feat: add component_types management functionality

db/queries/component_type.sql

@@ -0,0 +1,30 @@
+-- name: GetComponentTypeByID :one
+SELECT * FROM component_types
+WHERE id = sqlc.arg(id);
+
+-- name: ListComponentTypes :many
+SELECT * FROM component_types
+ORDER BY created_at DESC;
+
+-- name: CreateComponentType :one
+INSERT INTO component_types (name, description,metadata, created_at)
+VALUES (
+    sqlc.arg(name),
+    sqlc.arg(description),
+    sqlc.arg(metadata),
+    sqlc.arg(created_at)
+)
+RETURNING *;
+
+-- name: UpdateComponentType :one
+UPDATE component_types
+SET name = CASE WHEN sqlc.arg(name) = '' THEN name ELSE sqlc.arg(name) END,
+    description = coalesce(sqlc.arg(description), description),
+    metadata = coalesce(sqlc.arg(metadata), metadata),
+    updated_at = sqlc.arg(updated_at)
+WHERE id = sqlc.arg(id)
+RETURNING *;
+
+-- name: DeleteComponentType :execrows
+DELETE FROM component_types
+WHERE id = sqlc.arg(id);