feat(10-01): add CRM schema foundation with migration

Phase 10 Plan 1: Schema, validators, and query layer for CRM leads + activities + reminders

Schema Changes:
- Expand leads table: +phone, company, status (6 pipeline stages), last_contact_date, next_action, next_action_date, notes, updated_at
- Add activities table: immutable interaction history (call/email/meeting/note)
- Add reminders table: follow-up scheduling with due dates
- Relations: leads ↔ activities, leads ↔ reminders (cascade delete)
- Indexes: on status, last_contact_date, activity_date, due_date for query performance

Validators (lead-validators.ts):
- LEAD_STAGES enum: contacted → qualified → proposal_sent → negotiating → won → lost
- ACTIVITY_TYPES enum: call, email, meeting, note
- 5 Zod schemas: createLead, updateLead, createActivity, createReminder, updateLeadStage
- Italian error messages

Service Layer (lead-service.ts):
- 14 query functions: getAllLeads, getLeadById, getLeadsByStage, getLeadsNeedingFollowUp
- Activity: getActivityLog, createActivity (with auto-update of last_contact_date)
- Reminders: getUpcomingReminders, getOverdueReminders, createReminder, completeReminder
- Utilities: searchLeads, updateLead, updateLeadStage, getQuotesByLeadId

Migration:
- 0005_phase_10_crm_leads_activities_reminders.sql: ALTER leads + CREATE activities + CREATE reminders
- Additive-only (backward compatible)
- Indexes created for performance

TypeScript:
- Activity, NewActivity, Reminder, NewReminder types exported
- Full type safety throughout

Build: npm run build PASSED (0 errors)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/db/migrations/0005_phase_10_crm_leads_activities_reminders.sql

@@ -0,0 +1,43 @@
+-- Phase 10: CRM Foundation - Expand leads table, add activities and reminders
+
+-- ============ ALTER leads TABLE ============
+ALTER TABLE "leads" ADD COLUMN "phone" text;
+ALTER TABLE "leads" ADD COLUMN "company" text;
+ALTER TABLE "leads" ADD COLUMN "status" text NOT NULL DEFAULT 'contacted';
+ALTER TABLE "leads" ADD COLUMN "last_contact_date" timestamp with time zone;
+ALTER TABLE "leads" ADD COLUMN "next_action" text;
+ALTER TABLE "leads" ADD COLUMN "next_action_date" timestamp with time zone;
+ALTER TABLE "leads" ADD COLUMN "notes" text;
+ALTER TABLE "leads" ADD COLUMN "updated_at" timestamp with time zone NOT NULL DEFAULT now();
+
+-- ============ CREATE activities TABLE ============
+CREATE TABLE IF NOT EXISTS "activities" (
+	"id" text PRIMARY KEY NOT NULL,
+	"lead_id" text NOT NULL,
+	"type" text NOT NULL,
+	"duration_minutes" integer,
+	"notes" text NOT NULL,
+	"activity_date" timestamp with time zone NOT NULL,
+	"created_at" timestamp with time zone NOT NULL DEFAULT now(),
+	FOREIGN KEY ("lead_id") REFERENCES "leads"("id") ON DELETE cascade
+);
+
+-- ============ CREATE reminders TABLE ============
+CREATE TABLE IF NOT EXISTS "reminders" (
+	"id" text PRIMARY KEY NOT NULL,
+	"lead_id" text NOT NULL,
+	"title" text NOT NULL,
+	"description" text,
+	"due_date" timestamp with time zone NOT NULL,
+	"completed_at" timestamp with time zone,
+	"created_at" timestamp with time zone NOT NULL DEFAULT now(),
+	FOREIGN KEY ("lead_id") REFERENCES "leads"("id") ON DELETE cascade
+);
+
+-- ============ CREATE INDEXES ============
+CREATE INDEX IF NOT EXISTS "activities_lead_id" ON "activities"("lead_id");
+CREATE INDEX IF NOT EXISTS "activities_activity_date" ON "activities"("activity_date");
+CREATE INDEX IF NOT EXISTS "reminders_lead_id" ON "reminders"("lead_id");
+CREATE INDEX IF NOT EXISTS "reminders_due_date" ON "reminders"("due_date");
+CREATE INDEX IF NOT EXISTS "leads_status" ON "leads"("status");
+CREATE INDEX IF NOT EXISTS "leads_last_contact_date" ON "leads"("last_contact_date");

src/db/schema.ts

@@ -362,14 +362,62 @@ export const quotes = pgTable("quotes", {
     .defaultNow(),
 });
 
-// ============ LEADS TABLE (CRM — Phase 10, but needed for quotes FK) ============
-// Placeholder table for Phase 10 CRM integration
+// ============ LEADS TABLE (CRM — Phase 10) ============
 export const leads = pgTable("leads", {
   id: text("id")
     .primaryKey()
     .$defaultFn(() => nanoid()),
   name: text("name").notNull(),
   email: text("email"),
+  phone: text("phone"),
+  company: text("company"),
+  status: text("status")
+    .notNull()
+    .default("contacted"), // contacted | qualified | proposal_sent | negotiating | won | lost
+  last_contact_date: timestamp("last_contact_date", { withTimezone: true }),
+  next_action: text("next_action"),
+  next_action_date: timestamp("next_action_date", { withTimezone: true }),
+  notes: text("notes"),
+  created_at: timestamp("created_at", { withTimezone: true })
+    .notNull()
+    .defaultNow(),
+  updated_at: timestamp("updated_at", { withTimezone: true })
+    .notNull()
+    .defaultNow(),
+});
+
+// ============ ACTIVITIES TABLE (CRM interaction history) ============
+export const activities = pgTable("activities", {
+  id: text("id")
+    .primaryKey()
+    .$defaultFn(() => nanoid()),
+  lead_id: text("lead_id")
+    .notNull()
+    .references(() => leads.id, { onDelete: "cascade" }),
+  type: text("type")
+    .notNull(), // call | email | meeting | note
+  duration_minutes: integer("duration_minutes"),
+  notes: text("notes").notNull(),
+  activity_date: timestamp("activity_date", { withTimezone: true })
+    .notNull(),
+  created_at: timestamp("created_at", { withTimezone: true })
+    .notNull()
+    .defaultNow(),
+});
+
+// ============ REMINDERS TABLE (CRM follow-up reminders) ============
+export const reminders = pgTable("reminders", {
+  id: text("id")
+    .primaryKey()
+    .$defaultFn(() => nanoid()),
+  lead_id: text("lead_id")
+    .notNull()
+    .references(() => leads.id, { onDelete: "cascade" }),
+  title: text("title").notNull(),
+  description: text("description"),
+  due_date: timestamp("due_date", { withTimezone: true })
+    .notNull(),
+  completed_at: timestamp("completed_at", { withTimezone: true }),
   created_at: timestamp("created_at", { withTimezone: true })
     .notNull()
     .defaultNow(),
@@ -497,6 +545,16 @@ export const offerPhaseServicesRelations = relations(offer_phase_services, ({ on
 
 export const leadsRelations = relations(leads, ({ many }) => ({
   quotes: many(quotes),
+  activities: many(activities),
+  reminders: many(reminders),
+}));
+
+export const activitiesRelations = relations(activities, ({ one }) => ({
+  lead: one(leads, { fields: [activities.lead_id], references: [leads.id] }),
+}));
+
+export const remindersRelations = relations(reminders, ({ one }) => ({
+  lead: one(leads, { fields: [reminders.lead_id], references: [leads.id] }),
 }));
 
 export const quotesRelations = relations(quotes, ({ one, many }) => ({
@@ -554,3 +612,7 @@ export type Quote = typeof quotes.$inferSelect;
 export type NewQuote = typeof quotes.$inferInsert;
 export type Lead = typeof leads.$inferSelect;
 export type NewLead = typeof leads.$inferInsert;
+export type Activity = typeof activities.$inferSelect;
+export type NewActivity = typeof activities.$inferInsert;
+export type Reminder = typeof reminders.$inferSelect;
+export type NewReminder = typeof reminders.$inferInsert;

src/lib/lead-service.ts

@@ -0,0 +1,211 @@
+import { eq, and, isNull, desc, gte, lte, ilike, or } from "drizzle-orm";
+import { db } from "@/db";
+import { leads, activities, reminders, quotes } from "@/db/schema";
+
+// Get all leads
+export async function getAllLeads(limit: number = 100, offset: number = 0) {
+  return await db
+    .select()
+    .from(leads)
+    .orderBy(desc(leads.updated_at))
+    .limit(limit)
+    .offset(offset);
+}
+
+// Get lead by ID
+export async function getLeadById(id: string) {
+  const [lead] = await db
+    .select()
+    .from(leads)
+    .where(eq(leads.id, id));
+  return lead;
+}
+
+// Get leads by stage
+export async function getLeadsByStage(stage: string) {
+  return await db
+    .select()
+    .from(leads)
+    .where(eq(leads.status, stage))
+    .orderBy(desc(leads.last_contact_date));
+}
+
+// Get leads needing follow-up
+export async function getLeadsNeedingFollowUp(daysAgo: number = 7) {
+  const cutoffDate = new Date();
+  cutoffDate.setDate(cutoffDate.getDate() - daysAgo);
+
+  return await db
+    .select()
+    .from(leads)
+    .where(
+      or(
+        isNull(leads.last_contact_date),
+        lte(leads.last_contact_date, cutoffDate)
+      )
+    )
+    .orderBy(leads.created_at);
+}
+
+// Get activity log
+export async function getActivityLog(leadId: string) {
+  return await db
+    .select()
+    .from(activities)
+    .where(eq(activities.lead_id, leadId))
+    .orderBy(desc(activities.activity_date));
+}
+
+// Get upcoming reminders
+export async function getUpcomingReminders(leadId: string) {
+  return await db
+    .select()
+    .from(reminders)
+    .where(and(eq(reminders.lead_id, leadId), isNull(reminders.completed_at)))
+    .orderBy(reminders.due_date);
+}
+
+// Get overdue reminders
+export async function getOverdueReminders() {
+  const now = new Date();
+  return await db
+    .select()
+    .from(reminders)
+    .where(and(lte(reminders.due_date, now), isNull(reminders.completed_at)))
+    .orderBy(reminders.due_date);
+}
+
+// Create activity and auto-update last_contact_date
+export async function createActivity(data: {
+  lead_id: string;
+  type: string;
+  activity_date: Date | string;
+  duration_minutes?: number;
+  notes: string;
+}) {
+  const activityDate =
+    typeof data.activity_date === "string"
+      ? new Date(data.activity_date)
+      : data.activity_date;
+
+  const [activity] = await db
+    .insert(activities)
+    .values({
+      lead_id: data.lead_id,
+      type: data.type,
+      activity_date: activityDate,
+      duration_minutes: data.duration_minutes,
+      notes: data.notes,
+    })
+    .returning();
+
+  // Auto-update lead.last_contact_date
+  await db
+    .update(leads)
+    .set({ last_contact_date: activityDate, updated_at: new Date() })
+    .where(eq(leads.id, data.lead_id));
+
+  return activity;
+}
+
+// Update lead stage
+export async function updateLeadStage(leadId: string, stage: string) {
+  const [updated] = await db
+    .update(leads)
+    .set({ status: stage, updated_at: new Date() })
+    .where(eq(leads.id, leadId))
+    .returning();
+  return updated;
+}
+
+// Update lead
+export async function updateLead(
+  leadId: string,
+  data: Partial<{
+    name: string;
+    email: string;
+    phone: string;
+    company: string;
+    notes: string;
+    next_action: string;
+    next_action_date: Date | string;
+  }>
+) {
+  const updateData: Record<string, any> = { updated_at: new Date() };
+
+  if (data.name !== undefined) updateData.name = data.name;
+  if (data.email !== undefined) updateData.email = data.email;
+  if (data.phone !== undefined) updateData.phone = data.phone;
+  if (data.company !== undefined) updateData.company = data.company;
+  if (data.notes !== undefined) updateData.notes = data.notes;
+  if (data.next_action !== undefined) updateData.next_action = data.next_action;
+  if (data.next_action_date !== undefined) {
+    updateData.next_action_date =
+      typeof data.next_action_date === "string"
+        ? new Date(data.next_action_date)
+        : data.next_action_date;
+  }
+
+  const [updated] = await db
+    .update(leads)
+    .set(updateData)
+    .where(eq(leads.id, leadId))
+    .returning();
+  return updated;
+}
+
+// Search leads
+export async function searchLeads(query: string) {
+  return await db
+    .select()
+    .from(leads)
+    .where(
+      or(
+        ilike(leads.name, `%${query}%`),
+        ilike(leads.email, `%${query}%`),
+        ilike(leads.company, `%${query}%`)
+      )
+    )
+    .orderBy(desc(leads.updated_at));
+}
+
+// Create reminder
+export async function createReminder(data: {
+  lead_id: string;
+  title: string;
+  description?: string;
+  due_date: Date | string;
+}) {
+  const dueDate =
+    typeof data.due_date === "string" ? new Date(data.due_date) : data.due_date;
+
+  const [reminder] = await db
+    .insert(reminders)
+    .values({
+      lead_id: data.lead_id,
+      title: data.title,
+      description: data.description,
+      due_date: dueDate,
+    })
+    .returning();
+  return reminder;
+}
+
+// Complete reminder
+export async function completeReminder(reminderId: string) {
+  const [updated] = await db
+    .update(reminders)
+    .set({ completed_at: new Date() })
+    .where(eq(reminders.id, reminderId))
+    .returning();
+  return updated;
+}
+
+// Get quotes by lead
+export async function getQuotesByLeadId(leadId: string) {
+  return await db
+    .select()
+    .from(quotes)
+    .where(eq(quotes.lead_id, leadId))
+    .orderBy(desc(quotes.created_at));
+}

src/lib/lead-validators.ts

@@ -0,0 +1,56 @@
+import { z } from "zod";
+
+// Pipeline stages
+export const LEAD_STAGES = [
+  "contacted",
+  "qualified",
+  "proposal_sent",
+  "negotiating",
+  "won",
+  "lost",
+] as const;
+
+export const ACTIVITY_TYPES = ["call", "email", "meeting", "note"] as const;
+
+// Lead creation
+export const createLeadSchema = z.object({
+  name: z.string().min(1, "Nome richiesto").max(100),
+  email: z.string().email("Email valida").optional().or(z.literal("")),
+  phone: z.string().optional().or(z.literal("")),
+  company: z.string().optional().or(z.literal("")),
+  status: z.enum(LEAD_STAGES).default("contacted"),
+  notes: z.string().optional().or(z.literal("")),
+});
+
+// Lead update
+export const updateLeadSchema = createLeadSchema.partial();
+
+// Activity logging
+export const createActivitySchema = z.object({
+  lead_id: z.string().min(1, "Lead richiesto"),
+  type: z.enum(ACTIVITY_TYPES),
+  activity_date: z.date().or(z.string()),
+  duration_minutes: z.number().min(0).optional(),
+  notes: z.string().min(1, "Note richieste").max(1000),
+});
+
+// Reminder creation
+export const createReminderSchema = z.object({
+  lead_id: z.string().min(1, "Lead richiesto"),
+  title: z.string().min(1, "Titolo richiesto").max(200),
+  description: z.string().optional(),
+  due_date: z.date().or(z.string()),
+});
+
+// Update lead stage
+export const updateLeadStageSchema = z.object({
+  lead_id: z.string().min(1),
+  stage: z.enum(LEAD_STAGES),
+});
+
+// Type exports
+export type CreateLeadInput = z.infer<typeof createLeadSchema>;
+export type UpdateLeadInput = z.infer<typeof updateLeadSchema>;
+export type CreateActivityInput = z.infer<typeof createActivitySchema>;
+export type CreateReminderInput = z.infer<typeof createReminderSchema>;
+export type UpdateLeadStageInput = z.infer<typeof updateLeadStageSchema>;