feat(db): teams schema + preferences.mutable migration (#175)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/db/src/schema.ts

@@ -11,6 +11,7 @@ import {
   uuid,
   jsonb,
   index,
+  uniqueIndex,
   real,
   integer,
   customType,
@@ -72,6 +73,44 @@ export const verifications = pgTable('verifications', {
   updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
 });
 
+// ─── Teams ───────────────────────────────────────────────────────────────────
+// Declared before projects because projects references teams.
+
+export const teams = pgTable('teams', {
+  id: uuid('id').primaryKey().defaultRandom(),
+  name: text('name').notNull(),
+  slug: text('slug').notNull().unique(),
+  ownerId: text('owner_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'restrict' }),
+  managerId: text('manager_id')
+    .notNull()
+    .references(() => users.id, { onDelete: 'restrict' }),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
+});
+
+export const teamMembers = pgTable(
+  'team_members',
+  {
+    id: uuid('id').primaryKey().defaultRandom(),
+    teamId: uuid('team_id')
+      .notNull()
+      .references(() => teams.id, { onDelete: 'cascade' }),
+    userId: text('user_id')
+      .notNull()
+      .references(() => users.id, { onDelete: 'cascade' }),
+    role: text('role', { enum: ['manager', 'member'] })
+      .notNull()
+      .default('member'),
+    invitedBy: text('invited_by').references(() => users.id, { onDelete: 'set null' }),
+    joinedAt: timestamp('joined_at', { withTimezone: true }).notNull().defaultNow(),
+  },
+  (t) => ({
+    uniq: uniqueIndex('team_members_team_user_idx').on(t.teamId, t.userId),
+  }),
+);
+
 // ─── Brain ───────────────────────────────────────────────────────────────────
 // Declared before Chat because conversations references projects.
 
@@ -83,6 +122,10 @@ export const projects = pgTable('projects', {
     .notNull()
     .default('active'),
   ownerId: text('owner_id').references(() => users.id, { onDelete: 'set null' }),
+  teamId: uuid('team_id').references(() => teams.id, { onDelete: 'cascade' }),
+  ownerType: text('owner_type', { enum: ['user', 'team'] })
+    .notNull()
+    .default('user'),
   metadata: jsonb('metadata'),
   createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
   updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
@@ -320,6 +363,7 @@ export const preferences = pgTable(
       .notNull()
       .default('general'),
     source: text('source'),
+    mutable: boolean('mutable').notNull().default(true),
     createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
     updatedAt: timestamp('updated_at', { withTimezone: true }).notNull().defaultNow(),
   },