setup supabase and dev QoL features

supabase/migrations/20260821135107_create_budget_tables.sql

@@ -0,0 +1,21 @@
+create table months (
+  id uuid primary key default gen_random_uuid(),
+  label text not null,
+  snapshot jsonb not null,
+  created_at timestamptz not null default now()
+);
+
+create table budget_entries (
+  id uuid primary key default gen_random_uuid(),
+  type text not null check (type in ('revenue', 'investments', 'mandatory', 'personal')),
+  label text not null,
+  amount numeric not null,
+  month_id uuid references months(id) on delete set null,
+  created_at timestamptz not null default now()
+);
+
+alter table budget_entries enable row level security;
+alter table months enable row level security;
+
+create policy "Allow all" on budget_entries for all using (true);
+create policy "Allow all" on months for all using (true);