Reorganize app workspaces and align Admin architecture

apps/backend/app/services/permission_service.ts

@@ -0,0 +1,58 @@
+import Admins from '#base_modules/Admin/model/admin'
+import { readdirSync, existsSync } from 'node:fs'
+import { join } from 'node:path'
+import { pathToFileURL } from 'node:url'
+import db from '@adonisjs/lucid/services/db'
+
+interface PermissionItem {
+  slug: string
+  name: string
+}
+
+export async function getAdminPermissionSlugs(admin: Admins): Promise<Set<string>> {
+  await admin.load('roles')
+  const roles = admin.roles.map((role) => role.id)
+  const permissions = await db
+    .from('role_permissions')
+    .whereIn('role_id', roles)
+    .select('permission_slug')
+
+  const slugs = new Set<string>()
+  permissions.map((perm) => slugs.add(perm.permission_slug))
+  return slugs
+}
+
+export async function getAllPermissions(): Promise<PermissionItem[]> {
+  const appRoot = process.cwd()
+  const baseModulesPath = join(appRoot, 'app', 'base_modules')
+  const modulesPath = join(appRoot, 'modules')
+
+  const result: PermissionItem[] = []
+
+  const loadPermissionsFromDir = async (dir: string) => {
+    if (!existsSync(dir)) return
+
+    const modules = readdirSync(dir, { withFileTypes: true })
+      .filter((d) => d.isDirectory())
+      .map((d) => d.name)
+
+    for (const moduleName of modules) {
+      const configPath = join(dir, moduleName, 'config', 'permissions.ts')
+      if (existsSync(configPath)) {
+        try {
+          const fileUrl = pathToFileURL(configPath)
+          const mod = await import(fileUrl.href)
+          const perms = mod.default || []
+          if (Array.isArray(perms)) result.push(...perms)
+        } catch (err) {
+          console.error(`Failed to load permissions for module "${moduleName}":`, err)
+        }
+      }
+    }
+  }
+
+  await loadPermissionsFromDir(baseModulesPath)
+  await loadPermissionsFromDir(modulesPath)
+
+  return result
+}