diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index c80e1f3d2be..623703c6d35 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -109,6 +109,10 @@ jobs:
         if: steps.changed-files.outputs.any_changed == 'true'
         run: vp run knip:production
 
+      - name: Web production unused declarations check
+        if: steps.changed-files.outputs.any_changed == 'true'
+        run: vp run knip:production-unused-check
+
   ts-common-style:
     name: TS Common
     runs-on: depot-ubuntu-24.04
diff --git a/eslint-suppressions.json b/eslint-suppressions.json
index 796b8166c73..b7a6eb5f16a 100644
--- a/eslint-suppressions.json
+++ b/eslint-suppressions.json
@@ -3274,7 +3274,7 @@
   },
   "web/app/components/develop/code.tsx": {
     "ts/no-explicit-any": {
-      "count": 7
+      "count": 6
     }
   },
   "web/app/components/develop/doc.tsx": {
@@ -3286,9 +3286,6 @@
     "jsx-a11y/no-redundant-roles": {
       "count": 1
     },
-    "ts/no-empty-object-type": {
-      "count": 1
-    },
     "ts/no-explicit-any": {
       "count": 2
     }
@@ -7227,7 +7224,7 @@
       "count": 1
     },
     "ts/no-explicit-any": {
-      "count": 13
+      "count": 9
     }
   },
   "web/service/datasets.ts": {
diff --git a/web/app/components/develop/__tests__/code.spec.tsx b/web/app/components/develop/__tests__/code.spec.tsx
index 34a1f223802..8508095411c 100644
--- a/web/app/components/develop/__tests__/code.spec.tsx
+++ b/web/app/components/develop/__tests__/code.spec.tsx
@@ -1,6 +1,6 @@
 import { act, render, screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
-import { Code, CodeGroup, Embed, Pre } from '../code'
+import { CodeGroup, Embed } from '../code'
 
 vi.mock('@/utils/clipboard', () => ({
   writeTextToClipboard: vi.fn().mockResolvedValue(undefined),
@@ -21,31 +21,6 @@ describe('code.tsx components', () => {
     vi.restoreAllMocks()
   })
 
-  describe('Code', () => {
-    it('should render children as a code element', () => {
-      render(<Code>const x = 1</Code>)
-      const codeElement = screen.getByText('const x = 1')
-      expect(codeElement.tagName).toBe('CODE')
-    })
-
-    it('should pass through additional props', () => {
-      render(<Code data-testid="custom-code" className="custom-class">snippet</Code>)
-      const codeElement = screen.getByTestId('custom-code')
-      expect(codeElement).toHaveClass('custom-class')
-    })
-
-    it('should render with complex children', () => {
-      render(
-        <Code>
-          <span>part1</span>
-          <span>part2</span>
-        </Code>,
-      )
-      expect(screen.getByText('part1')).toBeInTheDocument()
-      expect(screen.getByText('part2')).toBeInTheDocument()
-    })
-  })
-
   describe('Embed', () => {
     it('should render value prop as a span element', () => {
       render(<Embed value="embedded content">ignored children</Embed>)
@@ -277,28 +252,6 @@ describe('code.tsx components', () => {
     })
   })
 
-  describe('Pre', () => {
-    it('should wrap children in CodeGroup when outside CodeGroup context', () => {
-      render(
-        <Pre title="Pre Title">
-          <pre><code>code</code></pre>
-        </Pre>,
-      )
-      expect(screen.getByText('Pre Title')).toBeInTheDocument()
-    })
-
-    it('should return children directly when inside CodeGroup context', () => {
-      render(
-        <CodeGroup targetCode="outer code">
-          <Pre>
-            <code>inner code</code>
-          </Pre>
-        </CodeGroup>,
-      )
-      expect(screen.getByText('outer code')).toBeInTheDocument()
-    })
-  })
-
   describe('CodePanelHeader (via CodeGroup)', () => {
     it('should render when tag is provided', () => {
       render(
diff --git a/web/app/components/develop/__tests__/md.spec.tsx b/web/app/components/develop/__tests__/md.spec.tsx
index 65dd9c5738c..bdeed87c0cb 100644
--- a/web/app/components/develop/__tests__/md.spec.tsx
+++ b/web/app/components/develop/__tests__/md.spec.tsx
@@ -1,5 +1,5 @@
 import { render, screen } from '@testing-library/react'
-import { Col, Heading, Properties, Property, PropertyInstruction, Row, SubProperty } from '../md'
+import { Col, Heading, Properties, Property, Row, SubProperty } from '../md'
 
 describe('md.tsx components', () => {
   describe('Heading', () => {
@@ -540,67 +540,6 @@ describe('md.tsx components', () => {
     })
   })
 
-  describe('PropertyInstruction', () => {
-    it('should render children', () => {
-      render(
-        <PropertyInstruction>
-          This is an instruction
-        </PropertyInstruction>,
-      )
-      expect(screen.getByText('This is an instruction')).toBeInTheDocument()
-    })
-
-    it('should render as li element', () => {
-      const { container } = render(
-        <PropertyInstruction>
-          Instruction text
-        </PropertyInstruction>,
-      )
-      expect(container.querySelector('li')).toBeInTheDocument()
-    })
-
-    it('should have m-0 class', () => {
-      const { container } = render(
-        <PropertyInstruction>
-          Instruction
-        </PropertyInstruction>,
-      )
-      const li = container.querySelector('li')!
-      expect(li.className).toContain('m-0')
-    })
-
-    it('should have padding classes', () => {
-      const { container } = render(
-        <PropertyInstruction>
-          Instruction
-        </PropertyInstruction>,
-      )
-      const li = container.querySelector('li')!
-      expect(li.className).toContain('px-0')
-      expect(li.className).toContain('py-4')
-    })
-
-    it('should have italic class', () => {
-      const { container } = render(
-        <PropertyInstruction>
-          Instruction
-        </PropertyInstruction>,
-      )
-      const li = container.querySelector('li')!
-      expect(li.className).toContain('italic')
-    })
-
-    it('should have first:pt-0 class', () => {
-      const { container } = render(
-        <PropertyInstruction>
-          Instruction
-        </PropertyInstruction>,
-      )
-      const li = container.querySelector('li')!
-      expect(li.className).toContain('first:pt-0')
-    })
-  })
-
   describe('integration tests', () => {
     it('should render Property inside Properties', () => {
       render(
@@ -635,21 +574,5 @@ describe('md.tsx components', () => {
       expect(screen.getByText('Left column')).toBeInTheDocument()
       expect(screen.getByText('Right column')).toBeInTheDocument()
     })
-
-    it('should render PropertyInstruction inside Properties', () => {
-      render(
-        <Properties anchor={false}>
-          <PropertyInstruction>
-            Note: All fields are required
-          </PropertyInstruction>
-          <Property name="required_field" type="string" anchor={false}>
-            A required field
-          </Property>
-        </Properties>,
-      )
-
-      expect(screen.getByText('Note: All fields are required')).toBeInTheDocument()
-      expect(screen.getByText('required_field')).toBeInTheDocument()
-    })
   })
 })
diff --git a/web/app/components/develop/code.tsx b/web/app/components/develop/code.tsx
index 126d2df43c8..010c37160a4 100644
--- a/web/app/components/develop/code.tsx
+++ b/web/app/components/develop/code.tsx
@@ -1,5 +1,5 @@
 'use client'
-import type { PropsWithChildren, ReactElement, ReactNode } from 'react'
+import type { PropsWithChildren, ReactElement } from 'react'
 import { cn } from '@langgenius/dify-ui/cn'
 import {
   Tabs,
@@ -9,8 +9,6 @@ import {
 } from '@langgenius/dify-ui/tabs'
 import {
   Children,
-  createContext,
-  use,
   useEffect,
   useRef,
   useState,
@@ -269,8 +267,6 @@ function useTabGroupProps(tabValues: string[]) {
   }
 }
 
-const CodeGroupContext = createContext(false)
-
 type CodeGroupProps = PropsWithChildren<{
   /** Code example(s) to display */
   targetCode?: string | CodeExample[]
@@ -297,42 +293,20 @@ export function CodeGroup({ children, title, targetCode, ...props }: CodeGroupPr
     </>
   )
 
-  return (
-    <CodeGroupContext.Provider value={true}>
-      {hasTabs
-        ? (
-            <Tabs
-              {...tabGroupProps}
-              className="not-prose my-6 overflow-hidden rounded-2xl bg-zinc-900 shadow-md dark:ring-1 dark:ring-white/10"
-            >
-              {content}
-            </Tabs>
-          )
-        : (
-            <div className="not-prose my-6 overflow-hidden rounded-2xl bg-zinc-900 shadow-md dark:ring-1 dark:ring-white/10">
-              {content}
-            </div>
-          )}
-    </CodeGroupContext.Provider>
-  )
-}
-
-type IChildProps = {
-  children: ReactNode
-  [key: string]: any
-}
-
-export function Code({ children, ...props }: IChildProps) {
-  return <code {...props}>{children}</code>
-}
-
-export function Pre({ children, ...props }: IChildrenProps) {
-  const isGrouped = use(CodeGroupContext)
-
-  if (isGrouped)
-    return children
-
-  return <CodeGroup {...props}>{children}</CodeGroup>
+  return hasTabs
+    ? (
+        <Tabs
+          {...tabGroupProps}
+          className="not-prose my-6 overflow-hidden rounded-2xl bg-zinc-900 shadow-md dark:ring-1 dark:ring-white/10"
+        >
+          {content}
+        </Tabs>
+      )
+    : (
+        <div className="not-prose my-6 overflow-hidden rounded-2xl bg-zinc-900 shadow-md dark:ring-1 dark:ring-white/10">
+          {content}
+        </div>
+      )
 }
 
 export function Embed({ value, ...props }: IChildrenProps) {
diff --git a/web/app/components/develop/md.tsx b/web/app/components/develop/md.tsx
index 9e07effb862..d10abe3268a 100644
--- a/web/app/components/develop/md.tsx
+++ b/web/app/components/develop/md.tsx
@@ -1,5 +1,4 @@
 'use client'
-import type { PropsWithChildren } from 'react'
 import { cn } from '@langgenius/dify-ui/cn'
 
 type IChildrenProps = {
@@ -140,9 +139,3 @@ export function SubProperty({ name, type, children }: ISubProperty) {
     </li>
   )
 }
-
-export function PropertyInstruction({ children }: PropsWithChildren<{ }>) {
-  return (
-    <li className="m-0 px-0 py-4 italic first:pt-0">{children}</li>
-  )
-}
diff --git a/web/features/deployments/create-release/state/__tests__/dsl-enabled.spec.ts b/web/features/deployments/create-release/state/__tests__/dsl-enabled.spec.ts
index bacafb08696..609b120b4f8 100644
--- a/web/features/deployments/create-release/state/__tests__/dsl-enabled.spec.ts
+++ b/web/features/deployments/create-release/state/__tests__/dsl-enabled.spec.ts
@@ -139,7 +139,7 @@ async function mountedStore() {
     },
   })
   store.set(queryClientAtom, queryClient)
-  const unsubscribe = store.sub(state.createReleaseFormValuesAtom, () => undefined)
+  const unsubscribe = store.sub(state.createReleaseFormIsSubmittingAtom, () => undefined)
 
   return {
     state,
diff --git a/web/features/deployments/create-release/state/__tests__/index.spec.ts b/web/features/deployments/create-release/state/__tests__/index.spec.ts
index dfb1bb12264..3ed7abae1dd 100644
--- a/web/features/deployments/create-release/state/__tests__/index.spec.ts
+++ b/web/features/deployments/create-release/state/__tests__/index.spec.ts
@@ -126,7 +126,7 @@ async function mountedStore() {
     },
   })
   store.set(queryClientAtom, queryClient)
-  const unsubscribe = store.sub(state.createReleaseFormValuesAtom, () => undefined)
+  const unsubscribe = store.sub(state.createReleaseFormIsSubmittingAtom, () => undefined)
 
   return {
     queryClient,
@@ -232,20 +232,6 @@ describe('create release state', () => {
     }
   })
 
-  it('should keep default form values before editing', async () => {
-    const { state, store, unsubscribe } = await mountedStore()
-
-    expect(store.get(state.createReleaseFormValuesAtom)).toEqual({
-      dslFile: undefined,
-      releaseDescription: '',
-      releaseName: '',
-      releaseSourceMode: 'sourceApp',
-      sourceApp: undefined,
-    })
-
-    unsubscribe()
-  })
-
   it('should validate release name only when submitting', async () => {
     const { state, store, unsubscribe } = await mountedStore()
 
diff --git a/web/features/deployments/create-release/state/index.ts b/web/features/deployments/create-release/state/index.ts
index ce9daa7b7dc..c88c54cccf9 100644
--- a/web/features/deployments/create-release/state/index.ts
+++ b/web/features/deployments/create-release/state/index.ts
@@ -106,7 +106,6 @@ export const createReleaseFormAtom = atomWithForm({
 
 const createReleaseFormAtoms = createFormAtoms(createReleaseFormAtom)
 
-export const createReleaseFormValuesAtom = createReleaseFormAtoms.valuesAtom
 export const createReleaseFormIsSubmittingAtom = createReleaseFormAtoms.isSubmittingAtom
 export const createReleaseSourceModeFieldAtom = createReleaseFormAtoms.fieldAtom('releaseSourceMode')
 export const createReleaseSourceAppFieldAtom = createReleaseFormAtoms.fieldAtom('sourceApp')
diff --git a/web/knip.config.ts b/web/knip.config.ts
index 16ed6ef8cc0..c9518585093 100644
--- a/web/knip.config.ts
+++ b/web/knip.config.ts
@@ -4,6 +4,9 @@ import type { KnipConfig } from 'knip'
  * @see https://knip.dev/reference/configuration
  */
 const config: KnipConfig = {
+  compilers: {
+    mdx: true,
+  },
   entry: [
     'scripts/**/*.{js,ts,mjs}',
     'bin/**/*.{js,ts,mjs}',
@@ -11,12 +14,12 @@ const config: KnipConfig = {
     'dev-proxy.config.ts',
   ],
   project: [
-    '**/*.{js,mjs,cjs,jsx,ts,tsx,mts,cts,css}!',
+    '**/*.{js,mjs,cjs,jsx,ts,tsx,mts,cts,css,mdx}!',
     '!**/*.{bench,test,test-d,spec,spec-d}.?(c|m)[jt]s?(x)!',
     '!**/*.test-utils.{ts,tsx}!',
     '!**/__mocks__/**!',
     '!**/__tests__/**!',
-    '!**/*.stories.{js,jsx,ts,tsx}!',
+    '!**/*.stories.{js,jsx,ts,tsx,mdx}!',
     '!.storybook/**!',
     '!context/provider-context-mock.tsx!',
     '!eslint.constants.mjs!',
diff --git a/web/models/app.ts b/web/models/app.ts
index f123b4c8a19..a01c3927017 100644
--- a/web/models/app.ts
+++ b/web/models/app.ts
@@ -93,11 +93,6 @@ export type CreateApiKeyResponse = {
   created_at: string
 }
 
-export type ValidateOpenAIKeyResponse = {
-  result: string
-  error?: string
-}
-
 export type AppVoicesListResponse = [{
   name: string
   value: string
diff --git a/web/package.json b/web/package.json
index a5da6a61cb1..41dd2cdc17a 100644
--- a/web/package.json
+++ b/web/package.json
@@ -35,6 +35,7 @@
     "i18n:check": "tsx ./scripts/check-i18n.js",
     "knip": "knip",
     "knip:production": "knip --production --include files",
+    "knip:production-unused-check": "node ./scripts/check-production-unused-after-knip-fix.mjs",
     "lint:tss": "tsslint --project tsconfig.json",
     "preinstall": "npx only-allow pnpm",
     "refactor-component": "node ./scripts/refactor-component.js",
diff --git a/web/scripts/check-production-unused-after-knip-fix.mjs b/web/scripts/check-production-unused-after-knip-fix.mjs
new file mode 100644
index 00000000000..fe4625807fb
--- /dev/null
+++ b/web/scripts/check-production-unused-after-knip-fix.mjs
@@ -0,0 +1,157 @@
+import { spawn } from 'node:child_process'
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+const scriptDir = path.dirname(fileURLToPath(import.meta.url))
+const repoRoot = path.resolve(scriptDir, '../..')
+const webDir = path.join(repoRoot, 'web')
+
+function commandName(name) {
+  return process.platform === 'win32' ? `${name}.cmd` : name
+}
+
+function run(command, args, options = {}) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(command, args, {
+      cwd: options.cwd,
+      env: process.env,
+      shell: false,
+    })
+
+    let stdout = ''
+    let stderr = ''
+    child.stdout.on('data', data => stdout += data)
+    child.stderr.on('data', data => stderr += data)
+    child.on('error', reject)
+    child.on('close', status => resolve({ status, stdout, stderr }))
+  })
+}
+
+function parseVpLintJson(stdout) {
+  const jsonStart = stdout.indexOf('{')
+  if (jsonStart === -1)
+    return { diagnostics: [] }
+
+  return JSON.parse(stdout.slice(jsonStart))
+}
+
+function relativeDiagnostic(diagnostic) {
+  const label = diagnostic.labels?.[0]
+  const diagnosticFile = label?.file ?? diagnostic.filename
+  const filePath = diagnosticFile
+    ? path.relative(webDir, path.isAbsolute(diagnosticFile) ? diagnosticFile : path.join(webDir, diagnosticFile))
+    : '<unknown>'
+  const span = label?.span ? `:${label.span.line}:${label.span.column}` : ''
+
+  return `${filePath}${span} ${diagnostic.code ?? ''} ${diagnostic.message ?? ''}`.trim()
+}
+
+async function ensureCleanWorktree() {
+  const result = await run('git', ['status', '--porcelain=v1'], { cwd: repoRoot })
+  if (result.status !== 0) {
+    process.stderr.write(result.stderr)
+    throw new Error('Failed to check git status.')
+  }
+
+  if (!result.stdout.trim())
+    return
+
+  console.error('This check runs knip --fix and must start from a clean worktree.')
+  console.error('Commit or stash your changes first, then run it again.')
+  console.error(result.stdout)
+  process.exit(1)
+}
+
+async function restoreWorktree() {
+  const restoreResult = await run('git', ['restore', '--staged', '--worktree', '.'], { cwd: repoRoot })
+  if (restoreResult.status !== 0) {
+    process.stdout.write(restoreResult.stdout)
+    process.stderr.write(restoreResult.stderr)
+    throw new Error('Failed to restore tracked files after knip --fix.')
+  }
+
+  const cleanResult = await run('git', ['clean', '-fd', '--', 'web', '.eslintcache'], { cwd: repoRoot })
+  if (cleanResult.status !== 0) {
+    process.stdout.write(cleanResult.stdout)
+    process.stderr.write(cleanResult.stderr)
+    throw new Error('Failed to clean untracked files after knip --fix.')
+  }
+}
+
+const knip = path.join(webDir, 'node_modules', '.bin', commandName('knip'))
+const vp = path.join(repoRoot, 'node_modules', '.bin', commandName('vp'))
+let shouldRestore = false
+let hasUnusedMessages = false
+
+try {
+  await ensureCleanWorktree()
+  shouldRestore = true
+
+  console.log('Running knip --production --fix...')
+  const knipResult = await run(knip, ['--production', '--fix'], { cwd: webDir })
+  if (knipResult.status !== 0) {
+    process.stdout.write(knipResult.stdout)
+    process.stderr.write(knipResult.stderr)
+    throw new Error('knip --production --fix failed.')
+  }
+
+  console.log('Running Vite+ unused checks after knip --fix...')
+  const lintResult = await run(vp, [
+    'lint',
+    '-A',
+    'all',
+    '-D',
+    'no-unused-vars',
+    '--format',
+    'json',
+    '--ignore-pattern',
+    'public/**',
+    '--ignore-pattern',
+    'coverage/**',
+    '--ignore-pattern',
+    '.next/**',
+    '--ignore-pattern',
+    '**/__tests__/**',
+    '--ignore-pattern',
+    '**/*.spec.ts',
+    '--ignore-pattern',
+    '**/*.spec.tsx',
+    '--ignore-pattern',
+    '**/*.test.ts',
+    '--ignore-pattern',
+    '**/*.test.tsx',
+    '.',
+  ], { cwd: webDir })
+
+  let lintOutput
+  try {
+    lintOutput = parseVpLintJson(lintResult.stdout)
+  }
+  catch {
+    process.stdout.write(lintResult.stdout)
+    process.stderr.write(lintResult.stderr)
+    throw new Error('Failed to parse Vite+ lint JSON output.')
+  }
+
+  const unusedMessages = (lintOutput.diagnostics ?? []).map(relativeDiagnostic)
+
+  if (unusedMessages.length > 0) {
+    hasUnusedMessages = true
+    console.error('Unused declarations remain after applying knip --production --fix.')
+    console.error('Remove these declarations; if they are only referenced by tests, remove the matching tests too.')
+    for (const message of unusedMessages)
+      console.error(message)
+  }
+  else {
+    console.log('No Vite+ unused declarations remain after knip --production --fix.')
+  }
+}
+finally {
+  if (shouldRestore) {
+    console.log('Restoring checkout after knip --fix...')
+    await restoreWorktree()
+  }
+}
+
+if (hasUnusedMessages)
+  process.exit(1)
diff --git a/web/service/common.ts b/web/service/common.ts
index ece28057184..f43c9a13b91 100644
--- a/web/service/common.ts
+++ b/web/service/common.ts
@@ -2,13 +2,9 @@ import type {
   DefaultModelResponse,
   Model,
   ModelItem,
-  ModelLoadBalancingConfig,
   ModelParameterRule,
   ModelTypeEnum,
 } from '@/app/components/header/account-setting/model-provider-page/declarations'
-import type {
-  ValidateOpenAIKeyResponse,
-} from '@/models/app'
 import type {
   CommonResponse,
   ICurrentWorkspace,
@@ -104,13 +100,7 @@ export const invitationCheck = ({ url, params }: { url: string, params: { worksp
 export const activateMember = ({ url, body }: { url: string, body: ActivateMemberBody }): Promise<LoginResponse> => {
   return post<LoginResponse>(url, { body })
 }
-export type ModelProviderCredentials = {
-  credentials?: Record<string, string | undefined | boolean>
-  load_balancing: ModelLoadBalancingConfig
-}
-export const fetchModelProviderCredentials = (url: string): Promise<ModelProviderCredentials> => {
-  return get<ModelProviderCredentials>(url)
-}
+
 export const fetchModelProviderModelList = (url: string): Promise<{ data: ModelItem[] }> => {
   return get<{ data: ModelItem[] }>(url)
 }
@@ -119,26 +109,6 @@ export const fetchModelList = (url: string): Promise<{ data: Model[] }> => {
   return get<{ data: Model[] }>(url)
 }
 
-export const validateModelProvider = ({ url, body }: { url: string, body: any }): Promise<ValidateOpenAIKeyResponse> => {
-  return post<ValidateOpenAIKeyResponse>(url, { body })
-}
-
-export const validateModelLoadBalancingCredentials = ({ url, body }: { url: string, body: any }): Promise<ValidateOpenAIKeyResponse> => {
-  return post<ValidateOpenAIKeyResponse>(url, { body })
-}
-
-export const setModelProvider = ({ url, body }: { url: string, body: any }): Promise<CommonResponse> => {
-  return post<CommonResponse>(url, { body })
-}
-
-export const deleteModelProvider = ({ url, body }: { url: string, body?: any }): Promise<CommonResponse> => {
-  return del<CommonResponse>(url, { body })
-}
-
-export const getPayUrl = (url: string): Promise<{ url: string }> => {
-  return get<{ url: string }>(url)
-}
-
 export const fetchDefaultModal = (url: string): Promise<{ data: DefaultModelResponse }> => {
   return get<{ data: DefaultModelResponse }>(url)
 }