diff --git a/cocoscreator_projects/YouleNexus/assets/scripts/local-platform-login/local-login-host.ts b/cocoscreator_projects/YouleNexus/assets/scripts/local-platform-login/local-login-host.ts
new file mode 100644
index 0000000..00e6418
--- /dev/null
+++ b/cocoscreator_projects/YouleNexus/assets/scripts/local-platform-login/local-login-host.ts
@@ -0,0 +1,195 @@
+import { resolveLocalStartup } from '../../framework/config/local-startup.ts';
+import type { ResolveRuntimeConfigOptions } from '../../framework/config/runtime-config.ts';
+import { createLocalLoginSources, type LocalHostSnapshot, type LocalLoginSources } from '../../framework/adapters/local/login-sources.ts';
+import type { LocalStoragePort } from '../../framework/adapters/local/local-storage.ts';
+import { PlatformRuntime } from '../../framework/platform/runtime.ts';
+import type { PlatformState } from '../../framework/platform/stores/platform-types.ts';
+import { PlatformUiController } from '../../framework/presentation/platform-ui-controller.ts';
+import type { PlatformViewPort, FrameScheduler } from '../../framework/presentation/ui-contracts.ts';
+import { createDiagnosticGameEntry } from './local-login-game-entry.ts';
+import { createLocalLoginWire } from './local-login-wire.ts';
+import { LocalLoginTransport, type EvidenceSink } from './local-login-transport.ts';
+
+export interface LocalLoginHostOptions {
+  configOptions: ResolveRuntimeConfigOptions;
+  storage: LocalStoragePort;
+  random: () => number;
+  now: () => number;
+  sampleHost: () => LocalHostSnapshot;
+  view: PlatformViewPort;
+  scheduler: FrameScheduler;
+  loadResources: () => Promise<void>;
+  waitForMinimumDisplay: () => Promise<void>;
+  createSocket: (url: string) => WebSocket;
+  record: EvidenceSink;
+  onBusy: (busy: boolean) => void;
+  onFailure: (error: unknown) => void;
+}
+
+export interface LocalLoginHost {
+  start(): Promise<void>;
+  login(): Promise<void>;
+  stop(): void;
+  getSnapshot(): { state: PlatformState | null; ready: boolean; busy: boolean };
+}
+
+class LocalLoginHostFault extends Error {
+  readonly errors: readonly unknown[];
+  constructor(errors: readonly unknown[]) {
+    super('Local login host failed with additional observer or cleanup errors');
+    this.name = 'LocalLoginHostFault';
+    this.errors = Object.freeze([...errors]);
+  }
+}
+
+function collected(errors: readonly unknown[]): unknown {
+  return errors.length === 1 ? errors[0] : new LocalLoginHostFault(errors);
+}
+
+/** Development composition only; Runtime remains the sole business state owner. */
+export function createLocalLoginHost(options: LocalLoginHostOptions): LocalLoginHost {
+  let runtime: PlatformRuntime | null = null;
+  let controller: PlatformUiController | null = null;
+  let sources: LocalLoginSources | null = null;
+  let startup: Promise<void> | null = null;
+  let loginOperation: Promise<void> | null = null;
+  let terminal = false;
+  let busy = false;
+  let cleanupErrors: unknown[] | null = null;
+  let serverFailure: { data: unknown } | null = null;
+
+  function requireActive(): void {
+    if (terminal) throw new Error('Local login host is stopped or terminal');
+  }
+
+  function setBusy(value: boolean): void {
+    if (busy === value) return;
+    busy = value;
+    options.onBusy(value);
+  }
+
+  function shutdown(errors: unknown[]): void {
+    terminal = true;
+    cleanupErrors = errors;
+    // Disable input before releasing either owner; dispose preserves drawn output.
+    try { setBusy(false); } catch (error) { errors.push(error); }
+    try { controller?.dispose(); } catch (error) { errors.push(error); }
+    try { runtime?.stop(); } catch (error) { errors.push(error); }
+    cleanupErrors = null;
+  }
+
+  function fail(error: unknown): void {
+    if (cleanupErrors !== null) {
+      if (!cleanupErrors.includes(error)) cleanupErrors.push(error);
+      return;
+    }
+    if (terminal) return;
+    const errors = [error];
+    shutdown(errors);
+    options.onFailure(collected(errors));
+  }
+
+  function wireFault(error: unknown): void {
+    if (serverFailure === null) { fail(error); return; }
+    // The Wire scope marker follows the existing denial/kick handler. Keep the
+    // original server payload, and retain any independent Wire cleanup errors.
+    const extras = error instanceof Error && 'errors' in error
+      ? (error as Error & { errors: readonly unknown[] }).errors.slice(1) : [];
+    fail(collected([serverFailure.data, ...extras]));
+  }
+
+  function transportFault(error: unknown): void {
+    fail(serverFailure === null ? error : collected([serverFailure.data, error]));
+  }
+
+  async function readyTask(task: () => Promise<void>): Promise<void> {
+    try { requireActive(); await task(); }
+    catch (error) { fail(error); throw error; }
+  }
+
+  function start(): Promise<void> {
+    if (startup !== null) return startup;
+    if (terminal) return Promise.reject(new Error('Local login host is stopped or terminal'));
+    startup = Promise.resolve().then(async () => {
+      requireActive();
+      const context = await resolveLocalStartup(options.configOptions);
+      requireActive();
+      options.record({ kind: 'startup-config', data: context.config });
+      requireActive();
+      const entry = createDiagnosticGameEntry(context.config.identity.gameid, options.record);
+      sources = createLocalLoginSources({ context, storage: options.storage, random: options.random,
+        now: options.now, sampleHost: options.sampleHost,
+        isSessionActive: () => busy || runtime?.state.app.phase === 'logged-in' });
+      controller = new PlatformUiController({
+        render: model => {
+          if (terminal) return;
+          try { options.view.render(model); }
+          catch (error) { fail(error); throw error; }
+        },
+        activate: page => {
+          if (terminal) return;
+          try {
+            options.view.activate(page);
+            if (!terminal && page === 'lobby') setBusy(false);
+          } catch (error) { fail(error); throw error; }
+        },
+        showOverlay: model => {
+          if (terminal) return;
+          if (model.kind === 'denial') serverFailure = { data: model.outcome.data };
+          if (model.kind === 'kicked') serverFailure = { data: model.data };
+          try { options.view.showOverlay(model); }
+          catch (error) { transportFault(error); throw error; }
+          if (model.kind === 'fatal') fail(model.error);
+        },
+      }, options.scheduler, fail);
+      runtime = new PlatformRuntime({ gameEntry: entry,
+        resolveRuntimeConfig: async () => context.config,
+        createWireClient: () => createLocalLoginWire({ context, record: options.record, onFault: wireFault,
+          transportFactory: () => new LocalLoginTransport({ context, createSocket: options.createSocket,
+            record: options.record, onFault: transportFault }) }),
+        scene: controller, loadResources: () => readyTask(options.loadResources),
+        waitForMinimumDisplay: () => readyTask(options.waitForMinimumDisplay),
+        getLoginDeviceSnapshot: sources.getLoginDeviceSnapshot,
+      });
+      controller.connect(runtime);
+      requireActive();
+      await runtime.start();
+      requireActive();
+    }).catch(error => { fail(error); throw error; });
+    return startup;
+  }
+
+  function login(): Promise<void> {
+    if (terminal) return Promise.reject(new Error('Local login host is stopped or terminal'));
+    if (busy && loginOperation !== null) return loginOperation;
+    if (runtime === null || controller === null || sources === null || !runtime.ready) {
+      return Promise.reject(new Error('Local login host is not ready for login'));
+    }
+    const activeSources = sources;
+    const activeController = controller;
+    loginOperation = Promise.resolve().then(async () => {
+      requireActive();
+      const account = await activeSources.prepareLogin();
+      requireActive();
+      activeController.login(account);
+    }).catch(error => { fail(error); throw error; });
+    try { setBusy(true); } catch (error) { fail(error); }
+    return loginOperation;
+  }
+
+  return {
+    start, login,
+    stop() {
+      if (terminal) return;
+      const errors: unknown[] = [];
+      shutdown(errors);
+      if (errors.length > 0) {
+        const error = collected(errors);
+        options.onFailure(error);
+        throw error;
+      }
+    },
+    getSnapshot: () => ({ state: runtime === null ? null : runtime.state,
+      ready: !terminal && runtime !== null && runtime.ready, busy }),
+  };
+}
diff --git a/cocoscreator_projects/framework-tests/local-platform-login/host.test.ts b/cocoscreator_projects/framework-tests/local-platform-login/host.test.ts
new file mode 100644
index 0000000..9b244f0
--- /dev/null
+++ b/cocoscreator_projects/framework-tests/local-platform-login/host.test.ts
@@ -0,0 +1,178 @@
+import assert from 'node:assert/strict';
+import { readFileSync } from 'node:fs';
+import { test } from 'node:test';
+import type { PageModel, OverlayModel, PageId } from '../../YouleNexus/assets/framework/presentation/ui-contracts.ts';
+import type { ResolveRuntimeConfigOptions } from '../../YouleNexus/assets/framework/config/runtime-config.ts';
+
+function deferred() {
+  let resolve!: () => void;
+  let reject!: (error: unknown) => void;
+  const promise = new Promise<void>((yes, no) => { resolve = yes; reject = no; });
+  return { promise, resolve, reject };
+}
+async function flush() { for (let i = 0; i < 30; i++) await Promise.resolve(); }
+function fixture(name = 'player-login-success.json') {
+  return JSON.parse(readFileSync(new URL(`../fixtures/contracts/${name}`, import.meta.url), 'utf8'));
+}
+class Socket {
+  readyState = 0;
+  sent: string[] = [];
+  closes = 0;
+  closeError?: Error;
+  onopen: (() => void) | null = null;
+  onclose: (() => void) | null = null;
+  onmessage: ((event: { data: string }) => void) | null = null;
+  onerror: (() => void) | null = null;
+  send(frame: string) { this.sent.push(frame); }
+  close() { this.closes++; if (this.closeError) throw this.closeError; this.readyState = 3; this.onclose?.(); }
+  open() { this.readyState = 1; this.onopen?.(); }
+  push(message: unknown) { this.onmessage?.({ data: JSON.stringify(message) }); }
+}
+async function setup(overrides: { config?: Partial<ResolveRuntimeConfigOptions>; render?: (model: PageModel) => void;
+  record?: (event: { kind: string; data: unknown }) => void; onBusy?: (busy: boolean) => void } = {}) {
+  const api = await import('../../YouleNexus/assets/scripts/local-platform-login/local-login-host.ts')
+    .catch(error => assert.fail(`Local login host implementation must exist: ${String(error)}`));
+  const resources = deferred(), minimum = deferred();
+  const sockets: Socket[] = [], pages: PageModel[] = [], overlays: OverlayModel[] = [], activations: PageId[] = [];
+  const failures: unknown[] = [], busy: boolean[] = [], evidence: { kind: string; data: unknown }[] = [];
+  const values = new Map<string, string>(), frames = new Set<() => void>();
+  let fetches = 0;
+  const host = api.createLocalLoginHost({
+    configOptions: { mode: 'debug', hostKind: 'h5', win: {}, search: '?profile=local&version=731',
+      fetcher: { async fetch(): Promise<never> { fetches++; throw new Error('unexpected fetch'); } }, ...overrides.config },
+    storage: { getItem: key => values.get(key) ?? null, setItem: (key, value) => { values.set(key, value); } },
+    random: () => .5, now: () => 123456, sampleHost: () => ({ location: null }),
+    view: { render: model => { overrides.render?.(model); pages.push(model); },
+      activate: page => { activations.push(page); }, showOverlay: model => { overlays.push(model); } },
+    scheduler: { request: callback => { frames.add(callback); return () => { frames.delete(callback); }; } },
+    loadResources: () => resources.promise, waitForMinimumDisplay: () => minimum.promise,
+    createSocket: () => { const socket = new Socket(); sockets.push(socket); return socket as unknown as WebSocket; },
+    record: event => { evidence.push(event); overrides.record?.(event); },
+    onBusy: value => { busy.push(value); overrides.onBusy?.(value); }, onFailure: error => { failures.push(error); },
+  });
+  const draw = () => { for (const frame of [...frames]) { frames.delete(frame); frame(); } };
+  const ready = async () => { const starting = host.start(); resources.resolve(); minimum.resolve(); await flush(); sockets[0]!.open(); await starting; draw(); };
+  return { host, resources, minimum, sockets, pages, overlays, activations, failures, busy, evidence, values, frames, draw, ready, fetches: () => fetches };
+}
+
+for (const missing of ['resources', 'minimum', 'socket'] as const) test(`login waits for ${missing}, and start composes only once`, async t => {
+  const h = await setup(); t.after(() => h.host.stop());
+  const starting = h.host.start(); const repeated = h.host.start();
+  assert.strictEqual(starting, repeated);
+  await flush();
+  if (missing !== 'resources') h.resources.resolve();
+  if (missing !== 'minimum') h.minimum.resolve();
+  if (missing !== 'socket') h.sockets[0]!.open();
+  await flush();
+  assert.equal(h.host.getSnapshot().ready, false);
+  await assert.rejects(h.host.login(), /ready/i);
+  assert.equal(h.values.size, 0); assert.deepEqual(h.sockets[0]!.sent, []);
+  h.resources.resolve(); h.minimum.resolve(); if (missing === 'socket') h.sockets[0]!.open();
+  await starting;
+  assert.equal(h.host.getSnapshot().ready, true); assert.equal(h.fetches(), 0);
+  assert.equal(h.sockets.length, 1);
+  assert.equal(h.evidence.filter(event => event.kind === 'startup-config').length, 1);
+  await h.host.login();
+  assert.equal(JSON.parse(h.sockets[0]!.sent[0]!).data.version, 731);
+});
+
+test('duplicate clicks send once; response updates the sole Store and lobby projection and clears busy', async t => {
+  const h = await setup(); t.after(() => h.host.stop()); await h.ready();
+  const first = h.host.login(), second = h.host.login(); assert.strictEqual(first, second);
+  assert.equal(h.host.getSnapshot().busy, true);
+  await first; await h.host.login(); assert.equal(h.sockets[0]!.sent.length, 1);
+  assert.deepEqual(h.busy, [true]);
+  h.sockets[0]!.push(fixture()); h.draw();
+  assert.equal(h.host.getSnapshot().state?.app.phase, 'logged-in');
+  assert.equal(h.host.getSnapshot().state?.room.kind, 'outside');
+  assert.deepEqual(h.pages[h.pages.length - 1], { page: 'lobby', self: { playerid: 430511, nickname: '测试号', avatar: 'http://a', bean: 0 } });
+  assert.deepEqual(h.busy, [true, false]);
+  const before = h.pages.length; h.host.stop(); h.draw(); assert.equal(h.pages.length, before);
+});
+
+for (const rpc of ['player_login', 'kick_server']) test(`${rpc} retains original server reason through terminal cleanup`, async t => {
+  const h = await setup(); t.after(() => h.host.stop()); await h.ready(); await h.host.login();
+  const data = { state: 17, msg: '原始服务器原因' };
+  h.sockets[0]!.push({ route: 'agent', rpc, data });
+  assert.equal(h.failures.length, 1); assert.deepEqual(h.failures[0], data);
+  assert.equal(h.host.getSnapshot().ready, false); assert.equal(h.host.getSnapshot().busy, false);
+  assert.equal(h.sockets[0]!.closes, 1);
+  await assert.rejects(h.host.login(), /stop|terminal/i);
+});
+
+test('room recovery is refused before any player or room state enters Store', async t => {
+  const h = await setup(); t.after(() => h.host.stop()); await h.ready(); await h.host.login();
+  h.sockets[0]!.push(fixture('player-login-room.json'));
+  assert.match(String(h.failures[0]), /room recovery/);
+  assert.equal(h.host.getSnapshot().state?.players.selfPlayerId, null);
+  assert.equal(h.host.getSnapshot().state?.room.kind, 'outside');
+  assert.equal(h.pages.some(model => model.page === 'lobby'), false);
+});
+
+test('corrupt account cache prevents sending and preserves the cache', async t => {
+  const h = await setup(); t.after(() => h.host.stop()); await h.ready();
+  // Discover the authority-owned key from a prior independent local login.
+  const prior = await setup(); t.after(() => prior.host.stop()); await prior.ready(); await prior.host.login();
+  for (const [key, value] of prior.values) h.values.set(key, value);
+  const accountKey = [...h.values].find(([, value]) => value.includes('account'))![0];
+  h.values.set(accountKey, '{broken');
+  await assert.rejects(h.host.login(), /invalid JSON/);
+  assert.equal(h.sockets[0]!.sent.length, 0); assert.equal(h.values.get(accountKey), '{broken');
+  assert.equal(h.failures.length, 1);
+});
+
+for (const phase of ['config', 'resources', 'prepare'] as const) test(`stop during ${phase} suppresses late connection, send and render`, async () => {
+  const h = await setup();
+  let operation: Promise<void>;
+  if (phase === 'prepare') { await h.ready(); operation = h.host.login(); }
+  else { operation = h.host.start(); if (phase === 'resources') await flush(); }
+  const settled = operation.catch(() => {});
+  // Let config resolution / account preparation begin before terminal stop.
+  if (phase !== 'resources') await Promise.resolve();
+  h.host.stop(); const pageCount = h.pages.length;
+  h.resources.resolve(); h.minimum.resolve(); await settled; await flush(); h.draw();
+  assert.equal(h.pages.length, pageCount); assert.equal(h.frames.size, 0);
+  assert.equal(h.sockets.flatMap(socket => socket.sent).length, 0);
+  if (phase === 'config') assert.equal(h.sockets.length, 0);
+  assert.deepEqual(h.failures, []);
+});
+
+for (const config of [{ search: '?profile=prod' }, { hostKind: 'native-settings' as const }]) test('invalid local input cannot create an account or connection', async () => {
+  const h = await setup({ config });
+  await assert.rejects(h.host.start(), /local startup/);
+  assert.equal(h.values.size, 0); assert.equal(h.sockets.length, 0); assert.equal(h.failures.length, 1);
+});
+
+test('resource failure is reported with original object after shutdown', async () => {
+  const h = await setup(); const error = new Error('resource dependency missing');
+  const starting = h.host.start(); await flush(); h.resources.reject(error); h.minimum.resolve();
+  await assert.rejects(starting);
+  assert.strictEqual(h.failures[0], error); assert.equal(h.sockets[0]!.closes, 1);
+});
+
+test('observer and socket cleanup failures both survive terminal reporting', async t => {
+  const observer = new Error('render observer failed'), cleanup = new Error('socket close failed');
+  const h = await setup({ render: model => { if (model.page === 'lobby') throw observer; } });
+  t.after(() => h.host.stop()); await h.ready(); await h.host.login(); h.sockets[0]!.closeError = cleanup;
+  h.sockets[0]!.push(fixture());
+  const contains = (value: unknown, target: unknown): boolean => value === target ||
+    (!!value && typeof value === 'object' && 'errors' in value && (value.errors as unknown[]).some(error => contains(error, target)));
+  assert.equal(contains(h.failures[0], observer), true); assert.equal(contains(h.failures[0], cleanup), true);
+});
+
+test('resource error remains primary when closing its socket also fails', async () => {
+  const h = await setup(); const primary = new Error('resource failed'), cleanup = new Error('close failed');
+  const starting = h.host.start(); await flush(); h.sockets[0]!.closeError = cleanup;
+  h.resources.reject(primary); h.minimum.resolve(); await assert.rejects(starting);
+  const errors = (h.failures[0] as { errors: unknown[] }).errors;
+  assert.strictEqual(errors[0], primary); assert.ok(errors.includes(cleanup));
+});
+
+test('kick data remains primary when closing its socket also fails', async () => {
+  const h = await setup(); await h.ready(); await h.host.login();
+  const cleanup = new Error('kick close failed'); h.sockets[0]!.closeError = cleanup;
+  const data = { msg: 'original kick reason' };
+  h.sockets[0]!.push({ route: 'agent', rpc: 'kick_server', data });
+  const errors = (h.failures[0] as { errors: unknown[] }).errors;
+  assert.deepEqual(errors[0], data); assert.ok(errors.includes(cleanup));
+});