feat: global failover + dashboard model config section

- Failover is now global (account-level, not per-channel)
- Dashboard shows role model config (Owner/Reviewer/Arbiter + MoA refs)
- Dashboard shows failover status when active
- Auto-clear failover on successful Claude rotation
- Remove per-channel lease writes from failover path

src/config.ts

@@ -191,8 +191,7 @@ function parseMoaReferenceModels(): MoaModelConfig[] {
 export function getMoaConfig(): MoaConfig {
   const referenceModels = parseMoaReferenceModels();
   return {
-    enabled:
-      getEnv('MOA_ENABLED') === 'true' && referenceModels.length > 0,
+    enabled: getEnv('MOA_ENABLED') === 'true' && referenceModels.length > 0,
     referenceModels,
   };
 }

src/index.ts

@@ -83,8 +83,8 @@ import {
   stopTokenRefreshLoop,
 } from './token-refresh.js';
 import {
-  getActiveCodexFailoverLeases,
-  restoreDefaultChannelLease,
+  clearGlobalFailover,
+  getGlobalFailoverInfo,
 } from './service-routing.js';
 import { FAILOVER_MIN_DURATION_MS } from './config.js';
 import { startCredentialProxy } from './credential-proxy.js';
@@ -536,43 +536,20 @@ async function main(): Promise<void> {
   });
 
   leaseRecoveryTimer = setInterval(() => {
-    if (!hasAvailableClaudeToken()) {
-      return;
-    }
-    const now = Date.now();
-    for (const lease of getActiveCodexFailoverLeases()) {
-      const activatedMs = lease.activatedAt
-        ? new Date(lease.activatedAt).getTime()
-        : NaN;
-      if (Number.isNaN(activatedMs)) {
-        logger.warn(
-          { chatJid: lease.chatJid, activatedAt: lease.activatedAt },
-          'Failover lease has unparseable activated_at, skipping auto-restore',
-        );
-        continue;
-      }
-      const elapsed = now - activatedMs;
-      if (elapsed < FAILOVER_MIN_DURATION_MS) {
-        logger.debug(
-          {
-            chatJid: lease.chatJid,
-            elapsedMin: Math.round(elapsed / 60_000),
-            minDurationMin: Math.round(FAILOVER_MIN_DURATION_MS / 60_000),
-          },
-          'Failover lease still within minimum hold period, skipping restore',
-        );
-        continue;
-      }
-      restoreDefaultChannelLease(lease.chatJid);
-      logger.info(
-        {
-          chatJid: lease.chatJid,
-          serviceId: SERVICE_ID,
-          elapsedMin: Math.round(elapsed / 60_000),
-        },
-        'Claude token available and failover hold period elapsed, restored default channel lease',
-      );
-    }
+    const failover = getGlobalFailoverInfo();
+    if (!failover.active) return;
+    if (!hasAvailableClaudeToken()) return;
+    const activatedMs = failover.activatedAt
+      ? new Date(failover.activatedAt).getTime()
+      : NaN;
+    if (Number.isNaN(activatedMs)) return;
+    const elapsed = Date.now() - activatedMs;
+    if (elapsed < FAILOVER_MIN_DURATION_MS) return;
+    clearGlobalFailover();
+    logger.info(
+      { elapsedMin: Math.round(elapsed / 60_000) },
+      'Claude token available and hold period elapsed, global failover cleared',
+    );
   }, 5_000);
   runtime.startMessageLoop().catch((err) => {
     logger.fatal({ err }, 'Message loop crashed unexpectedly');

src/message-agent-executor.test.ts

@@ -53,6 +53,7 @@ vi.mock('./db.js', () => ({
 
 vi.mock('./service-routing.js', () => ({
   activateCodexFailover: vi.fn(),
+  clearGlobalFailover: vi.fn(),
   getEffectiveChannelLease: vi.fn(() => ({
     chat_jid: 'group@test',
     owner_service_id: 'claude',

src/provider-retry.ts

@@ -19,6 +19,7 @@ import {
   getTokenCount,
   markTokenHealthy,
 } from './token-rotation.js';
+import { clearGlobalFailover } from './service-routing.js';
 
 // ── Types ────────────────────────────────────────────────────────
 
@@ -159,6 +160,7 @@ export async function runClaudeRotationLoop(
 
     // ── Success ──
     markTokenHealthy();
+    clearGlobalFailover();
     return { type: 'success' };
   }
 

src/service-routing.test.ts

@@ -3,19 +3,20 @@ import { beforeEach, describe, expect, it } from 'vitest';
 import { _initTestDatabase, setRegisteredGroup } from './db.js';
 import {
   activateCodexFailover,
-  getActiveCodexFailoverLeases,
+  clearGlobalFailover,
   getEffectiveChannelLease,
+  getGlobalFailoverInfo,
   refreshChannelOwnerCache,
-  restoreDefaultChannelLease,
 } from './service-routing.js';
 
 beforeEach(() => {
   _initTestDatabase();
   refreshChannelOwnerCache(true);
+  clearGlobalFailover();
 });
 
-describe('service-routing failover leases', () => {
-  it('uses codex-review as owner and codex-main as reviewer during failover', () => {
+describe('service-routing global failover', () => {
+  it('uses codex-review as owner during global failover', () => {
     setRegisteredGroup('dc:paired', {
       name: 'Paired Room Claude',
       folder: 'paired-claude',
@@ -33,6 +34,8 @@ describe('service-routing failover leases', () => {
 
     activateCodexFailover('dc:paired', 'claude-429');
 
+    // Global failover applies to ALL channels
+    expect(getGlobalFailoverInfo().active).toBe(true);
     expect(getEffectiveChannelLease('dc:paired')).toMatchObject({
       chat_jid: 'dc:paired',
       owner_service_id: 'codex-review',
@@ -40,15 +43,15 @@ describe('service-routing failover leases', () => {
       reason: 'claude-429',
       explicit: true,
     });
-    expect(getActiveCodexFailoverLeases()).toEqual([
-      {
-        chatJid: 'dc:paired',
-        activatedAt: expect.any(String),
-      },
-    ]);
+    // Any other channel is also affected
+    expect(getEffectiveChannelLease('dc:other')).toMatchObject({
+      owner_service_id: 'codex-review',
+      reviewer_service_id: 'codex-main',
+      explicit: true,
+    });
   });
 
-  it('restores the default lease after failover is cleared', () => {
+  it('restores default lease after global failover is cleared', () => {
     setRegisteredGroup('dc:paired', {
       name: 'Paired Room Claude',
       folder: 'paired-claude',
@@ -65,8 +68,9 @@ describe('service-routing failover leases', () => {
     });
 
     activateCodexFailover('dc:paired', 'claude-429');
-    restoreDefaultChannelLease('dc:paired');
+    clearGlobalFailover();
 
+    expect(getGlobalFailoverInfo().active).toBe(false);
     expect(getEffectiveChannelLease('dc:paired')).toMatchObject({
       chat_jid: 'dc:paired',
       owner_service_id: 'codex-main',

src/service-routing.ts

@@ -16,6 +16,7 @@ import {
   setChannelOwnerLease,
   type ChannelOwnerLeaseRow,
 } from './db.js';
+import { logger } from './logger.js';
 
 export interface EffectiveChannelLease {
   chat_jid: string;
@@ -122,6 +123,18 @@ export function refreshChannelOwnerCache(force = false): void {
 export function getEffectiveChannelLease(
   chatJid: string,
 ): EffectiveChannelLease {
+  // Global failover overrides all per-channel leases
+  if (globalFailoverActive) {
+    return {
+      chat_jid: chatJid,
+      owner_service_id: CODEX_REVIEW_SERVICE_ID,
+      reviewer_service_id: CODEX_MAIN_SERVICE_ID,
+      arbiter_service_id: null,
+      activated_at: globalFailoverActivatedAt,
+      reason: globalFailoverReason,
+      explicit: true,
+    };
+  }
   refreshChannelOwnerCache();
   const row = leaseCache.get(chatJid);
   if (row) {
@@ -167,19 +180,48 @@ export function shouldServiceProcessChat(
   return true;
 }
 
-export function activateCodexFailover(chatJid: string, reason: string): void {
-  const now = new Date().toISOString();
-  const row: ChannelOwnerLeaseRow = {
-    chat_jid: chatJid,
-    owner_service_id: CODEX_REVIEW_SERVICE_ID,
-    reviewer_service_id: CODEX_MAIN_SERVICE_ID,
-    arbiter_service_id: null,
-    activated_at: now,
-    reason,
+// ── Global failover ──────────────────────────────────────────────
+// Claude API limits are account-level, so failover applies to all channels.
+
+let globalFailoverActive = false;
+let globalFailoverReason: string | null = null;
+let globalFailoverActivatedAt: string | null = null;
+
+export function activateCodexFailover(
+  _chatJid: string,
+  reason: string,
+): void {
+  globalFailoverActive = true;
+  globalFailoverReason = reason;
+  globalFailoverActivatedAt = new Date().toISOString();
+  logger.warn(
+    { reason, activatedAt: globalFailoverActivatedAt },
+    'Global failover activated — all channels switching to codex',
+  );
+}
+
+export function isGlobalFailoverActive(): boolean {
+  return globalFailoverActive;
+}
+
+export function getGlobalFailoverInfo(): {
+  active: boolean;
+  reason: string | null;
+  activatedAt: string | null;
+} {
+  return {
+    active: globalFailoverActive,
+    reason: globalFailoverReason,
+    activatedAt: globalFailoverActivatedAt,
   };
-  setChannelOwnerLease(row);
-  leaseCache.set(chatJid, row);
-  lastLeaseRefreshAt = Date.now();
+}
+
+export function clearGlobalFailover(): void {
+  if (!globalFailoverActive) return;
+  globalFailoverActive = false;
+  globalFailoverReason = null;
+  globalFailoverActivatedAt = null;
+  logger.info('Global failover cleared — resuming normal routing');
 }
 
 export function restoreDefaultChannelLease(chatJid: string): void {
@@ -194,18 +236,13 @@ export interface ActiveFailoverLease {
 }
 
 export function getActiveCodexFailoverLeases(): ActiveFailoverLease[] {
-  refreshChannelOwnerCache(true);
-  return [...leaseCache.values()]
-    .filter(
-      (row) =>
-        normalizeServiceId(row.owner_service_id) === CODEX_REVIEW_SERVICE_ID &&
-        normalizeServiceId(row.reviewer_service_id || '') ===
-          CODEX_MAIN_SERVICE_ID,
-    )
-    .map((row) => ({
-      chatJid: row.chat_jid,
-      activatedAt: row.activated_at ?? null,
-    }));
+  // Global failover: report as a single pseudo-lease
+  if (globalFailoverActive) {
+    return [
+      { chatJid: '*', activatedAt: globalFailoverActivatedAt },
+    ];
+  }
+  return [];
 }
 
 /** @deprecated Use getActiveCodexFailoverLeases() instead */

src/unified-dashboard.ts

@@ -2,10 +2,18 @@ import { execSync } from 'child_process';
 import os from 'os';
 
 import {
+  ARBITER_AGENT_TYPE,
+  ARBITER_MODEL_CONFIG,
+  OWNER_AGENT_TYPE,
+  OWNER_MODEL_CONFIG,
+  REVIEWER_AGENT_TYPE,
+  REVIEWER_MODEL_CONFIG,
   STATUS_SHOW_ROOM_DETAILS,
   STATUS_SHOW_ROOMS,
   USAGE_DASHBOARD_ENABLED,
+  getMoaConfig,
 } from './config.js';
+import { getGlobalFailoverInfo } from './service-routing.js';
 import {
   fetchAllClaudeUsage,
   fetchAllClaudeProfiles,
@@ -540,8 +548,55 @@ async function buildUsageContent(): Promise<string> {
   return lines.join('\n');
 }
 
+function buildModelConfigSection(): string {
+  const roleConfigs = [
+    {
+      label: 'Owner',
+      agentType: OWNER_AGENT_TYPE,
+      model: OWNER_MODEL_CONFIG.model,
+    },
+    {
+      label: 'Reviewer',
+      agentType: REVIEWER_AGENT_TYPE,
+      model: REVIEWER_MODEL_CONFIG.model,
+    },
+    {
+      label: 'Arbiter',
+      agentType: ARBITER_AGENT_TYPE,
+      model: ARBITER_MODEL_CONFIG.model,
+    },
+  ];
+
+  const lines = ['🤖 *모델 구성*'];
+  for (const role of roleConfigs) {
+    if (!role.agentType && role.label === 'Arbiter') continue;
+    const type = role.agentType || '—';
+    const defaultModel = type === 'codex'
+      ? (process.env.CODEX_MODEL || 'codex')
+      : (process.env.CLAUDE_MODEL || 'claude');
+    const model = role.model || defaultModel;
+    lines.push(`  **${role.label}** — ${type} \`${model}\``);
+  }
+
+  // MoA status
+  const moaConfig = getMoaConfig();
+  if (moaConfig.enabled) {
+    const refs = moaConfig.referenceModels.map((m) => m.name).join(', ');
+    lines.push(`  **MoA** — ${refs}`);
+  }
+
+  // Global failover
+  const failover = getGlobalFailoverInfo();
+  if (failover.active) {
+    lines.push(`  ⚠️ **Failover 활성** — ${failover.reason || '알 수 없음'}`);
+  }
+
+  return lines.join('\n');
+}
+
 function buildUnifiedDashboardContent(): string {
   const sections: string[] = [];
+  sections.push(buildModelConfigSection());
   if (STATUS_SHOW_ROOMS) {
     sections.push(buildStatusContent());
   }