Fase 0: scaffold monorepo, SvelteKit skeleton, and dev infrastructure

- Turborepo + pnpm workspaces with apps/web and packages/types
- SvelteKit app: Tailwind, Paraglide i18n (en/es), keycloak-js, Supabase client,
  auth/collective stores, PWA service worker skeleton, all route placeholders
- packages/types: domain types (User, Collective, ShoppingList, etc.) and
  database.ts placeholder for generated types
- Justfile with dev, db-*, kc-*, build, backup, restore, deploy recipes
- infra/docker-compose.dev.yml: Postgres 15, GoTrue, PostgREST, Realtime v2.83,
  Storage, Kong (port 8001), Studio, Keycloak 24
- infra/docker-compose.prod.yml, kong.yml, db-init scripts, backup/deploy scripts
- keycloak/realm-export.json with colectivo realm and 5 dev test users
- supabase/config.toml and seed.sql with sample collective and items
- GitHub Actions: ci.yml (lint+typecheck+build) and deploy.yml (GHCR + SSH)
- .env.example documenting all required variables
- Fixed docker-compose issues: Studio image tag, Kong port conflict (8001),
  internal role passwords init script, Realtime METRICS_JWT_SECRET/APP_NAME

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

supabase/seed.sql

@@ -0,0 +1,60 @@
+-- seed.sql — development seed data
+-- Mirrors Keycloak test users (UUIDs must match realm-export.json)
+-- Password for all users: test1234
+
+-- ── Users ─────────────────────────────────────────────────────────────────────
+-- Inserted into the public.users table (synced from Keycloak via trigger in Fase 1)
+-- For Fase 0 we insert directly since the trigger isn't written yet.
+
+INSERT INTO public.users (id, email, display_name, language, avatar_type)
+VALUES
+  ('11111111-1111-1111-1111-111111111111', 'ana@dev.local',    'Ana García',      'es', 'initials'),
+  ('22222222-2222-2222-2222-222222222222', 'borja@dev.local',  'Borja López',     'es', 'initials'),
+  ('33333333-3333-3333-3333-333333333333', 'carmen@dev.local', 'Carmen Martínez', 'es', 'initials'),
+  ('44444444-4444-4444-4444-444444444444', 'david@dev.local',  'David Fernández', 'es', 'initials'),
+  ('55555555-5555-5555-5555-555555555555', 'eva@dev.local',    'Eva Ruiz',        'es', 'initials')
+ON CONFLICT (id) DO NOTHING;
+
+-- ── Sample collective ──────────────────────────────────────────────────────────
+INSERT INTO public.collectives (id, name, emoji, created_by)
+VALUES ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'Casa García-López', '🏠', '11111111-1111-1111-1111-111111111111')
+ON CONFLICT (id) DO NOTHING;
+
+-- ── Collective members ─────────────────────────────────────────────────────────
+-- Ana: admin, Borja: member, Carmen: member, David: guest
+-- Eva has no collective (for onboarding testing)
+INSERT INTO public.collective_members (collective_id, user_id, role)
+VALUES
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', '11111111-1111-1111-1111-111111111111', 'admin'),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', '22222222-2222-2222-2222-222222222222', 'member'),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', '33333333-3333-3333-3333-333333333333', 'member'),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', '44444444-4444-4444-4444-444444444444', 'guest')
+ON CONFLICT (collective_id, user_id) DO NOTHING;
+
+-- ── Sample shopping list ───────────────────────────────────────────────────────
+INSERT INTO public.shopping_lists (id, collective_id, name, status, created_by)
+VALUES ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'Weekly shop', 'active', '11111111-1111-1111-1111-111111111111')
+ON CONFLICT (id) DO NOTHING;
+
+INSERT INTO public.shopping_items (list_id, name, quantity, unit, sort_order, created_by)
+VALUES
+  ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', 'Milk',   2, 'L',   1, '11111111-1111-1111-1111-111111111111'),
+  ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', 'Bread',  1, NULL,  2, '22222222-2222-2222-2222-222222222222'),
+  ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', 'Eggs',   1, 'doz', 3, '11111111-1111-1111-1111-111111111111'),
+  ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', 'Coffee', 1, NULL,  4, '33333333-3333-3333-3333-333333333333'),
+  ('bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb', 'Apples', 6, NULL,  5, '22222222-2222-2222-2222-222222222222')
+ON CONFLICT DO NOTHING;
+
+-- ── Item frequency baseline (from pre-existing items above) ────────────────────
+INSERT INTO public.item_frequency (collective_id, name, use_count, last_used_at)
+VALUES
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'milk',   5, now()),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'bread',  4, now()),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'eggs',   3, now()),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'coffee', 3, now()),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'apples', 2, now()),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'butter', 2, now()),
+  ('aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'yogurt', 1, now())
+ON CONFLICT (collective_id, name) DO UPDATE SET
+  use_count = EXCLUDED.use_count,
+  last_used_at = EXCLUDED.last_used_at;