feat: update repo with group, roles and permissions

queries/permissions.sql

@@ -0,0 +1,32 @@
+
+-- name: GetUserPermissions :many
+SELECT DISTINCT p.id,p.name,p.scope,p.description
+FROM permissions p
+
+-- From roles assigned directly to the user
+LEFT JOIN role_permissions rp_user
+    ON p.id = rp_user.permission_id
+LEFT JOIN user_roles ur
+    ON rp_user.role_id = ur.role_id AND ur.user_id = $1
+
+-- From roles assigned to user's groups
+LEFT JOIN user_groups ug
+    ON ug.user_id = $1
+LEFT JOIN group_roles gr
+    ON ug.group_id = gr.group_id
+LEFT JOIN role_permissions rp_group
+    ON gr.role_id = rp_group.role_id AND rp_group.permission_id = p.id
+
+-- Direct permissions to user
+LEFT JOIN user_permissions up
+    ON up.user_id = $1 AND up.permission_id = p.id
+
+-- Direct permissions to user's groups
+LEFT JOIN group_permissions gp
+    ON gp.group_id = ug.group_id AND gp.permission_id = p.id
+
+WHERE ur.user_id IS NOT NULL
+   OR gr.group_id IS NOT NULL
+   OR up.user_id IS NOT NULL
+   OR gp.group_id IS NOT NULL
+ORDER BY p.scope;