Move the seed into exp_scenario and seed the permission groups (#457)

The seed roles were owned by exp_roles, but they describe the scenario, so
they now live in exp_scenario/seed.ts next to the permissions they grant.
Each seed role names the permission group its holders belong to, and the
five groups the legacy config defined (Admin, Trusted, Standard, Guest,
Restricted) are seeded through exp_groups along with one role mapping per
role. Mapping priorities follow how exp_roles ranks a player's highest
role, so Jail lands in Restricted regardless of other roles.

SeedRolesRequest becomes exp_scenario's SeedRequest behind a new
exp_scenario.seed permission, and the button moves to the scenario's web
plugin, which gets a web entrypoint for it. exp_roles no longer depends on
exp_scenario, and exp_scenario gains controller tests around the seed.

With groups seeded from the controller the legacy expcore.permission_groups
module and its config are removed, along with the Group rcon static.

exp_scenario/package.json

@@ -7,15 +7,19 @@
 	"repository": "explosivegaming/ExpCluster",
 	"main": "dist/node/index.js",
 	"scripts": {
-		"prepare": "tsc --build && webpack-cli --env production"
+		"prepare": "tsc --build && webpack-cli --env production",
+		"test": "tap --disable-coverage --allow-empty-coverage test/*.test.js",
+		"coverage": "tap --coverage-report=text test/*.test.js"
 	},
 	"engines": {
 		"node": ">=18"
 	},
 	"peerDependencies": {
+		"@clusterio/controller": "workspace:^",
 		"@clusterio/lib": "workspace:^"
 	},
 	"devDependencies": {
+		"@clusterio/controller": "workspace:^",
 		"@clusterio/lib": "workspace:^",
 		"@clusterio/web_ui": "workspace:^",
 		"@types/node": "catalog:",
@@ -23,6 +27,7 @@
 		"antd": "catalog:",
 		"react": "catalog:",
 		"react-dom": "catalog:",
+		"tap": "^21.1.0",
 		"typescript": "catalog:",
 		"webpack": "catalog:",
 		"webpack-cli": "catalog:",
@@ -32,6 +37,8 @@
 		"@expcluster/lib_commands": "workspace:^",
 		"@expcluster/lib_util": "workspace:^",
 		"@expcluster/lib_gui": "workspace:^",
+		"@expcluster/permission-groups": "workspace:^",
+		"@expcluster/roles": "workspace:^",
 		"@sinclair/typebox": "catalog:"
 	},
 	"publishConfig": {