refactor: restructure permission handling and enhance Guard functionality

- Introduced a new `createGuard` function to streamline the creation of Guard instances with permissions and roles.
- Updated tests in `authorize.spec.ts` to reflect changes in permission checks, ensuring they now return undefined for denied permissions.
- Added new `Permission` and `Policy` classes to improve type safety and flexibility in permission management.
- Refactored middleware and controller files to utilize the updated permission structure, including context handling for permissions.
- Created a new `SystemController.spec.ts` file to test the integration of the new permission system within the SystemController.
- Removed legacy permission handling from core security files, consolidating permission logic within the new structure.

app/src/auth/middlewares/permission.middleware.ts

@@ -0,0 +1,93 @@
+import type { Permission, PermissionContext } from "auth/authorize/Permission";
+import { $console, threw } from "bknd/utils";
+import type { Context, Hono } from "hono";
+import type { RouterRoute } from "hono/types";
+import { createMiddleware } from "hono/factory";
+import type { ServerEnv } from "modules/Controller";
+import type { MaybePromise } from "core/types";
+
+function getPath(reqOrCtx: Request | Context) {
+   const req = reqOrCtx instanceof Request ? reqOrCtx : reqOrCtx.req.raw;
+   return new URL(req.url).pathname;
+}
+
+const permissionSymbol = Symbol.for("permission");
+
+type PermissionMiddlewareOptions<P extends Permission<any, any, any, any>> = {
+   onGranted?: (c: Context<ServerEnv>) => MaybePromise<Response | void | undefined>;
+   onDenied?: (c: Context<ServerEnv>) => MaybePromise<Response | void | undefined>;
+} & (P extends Permission<any, any, infer PC, any>
+   ? PC extends undefined
+      ? {
+           context?: never;
+        }
+      : {
+           context: (c: Context<ServerEnv>) => MaybePromise<PermissionContext<P>>;
+        }
+   : {
+        context?: never;
+     });
+
+export function permission<P extends Permission<any, any, any, any>>(
+   permission: P,
+   options: PermissionMiddlewareOptions<P>,
+) {
+   // @ts-ignore (middlewares do not always return)
+   const handler = createMiddleware<ServerEnv>(async (c, next) => {
+      const app = c.get("app");
+      const authCtx = c.get("auth");
+      if (!authCtx) {
+         throw new Error("auth ctx not found");
+      }
+
+      // in tests, app is not defined
+      if (!authCtx.registered || !app) {
+         const msg = `auth middleware not registered, cannot check permissions for ${getPath(c)}`;
+         if (app?.module.auth.enabled) {
+            throw new Error(msg);
+         } else {
+            $console.warn(msg);
+         }
+      } else if (!authCtx.skip) {
+         const guard = app.modules.ctx().guard;
+         const context = (await options?.context?.(c)) ?? ({} as any);
+
+         if (options?.onGranted || options?.onDenied) {
+            let returned: undefined | void | Response;
+            if (threw(() => guard.granted(permission, c, context))) {
+               returned = await options?.onDenied?.(c);
+            } else {
+               returned = await options?.onGranted?.(c);
+            }
+            if (returned instanceof Response) {
+               return returned;
+            }
+         } else {
+            guard.granted(permission, c, context);
+         }
+      }
+
+      await next();
+   });
+
+   return Object.assign(handler, {
+      [permissionSymbol]: { permission, options },
+   });
+}
+
+export function getPermissionRoutes(hono: Hono<any>) {
+   const routes: {
+      route: RouterRoute;
+      permission: Permission;
+      options: PermissionMiddlewareOptions<Permission>;
+   }[] = [];
+   for (const route of hono.routes) {
+      if (permissionSymbol in route.handler) {
+         routes.push({
+            route,
+            ...(route.handler[permissionSymbol] as any),
+         });
+      }
+   }
+   return routes;
+}