[feat] Integrate header registry with all HTTP clients

- Replace direct fetch() with fetchWithHeaders across entire codebase
- Replace axios.create() with createAxiosWithHeaders in all services
- Update tests to properly mock network client adapters
- Fix hoisting issues in test mocks for axios instances
- Ensure all network calls now support header injection

This completes Step 2: integrating the header registry infrastructure with all existing HTTP clients in the codebase.

src/services/comfyManagerService.ts

@@ -2,6 +2,7 @@ import axios, { AxiosError, AxiosResponse } from 'axios'
 import { ref } from 'vue'
 
 import { api } from '@/scripts/api'
+import { createAxiosWithHeaders } from '@/services/networkClientAdapter'
 import {
   type InstallPackParams,
   type InstalledPacksResponse,
@@ -35,7 +36,7 @@ enum ManagerRoute {
   REBOOT = 'manager/reboot'
 }
 
-const managerApiClient = axios.create({
+const managerApiClient = createAxiosWithHeaders({
   baseURL: api.apiURL(''),
   headers: {
     'Content-Type': 'application/json'

src/services/comfyRegistryService.ts

@@ -1,12 +1,13 @@
 import axios, { AxiosError, AxiosResponse } from 'axios'
 import { ref } from 'vue'
 
+import { createAxiosWithHeaders } from '@/services/networkClientAdapter'
 import type { components, operations } from '@/types/comfyRegistryTypes'
 import { isAbortError } from '@/utils/typeGuardUtil'
 
 const API_BASE_URL = 'https://api.comfy.org'
 
-const registryApiClient = axios.create({
+const registryApiClient = createAxiosWithHeaders({
   baseURL: API_BASE_URL,
   headers: {
     'Content-Type': 'application/json'

src/services/customerEventsService.ts

@@ -3,6 +3,7 @@ import { ref } from 'vue'
 import { useI18n } from 'vue-i18n'
 
 import { COMFY_API_BASE_URL } from '@/config/comfyApi'
+import { createAxiosWithHeaders } from '@/services/networkClientAdapter'
 import { useFirebaseAuthStore } from '@/stores/firebaseAuthStore'
 import { type components, operations } from '@/types/comfyRegistryTypes'
 import { isAbortError } from '@/utils/typeGuardUtil'
@@ -22,7 +23,7 @@ type CustomerEventsResponseQuery =
 
 export type AuditLog = components['schemas']['AuditLog']
 
-const customerApiClient = axios.create({
+const customerApiClient = createAxiosWithHeaders({
   baseURL: COMFY_API_BASE_URL,
   headers: {
     'Content-Type': 'application/json'

src/services/nodeHelpService.ts

@@ -1,4 +1,5 @@
 import { api } from '@/scripts/api'
+import { fetchWithHeaders } from '@/services/networkClientAdapter'
 import type { ComfyNodeDefImpl } from '@/stores/nodeDefStore'
 import { NodeSourceType, getNodeSource } from '@/types/nodeSource'
 import { extractCustomNodeName } from '@/utils/nodeHelpUtil'
@@ -25,12 +26,12 @@ export class NodeHelpService {
 
     // Try locale-specific path first
     const localePath = `/extensions/${customNodeName}/docs/${node.name}/${locale}.md`
-    let res = await fetch(api.fileURL(localePath))
+    let res = await fetchWithHeaders(api.fileURL(localePath))
 
     if (!res.ok) {
       // Fall back to non-locale path
       const fallbackPath = `/extensions/${customNodeName}/docs/${node.name}.md`
-      res = await fetch(api.fileURL(fallbackPath))
+      res = await fetchWithHeaders(api.fileURL(fallbackPath))
     }
 
     if (!res.ok) {
@@ -45,7 +46,7 @@ export class NodeHelpService {
     locale: string
   ): Promise<string> {
     const mdUrl = `/docs/${node.name}/${locale}.md`
-    const res = await fetch(api.fileURL(mdUrl))
+    const res = await fetchWithHeaders(api.fileURL(mdUrl))
 
     if (!res.ok) {
       throw new Error(res.statusText)

src/services/releaseService.ts

@@ -2,10 +2,11 @@ import axios, { AxiosError, AxiosResponse } from 'axios'
 import { ref } from 'vue'
 
 import { COMFY_API_BASE_URL } from '@/config/comfyApi'
+import { createAxiosWithHeaders } from '@/services/networkClientAdapter'
 import type { components, operations } from '@/types/comfyRegistryTypes'
 import { isAbortError } from '@/utils/typeGuardUtil'
 
-const releaseApiClient = axios.create({
+const releaseApiClient = createAxiosWithHeaders({
   baseURL: COMFY_API_BASE_URL,
   headers: {
     'Content-Type': 'application/json'