feat: TR-069 CWMP state machine hardening + exchange viewer improvements

- TR-069 CWMP state machine hardening (14 phases): shared event utility,
  multi-event routing, GPN circuit breaker, IdleState GPN guard, expanded
  GPN fault codes, CriticalReadsState, ConfigEval GPN guard, task queue
  race condition fix, explicit error handling, terminal states
  (OperationalState/PartialOperationalState), consolidated reclassify,
  crash pattern detection, removed enqueueImmediate, state flow wiring
- Fix SOAP Fault not processed by state machine (soap-env:Fault detection)
- Fix GPN circuit breaker not persisting after session drops
- Fix CriticalReadsState GPV response parsing (xsi:type normalization)
- Fix CriticalReadsState not processing GPV response values
- Skip SPV when device is already compliant (ProvisioningCode check)
- Add Device.DeviceInfo.ModelName to critical reads GPV
- Fix TypeError on DeviceDetail parameters view (null guards)
- Log empty 204 responses in exchange trace UI
- TR-181 catalog: type corrections and new entries (+6640 lines)
- SequenceViewer: replace session-nav buttons with compact dropdown select
- SequenceViewer: fix CPE/ACS lifeline headers wrapping to 2 lines
- Add 20 unit tests for state machine fixes (SOAP Fault, GPN circuit
  breaker, CriticalReads, stale session, ConfigEval/ComplianceUpdate skips)

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Co-Authored-By: Continue <noreply@continue.dev>

tests/unit/protocol/soap_fault.spec.ts

@@ -0,0 +1,64 @@
+import { describe, it, expect } from 'vitest'
+import { extractCwmpMessage } from '../../../app/protocol/soap.js'
+
+describe('extractCwmpMessage — SOAP Fault detection', () => {
+  it('detects soap-env:Fault as Fault message', () => {
+    const body = {
+      'soap-env:Fault': {
+        faultcode: 'Client',
+        faultstring: 'CWMP fault',
+        detail: { 'cwmp:Fault': { FaultCode: '9001', FaultString: 'Request denied' } },
+      },
+    }
+    const msg = extractCwmpMessage(body)
+    expect(msg).not.toBeNull()
+    expect(msg!.type).toBe('Fault')
+    expect(msg!.data.faultcode).toBe('Client')
+  })
+
+  it('detects SOAP-ENV:Fault as Fault message', () => {
+    const body = {
+      'SOAP-ENV:Fault': {
+        faultcode: 'Server',
+        faultstring: 'Internal error',
+      },
+    }
+    const msg = extractCwmpMessage(body)
+    expect(msg).not.toBeNull()
+    expect(msg!.type).toBe('Fault')
+    expect(msg!.data.faultcode).toBe('Server')
+  })
+
+  it('detects bare Fault as Fault message', () => {
+    const body = {
+      Fault: { FaultCode: '9002', FaultString: 'Internal error' },
+    }
+    const msg = extractCwmpMessage(body)
+    expect(msg).not.toBeNull()
+    expect(msg!.type).toBe('Fault')
+  })
+
+  it('detects soapenv:Fault as Fault message', () => {
+    const body = {
+      'soapenv:Fault': { faultcode: 'Client', faultstring: 'Fault' },
+    }
+    const msg = extractCwmpMessage(body)
+    expect(msg).not.toBeNull()
+    expect(msg!.type).toBe('Fault')
+  })
+
+  it('prefers cwmp: prefixed keys over Fault detection', () => {
+    const body = {
+      'cwmp:GetParameterValuesResponse': { ParameterList: [] },
+      'soap-env:Fault': { faultcode: 'Client' },
+    }
+    const msg = extractCwmpMessage(body)
+    expect(msg).not.toBeNull()
+    expect(msg!.type).toBe('GetParameterValuesResponse')
+  })
+
+  it('returns null when body has no cwmp: keys and no Fault', () => {
+    const body = { 'other:Something': {} }
+    expect(extractCwmpMessage(body)).toBeNull()
+  })
+})