refactor(cherryai): move signature module into ai/provider

The integration/ directory housed only the CherryAI request-signature
module, whose sole live consumer is the provider config builder. Move
it to src/main/ai/provider/cherryai/ and drop the stale lint ignore
and tsconfig include entries that still pointed at the obfuscated
index.js removed during de-obfuscation.

.oxlintrc.json

@@ -16,8 +16,6 @@
     ".gitignore",
     "scripts/cloudflare-worker.js",
     "src/main/services/nutstore/sso/lib/**",
-    "src/main/integration/cherryai/index.js",
-    "src/main/services/nutstore/sso/lib/**",
     "src/renderer/ui/**",
     "packages/**/dist",
     "eslint.config.mjs",

eslint.config.mjs

@@ -123,7 +123,6 @@ export default defineConfig([
       '.conductor/**',
       'scripts/cloudflare-worker.js',
       'src/main/services/nutstore/sso/lib/**',
-      'src/main/integration/cherryai/index.js',
       'src/renderer/ui/**',
       'src/renderer/routeTree.gen.ts',
       'packages/**/dist',

src/main/ai/provider/config.ts

@@ -6,7 +6,6 @@
 import { formatPrivateKey, hasProviderConfig, type StringKeys } from '@cherrystudio/ai-core/provider'
 import type { CherryInProviderSettings } from '@cherrystudio/ai-sdk-provider'
 import { providerService } from '@main/data/services/ProviderService'
-import { generateSignature } from '@main/integration/cherryai'
 import { copilotService } from '@main/services/CopilotService'
 import type { EndpointType, Model } from '@shared/data/types/model'
 import { ENDPOINT_TYPE } from '@shared/data/types/model'
@@ -20,6 +19,7 @@ import { isEmpty } from 'lodash'
 import type { ProviderConfig } from '../types'
 import { type AppProviderId, appProviderIds, type AppProviderSettingsMap } from '../types'
 import { getBaseUrl, getExtraHeaders, routeToEndpoint } from '../utils/provider'
+import { generateSignature } from './cherryai'
 import { COPILOT_DEFAULT_HEADERS } from './constants'
 import { resolveAiSdkProviderId, resolveEffectiveEndpoint } from './endpoint'
 

src/main/ipc.ts

@@ -4,8 +4,8 @@ import path from 'node:path'
 
 import { application } from '@application'
 import { loggerService } from '@logger'
+import { generateSignature } from '@main/ai/provider/cherryai'
 import { isMac, isWin } from '@main/core/platform'
-import { generateSignature } from '@main/integration/cherryai'
 import { listDirectory as searchListDirectory } from '@main/services/file/tree/search'
 import { getIpCountry } from '@main/utils/ipService'
 import {

tsconfig.web.json

@@ -35,7 +35,6 @@
   "include": [
     "local/src/renderer/**/*",
     "src/renderer/**/*",
-    "src/main/integration/cherryai/index.js",
     "src/preload/*.d.ts",
     "tests/__mocks__/**/*",
     "packages/aiCore/src/**/*",