feat(users): implement user management features and database schema

Added user management functionality, including the creation of app_users and user_interface_bindings tables in the database. Implemented API routes for user data retrieval and permissions handling. Enhanced the traffic monitoring system to include user traffic statistics and interface bindings. Updated relevant components and services to support the new user features, improving overall application functionality and user experience.

backend/src/db/schema.ts

@@ -4,6 +4,7 @@ import {
   real,
   sqliteTable,
   text,
+  uniqueIndex,
 } from "drizzle-orm/sqlite-core"
 
 // ── servers ────────────────────────────────────────────────────────────────────
@@ -540,6 +541,42 @@ export const internetPathSettings = sqliteTable("internet_path_settings", {
   updatedAt:      text("updated_at").notNull().default(sql`(datetime('now'))`),
 })
 
+// ── app users (local catalog, not portal JWT) ────────────────────────────────
+
+export const appUsers = sqliteTable("app_users", {
+  id:          text("id").primaryKey(),
+  name:        text("name").notNull().default(""),
+  login:       text("login").notNull().unique(),
+  email:       text("email").notNull().default(""),
+  role:        text("role", { enum: ["admin", "operator", "viewer"] }).notNull().default("viewer"),
+  active:      integer("active", { mode: "boolean" }).notNull().default(true),
+  avatar:      text("avatar").notNull().default(""),
+  lastSeen:    text("last_seen"),
+  sectionsJson: text("sections_json").notNull().default("[]"),
+  serversJson:  text("servers_json").notNull().default("[]"),
+  createdAt:   text("created_at").notNull().default(sql`(datetime('now'))`),
+  updatedAt:   text("updated_at").notNull().default(sql`(datetime('now'))`),
+})
+
+export const userInterfaceBindings = sqliteTable("user_interface_bindings", {
+  id:             text("id").primaryKey(),
+  userId:         text("user_id")
+                    .notNull()
+                    .references(() => appUsers.id, { onDelete: "cascade" }),
+  serverId:       integer("server_id")
+                    .notNull()
+                    .references(() => servers.id, { onDelete: "cascade" }),
+  interfaceName:  text("interface_name").notNull(),
+  interfaceType:  text("interface_type", { enum: ["ether", "gre", "wg", "other"] })
+                    .notNull()
+                    .default("other"),
+  comment:        text("comment").notNull().default(""),
+  createdAt:      text("created_at").notNull().default(sql`(datetime('now'))`),
+  updatedAt:      text("updated_at").notNull().default(sql`(datetime('now'))`),
+}, (t) => [
+  uniqueIndex("idx_user_iface_bind_server_name").on(t.serverId, t.interfaceName),
+])
+
 export const internetPathSnapshots = sqliteTable("internet_path_snapshots", {
   id:          integer("id").primaryKey({ autoIncrement: true }),
   sampledAt:   text("sampled_at").notNull(),
@@ -582,3 +619,5 @@ export type AlertDestinationRow = typeof alertDestinations.$inferSelect
 export type AlertHistoryRow = typeof alertHistory.$inferSelect
 export type AlertOutboxRow = typeof alertOutbox.$inferSelect
 export type AlertEngineCursorRow = typeof alertEngineCursor.$inferSelect
+export type AppUserRow = typeof appUsers.$inferSelect
+export type UserInterfaceBindingRow = typeof userInterfaceBindings.$inferSelect