feat: SSE agent state, UCID fix, maint module, QA bug fixes

- Fix outbound disposition: store UCID from dial API response (root cause of silent disposition failure)
- SSE agent state: real-time Ozonetel state drives status toggle (ready/break/calling/in-call/acw)
- Maint module with OTP-protected endpoints (force-ready, unlock-agent, backfill, fix-timestamps)
- Maint OTP modal with PinInput component, keyboard shortcuts (Ctrl+Shift+R/U/B/T)
- Force-logout via SSE: admin unlock pushes force-logout to connected browsers
- Silence JsSIP debug flood, add structured lifecycle logging ([SIP], [DIAL], [DISPOSE], [AGENT-STATE])
- Centralize date formatting with IST-aware formatters across 11 files
- Fix call history: non-overlapping aggregates (completed/missed), correct timestamp display
- Auto-dismiss CallWidget ended/failed state after 3 seconds
- Remove floating "Helix Phone" idle badge from all pages
- Fix dead code in agent-state endpoint (auto-assign was unreachable after return)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/components/call-desk/worklist-panel.tsx

@@ -8,7 +8,7 @@ import { Badge } from '@/components/base/badges/badges';
 import { Input } from '@/components/base/input/input';
 import { Tabs, TabList, Tab } from '@/components/application/tabs/tabs';
 import { PhoneActionCell } from './phone-action-cell';
-import { formatPhone } from '@/lib/format';
+import { formatPhone, formatTimeOnly, formatShortDate } from '@/lib/format';
 import { notify } from '@/lib/toast';
 import { cx } from '@/utils/cx';
 
@@ -154,7 +154,7 @@ const buildRows = (missedCalls: MissedCall[], followUps: WorklistFollowUp[], lea
             direction: call.callDirection === 'OUTBOUND' ? 'outbound' : 'inbound',
             typeLabel: 'Missed Call',
             reason: call.startedAt
-                ? `Missed at ${new Date(call.startedAt).toLocaleTimeString('en-IN', { hour: 'numeric', minute: '2-digit', hour12: true })}${sourceSuffix}`
+                ? `Missed at ${formatTimeOnly(call.startedAt)}${sourceSuffix}`
                 : 'Missed call',
             createdAt: call.createdAt,
             taskState: call.callbackstatus === 'CALLBACK_ATTEMPTED' ? 'ATTEMPTED' : 'PENDING',
@@ -180,7 +180,7 @@ const buildRows = (missedCalls: MissedCall[], followUps: WorklistFollowUp[], lea
             direction: null,
             typeLabel: fu.followUpType === 'CALLBACK' ? 'Callback' : 'Follow-up',
             reason: fu.scheduledAt
-                ? `Scheduled ${new Date(fu.scheduledAt).toLocaleString('en-IN', { month: 'short', day: 'numeric', hour: 'numeric', minute: '2-digit', hour12: true })}`
+                ? `Scheduled ${formatShortDate(fu.scheduledAt)}`
                 : '',
             createdAt: fu.createdAt ?? fu.scheduledAt ?? new Date().toISOString(),
             taskState: isOverdue ? 'PENDING' : (fu.followUpStatus === 'COMPLETED' ? 'ATTEMPTED' : 'SCHEDULED'),