feat: seed categories

internal/db/migrations/00006_seed_categories.sql

@@ -0,0 +1,20 @@
+-- +goose Up
+-- +goose StatementBegin
+INSERT INTO categories (id, name, description) VALUES
+    ('housing',      'Housing',        'rent/mortgage, utilities, maintenance'),
+    ('food',         'Food',           'groceries and dining out'),
+    ('transport',    'Transport',      'fuel, transit, car payments, parking'),
+    ('health',       'Health',         'medical, pharmacy, gym'),
+    ('lifestyle',    'Lifestyle',      'entertainment, hobbies, subscriptions'),
+    ('shopping',     'Shopping',       'clothing, electronics, household goods'),
+    ('personal',     'Personal',       'haircuts, gifts, donations'),
+    ('savings_debt', 'Savings & Debt', 'loan payments, savings contributions');
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DELETE FROM categories WHERE id IN (
+    'housing', 'food', 'transport', 'health',
+    'lifestyle', 'shopping', 'personal', 'savings_debt'
+);
+-- +goose StatementEnd