feat(onboarding): skippable avatar with first-match prompt and usage-reason pack picks

Lets new users skip the onboarding avatar step and instead defers the ask
to a lightweight, dismissible prompt shown once after the couple's first
match. Also personalizes the home screen's first pack recommendation using
the usage_reason already collected during onboarding, which now round-trips
through GET /v1/me.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/api/src/db/repository.ts

@@ -32,6 +32,7 @@ function toProfile(row: ProfileRow): MobileCompatibleProfile {
     is_premium: row.isPremium,
     couple_id: row.coupleId,
     gender: row.gender,
+    usage_reason: row.usageReason,
     show_explicit_content: row.showExplicitContent,
     max_intensity: row.maxIntensity as 1 | 2 | 3 | 4 | 5,
     created_at: row.createdAt.toISOString(),

apps/api/src/db/schema.ts

@@ -10,6 +10,9 @@ export const profiles = pgTable('profiles', {
   isPremium: boolean('is_premium').notNull().default(false),
   coupleId: uuid('couple_id'),
   gender: text('gender').$type<'male' | 'female' | 'non-binary' | 'prefer-not-to-say' | null>(),
+  usageReason: text('usage_reason').$type<
+    'improve_communication' | 'reconnect' | 'spice_up_intimacy' | 'deeper_connection' | 'have_fun' | 'strengthen_relationship' | null
+  >(),
   showExplicitContent: boolean('show_explicit_content').notNull().default(true),
   maxIntensity: integer('max_intensity').notNull().default(5),
   publicKeyJwk: jsonb('public_key_jwk').$type<Record<string, unknown> | null>(),