round(t.duration_seconds / 60)} min`,
-        timestamp: t.ended_at,
-      })),
-  ]
-    .sort((a, b) => b.timestamp.getTime() - a.timestamp.getTime())
-    .slice(0, 10);
-
-  return { kpi, activity };
+  return { kpi };
 }