feat: add feedback checkins exam dates

supabase/migrations/202606290004_feedback_checkins_exam_dates.sql

@@ -0,0 +1,95 @@
+alter table public.exam_dates
+  add column if not exists description text,
+  add column if not exists metadata jsonb not null default '{}'::jsonb;
+
+alter table public.reports
+  add column if not exists title text,
+  add column if not exists category text,
+  add column if not exists priority text not null default 'normal'
+    check (priority in ('low', 'normal', 'high', 'urgent')),
+  add column if not exists handled_by uuid references public.platform_users(id) on delete set null,
+  add column if not exists handled_at timestamptz,
+  add column if not exists resolution text,
+  add column if not exists contact text,
+  add column if not exists attachments jsonb not null default '[]'::jsonb,
+  add column if not exists metadata jsonb not null default '{}'::jsonb;
+
+do $$
+begin
+  if not exists (select 1 from pg_constraint where conname = 'reports_status_check') then
+    alter table public.reports
+      add constraint reports_status_check
+      check (status in ('pending', 'accepted', 'rejected', 'resolved', 'closed'));
+  end if;
+
+  if not exists (select 1 from pg_constraint where conname = 'reports_type_check') then
+    alter table public.reports
+      add constraint reports_type_check
+      check (type is null or type in ('question_error', 'content_error', 'video_error', 'asset_error', 'system_bug', 'suggestion', 'other'));
+  end if;
+end $$;
+
+create table if not exists public.report_status_events (
+  id uuid primary key default gen_random_uuid(),
+  tenant_id uuid not null references public.tenants(id) on delete cascade,
+  report_id uuid not null references public.reports(id) on delete cascade,
+  from_status text,
+  to_status text not null,
+  note text,
+  actor_user_id uuid references public.platform_users(id) on delete set null,
+  metadata jsonb not null default '{}'::jsonb,
+  created_at timestamptz not null default now()
+);
+
+comment on table public.report_status_events is
+  'Audit timeline for student feedback/question correction status changes.';
+
+create table if not exists public.user_score_events (
+  id uuid primary key default gen_random_uuid(),
+  tenant_id uuid not null references public.tenants(id) on delete cascade,
+  user_id uuid not null references public.platform_users(id) on delete cascade,
+  event_type text not null
+    check (event_type in ('check_in', 'manual_adjust', 'feedback_reward', 'activity_reward', 'redeem_cost')),
+  points integer not null,
+  balance_after integer not null,
+  source_type text,
+  source_id uuid,
+  idempotency_key text,
+  metadata jsonb not null default '{}'::jsonb,
+  created_at timestamptz not null default now(),
+  unique (tenant_id, idempotency_key)
+);
+
+comment on table public.user_score_events is
+  'Tenant-scoped student score ledger. Positive points add score, negative points consume score.';
+
+create index if not exists idx_reports_tenant_status
+  on public.reports(tenant_id, status, created_at desc);
+
+create index if not exists idx_reports_tenant_question
+  on public.reports(tenant_id, question_id, created_at desc)
+  where question_id is not null;
+
+create index if not exists idx_report_status_events_report
+  on public.report_status_events(tenant_id, report_id, created_at desc);
+
+create index if not exists idx_score_events_user
+  on public.user_score_events(tenant_id, user_id, created_at desc);
+
+create index if not exists idx_exam_dates_tenant_school
+  on public.exam_dates(tenant_id, school_id, exam_date);
+
+alter table public.report_status_events enable row level security;
+alter table public.user_score_events enable row level security;
+
+drop policy if exists tenant_isolation on public.report_status_events;
+create policy tenant_isolation on public.report_status_events
+  for all
+  using (tenant_id = app.current_tenant_id() or app.is_platform_admin())
+  with check (tenant_id = app.current_tenant_id() or app.is_platform_admin());
+
+drop policy if exists tenant_isolation on public.user_score_events;
+create policy tenant_isolation on public.user_score_events
+  for all
+  using (tenant_id = app.current_tenant_id() or app.is_platform_admin())
+  with check (tenant_id = app.current_tenant_id() or app.is_platform_admin());