Phase 3.3: topic sensitivity + Phase 3.4: auth foundation

Phase 3.3 — Session Topic Sensitivity (complete):
- Backend: topic_sensitivity column + session_sensitivity_log, sensitivity service
  (flip with one-way-latch + audit), PATCH /api/shared/chat/sessions/:id/topic,
  topic carried in pairing + extension WS payloads, CC filter + sensitive stats
  + per-mitra sensitive columns on activity page
- client_app: TopicSelectionBottomSheet before pricing, topic flows through
  pairing request, silent WS handler for session_topic_updated
- mitra_app: SensitivityBadge + SensitivityTheme + sensitivityConfigProvider,
  overlay badge + yellow accent, chat screen app-bar toggle with configurable
  confirmation + latch, extension card shows current flag, history + transcript
  yellow theme
- control_center: Sensitivitas Topik settings section, topic filter + column
  with inline audit log, sensitive stats dashboard card, mitra activity
  sensitive columns with QC flag

Phase 3.4 — Self-Managed Auth (foundation only):
- Migration: auth_sessions + otp_requests tables, social identity columns on
  customers, password_hash + lockout on control_center_users, OTP + CC lockout
  app_config keys
- New services: password (bcrypt + complexity), token (JWT HS256 + refresh
  rotation, session_id claim pre-wires future Valkey revocation),
  social-identity (Google + Apple JWKS), OTP (Fazpass stub — real API TBD)
- Constants: AuthProvider + OtpChannel
- Middleware, auth route rewrites, WS auth update, Firebase → FCM isolation
  still pending (next chunk); Fazpass docs + Apple Developer setup still
  required before E2E testing

Docs:
- requirement/phase3.3.md, phase3.3-plan.md, phase3.3-testing.md
- requirement/phase3.4.md, phase3.4-plan.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

backend/src/routes/internal/session.routes.js

@@ -1,6 +1,7 @@
 import { authenticate, requirePermission } from '../../plugins/auth.js'
 import { getCcUserByFirebaseUid } from '../../services/cc-user.service.js'
 import { listSessions, getSessionById, rerouteSession } from '../../services/session.service.js'
+import { getSessionSensitivityLog } from '../../services/sensitivity.service.js'
 import { getDashboardStats } from '../../services/dashboard.service.js'
 
 const attachCcUser = async (request, reply) => {
@@ -20,8 +21,13 @@ export const sessionManagementRoutes = async (app) => {
   app.get('/', {
     preHandler: [authenticate, attachCcUser, requirePermission('config', 'read')],
   }, async (request, reply) => {
-    const { page = 1, limit = 20, status } = request.query
-    const result = await listSessions({ page: Number(page), limit: Number(limit), status })
+    const { page = 1, limit = 20, status, topic_sensitivity } = request.query
+    const result = await listSessions({
+      page: Number(page),
+      limit: Number(limit),
+      status,
+      topic_sensitivity: topic_sensitivity && topic_sensitivity !== 'all' ? topic_sensitivity : undefined,
+    })
     return reply.send({ success: true, data: result })
   })
 
@@ -32,7 +38,8 @@ export const sessionManagementRoutes = async (app) => {
     if (!session) {
       return reply.code(404).send({ success: false, error: { code: 'NOT_FOUND', message: 'Session not found' } })
     }
-    return reply.send({ success: true, data: session })
+    const sensitivity_log = await getSessionSensitivityLog(request.params.sessionId)
+    return reply.send({ success: true, data: { ...session, sensitivity_log } })
   })
 
   app.post('/:sessionId/reroute', {