diff --git a/docs/.vitepress/components/HomeButton.vue b/docs/.vitepress/components/HomeButton.vue
index 1f9f0b360..e09e6c635 100644
--- a/docs/.vitepress/components/HomeButton.vue
+++ b/docs/.vitepress/components/HomeButton.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import type { ButtonItem } from '../theme/config.ts'
+import type { ButtonItem } from '../theme/config'
 
 defineProps<{
   item: ButtonItem
diff --git a/docs/.vitepress/components/HomeButtonSet.vue b/docs/.vitepress/components/HomeButtonSet.vue
index c48f4d67f..fd5b3624a 100644
--- a/docs/.vitepress/components/HomeButtonSet.vue
+++ b/docs/.vitepress/components/HomeButtonSet.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import type { ButtonItem } from '../theme/config.ts'
+import type { ButtonItem } from '../theme/config'
 
 import HomeButton from './HomeButton.vue'
 
diff --git a/docs/.vitepress/config.ts b/docs/.vitepress/config.ts
index a3e42ce53..dc5a26a8c 100644
--- a/docs/.vitepress/config.ts
+++ b/docs/.vitepress/config.ts
@@ -1,6 +1,6 @@
 import type { DefaultTheme } from 'vitepress'
 
-import type { ThemeConfig } from './theme/config.ts'
+import type { ThemeConfig } from './theme/config'
 
 import { join, posix, resolve } from 'node:path'
 import { env } from 'node:process'
@@ -15,7 +15,7 @@ import { tasklist } from '@mdit/plugin-tasklist'
 import { defineConfig, postcssIsolateStyles } from 'vitepress'
 
 import { version } from '../../package.json'
-import { webLive } from './constants.ts'
+import { webLive } from './constants'
 import { teamMembers } from './contributors'
 import {
   discord,
diff --git a/eslint.config.ts b/eslint.config.ts
index b28da486e..20c49731c 100644
--- a/eslint.config.ts
+++ b/eslint.config.ts
@@ -53,6 +53,15 @@ export default defineConfig({
         selector: 'ConditionalExpression[test.type=\'BinaryExpression\'][test.operator=\'instanceof\'][test.right.name=\'Error\'][consequent.type=\'MemberExpression\'][consequent.property.name=\'message\']',
         message: 'Avoid `error instanceof Error ? error.message : ...`. Use `errorMessageFrom(error)` from \'@moeru/std\' (or `errorMessageFromUnknown(error, fallback)` from \'@proj-airi/stage-shared\'). Pair with `?? \'fallback\'` when a default is needed.',
       },
+      {
+        selector: [
+          'ImportDeclaration[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+          'ExportNamedDeclaration[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+          'ExportAllDeclaration[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+          'ImportExpression[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+        ].join(', '),
+        message: 'Omit TypeScript and JavaScript source extensions from relative imports, dynamic imports, and re-exports.',
+      },
       'TSEnumDeclaration[const=true]',
       'TSExportAssignment',
     ],
@@ -78,6 +87,15 @@ export default defineConfig({
         selector: 'CallExpression[callee.type=\'MemberExpression\'][callee.object.name=\'vi\'][callee.property.name=\'hoisted\']',
         message: 'Do not use vi.hoisted. If a test needs a collaborator spy, expose an explicit dependency injection point instead of hoisting module mocks.',
       },
+      {
+        selector: [
+          'ImportDeclaration[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+          'ExportNamedDeclaration[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+          'ExportAllDeclaration[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+          'ImportExpression[source.value=/^\\.{1,2}\\/.*\\.[cm]?[jt]sx?$/]',
+        ].join(', '),
+        message: 'Omit TypeScript and JavaScript source extensions from relative imports, dynamic imports, and re-exports.',
+      },
     ],
   },
 }, {
diff --git a/packages/scenarios-stage-tamagotchi-electron/README.md b/packages/scenarios-stage-tamagotchi-electron/README.md
index f719d1273..715033f8f 100644
--- a/packages/scenarios-stage-tamagotchi-electron/README.md
+++ b/packages/scenarios-stage-tamagotchi-electron/README.md
@@ -35,6 +35,24 @@ Expected result:
 - `27` raw files in `packages/scenarios-stage-tamagotchi-browser/artifacts/raw`
 - names like `00-stage-tamagotchi.avif` ... `26-devtools-vision-capture.avif`
 
+### Capture a local display model
+
+Use the file-input scenario when the requested evidence must render a local Live2D, VRM, or MMD model instead of a preset:
+
+```bash
+AIRI_DISPLAY_MODEL_FORMAT=vrm \
+AIRI_DISPLAY_MODEL_PATH=/absolute/path/to/avatar.vrm \
+pnpm exec vishot capture \
+  ./packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.ts \
+  --target electron \
+  --app-entrypoint ./apps/stage-tamagotchi/out/main/index.js \
+  --cwd . \
+  --settle-ms 2500 \
+  --output-dir ./.vishot/display-model/vrm
+```
+
+Set `AIRI_DISPLAY_MODEL_FORMAT` to `live2d`, `vrm`, or `mmd`. The scenario skips first-run onboarding in the capture profile, imports and selects the supplied file through the model chooser, captures the main stage, then restores persisted state and removes the imported fixture.
+
 ## Scenario Authoring
 
 ```ts
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/context.test.ts b/packages/scenarios-stage-tamagotchi-electron/src/context.test.ts
index e6c94ba81..09b9f3895 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/context.test.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/context.test.ts
@@ -2,7 +2,7 @@ import type { ScenarioContext } from '@vishot/source-electron'
 
 import { describe, expect, it, vi } from 'vitest'
 
-import { createStageTamagotchiScenarioContext, defineStageTamagotchiScenario } from './context.ts'
+import { createStageTamagotchiScenarioContext, defineStageTamagotchiScenario } from './context'
 
 function createElectronApp(): ScenarioContext['electronApp'] {
   return Object.assign(Object.create(null), {
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/context.ts b/packages/scenarios-stage-tamagotchi-electron/src/context.ts
index 9850d4c26..cdf22bd5d 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/context.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/context.ts
@@ -1,14 +1,14 @@
 import type { ElectronScenario, ScenarioContext } from '@vishot/source-electron'
 import type { Page } from 'playwright'
 
-import type { StageWindowName, StageWindowSnapshot } from './runtime/windows.ts'
+import type { StageWindowName, StageWindowSnapshot } from './runtime/windows'
 
 import { defineScenario } from '@vishot/source-electron'
 
-import { dismissDialog, dismissDrawer, swipeDownDrawer } from './runtime/overlays.ts'
-import { expandControlsIsland, openChatFromControlsIsland, openHearingFromControlsIsland, openSettingsFromControlsIsland, waitForControlsIslandReady } from './runtime/selectors.ts'
-import { goToSettingsConnectionPage, goToSettingsRoute } from './runtime/settings.ts'
-import { waitForStageWindow } from './runtime/windows.ts'
+import { dismissDialog, dismissDrawer, swipeDownDrawer } from './runtime/overlays'
+import { expandControlsIsland, openChatFromControlsIsland, openHearingFromControlsIsland, openSettingsFromControlsIsland, waitForControlsIslandReady } from './runtime/selectors'
+import { goToSettingsConnectionPage, goToSettingsRoute } from './runtime/settings'
+import { waitForStageWindow } from './runtime/windows'
 
 export interface StageWindowsApi {
   waitFor: (name: StageWindowName, timeout?: number) => Promise<StageWindowSnapshot>
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/index.ts b/packages/scenarios-stage-tamagotchi-electron/src/index.ts
index 8f32663ba..4a5bc0453 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/index.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/index.ts
@@ -1,7 +1,17 @@
-export { default as demoControlsSettingsChatWebsocketScenario } from './scenarios/demo-controls-settings-chat-websocket/index.ts'
-export { default as demoDismissSurfacesScenario } from './scenarios/demo-dismiss-surfaces.ts'
-export { default as demoHearingDialogScenario } from './scenarios/demo-hearing-dialog.ts'
-export { default as pluginChessWidgetFlowScenario } from './scenarios/plugin-chess-widget-flow.ts'
-export { default as pluginChessWorkerSmokeScenario } from './scenarios/plugin-chess-worker-smoke.ts'
-export { default as pluginWidgetStaticAssetsLocalAddressScenario } from './scenarios/plugin-widget-static-assets-local-address.ts'
-export { default as settingsConnectionScenario } from './scenarios/settings-connection.ts'
+export { default as demoControlsSettingsChatWebsocketScenario } from './scenarios/demo-controls-settings-chat-websocket/index'
+export { default as demoDismissSurfacesScenario } from './scenarios/demo-dismiss-surfaces'
+export { default as demoHearingDialogScenario } from './scenarios/demo-hearing-dialog'
+export {
+  default as displayModelFromFileScenario,
+  importDisplayModelFromFile,
+  resolveDisplayModelInputFromEnvironment,
+} from './scenarios/display-model-from-file'
+export type {
+  DisplayModelInput,
+  DisplayModelInputFormat,
+  ImportedDisplayModel,
+} from './scenarios/display-model-from-file'
+export { default as pluginChessWidgetFlowScenario } from './scenarios/plugin-chess-widget-flow'
+export { default as pluginChessWorkerSmokeScenario } from './scenarios/plugin-chess-worker-smoke'
+export { default as pluginWidgetStaticAssetsLocalAddressScenario } from './scenarios/plugin-widget-static-assets-local-address'
+export { default as settingsConnectionScenario } from './scenarios/settings-connection'
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/index.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/index.ts
index 3339aa7eb..67b8631ee 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/index.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/index.ts
@@ -1,9 +1,9 @@
-import type { ManualRuntime } from './shared/types.ts'
+import type { ManualRuntime } from './shared/types'
 
-import { defineStageTamagotchiScenario } from '../../context.ts'
-import { manualCaptureSections } from './manifest.ts'
-import { formatStepFailure, resetScenarioOutputDirectories } from './shared/output.ts'
-import { runCaptureStep } from './shared/steps.ts'
+import { defineStageTamagotchiScenario } from '../../context'
+import { manualCaptureSections } from './manifest'
+import { formatStepFailure, resetScenarioOutputDirectories } from './shared/output'
+import { runCaptureStep } from './shared/steps'
 
 export default defineStageTamagotchiScenario({
   id: 'demo-controls-settings-chat-websocket',
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/manifest.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/manifest.ts
index 71f4fdb5c..ce2235902 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/manifest.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/manifest.ts
@@ -1,6 +1,6 @@
-import { devtoolsSection } from './sections/devtools.ts'
-import { overviewSection } from './sections/overview.ts'
-import { settingsSection } from './sections/settings.ts'
+import { devtoolsSection } from './sections/devtools'
+import { overviewSection } from './sections/overview'
+import { settingsSection } from './sections/settings'
 
 export const manualCaptureSections = [
   overviewSection,
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/devtools.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/devtools.ts
index 9274e49dd..846722ddd 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/devtools.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/devtools.ts
@@ -1,4 +1,4 @@
-import type { ManualCaptureSection } from '../shared/types.ts'
+import type { ManualCaptureSection } from '../shared/types'
 
 const useWindowMousePattern = /useWindowMouse|\d+,\s*\d+/i
 const displaysPattern = /useElectronAllDisplays|@\s*\d+°|Visualize connected displays and cursor position/i
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/overview.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/overview.ts
index 03e0d96aa..7d58937fd 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/overview.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/overview.ts
@@ -1,4 +1,4 @@
-import type { ManualCaptureSection } from '../shared/types.ts'
+import type { ManualCaptureSection } from '../shared/types'
 
 const websocketServerAddressPattern = /WebSocket Server Address|WebSocket 服务器地址/i
 
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/settings.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/settings.ts
index cb8ed8103..dcf0cc886 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/settings.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/sections/settings.ts
@@ -1,4 +1,4 @@
-import type { ManualCaptureSection } from '../shared/types.ts'
+import type { ManualCaptureSection } from '../shared/types'
 
 const airiCardPattern = /sort|排序|upload|上传/i
 const providersPattern = /Chat|Speech|Transcription/i
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/output.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/output.ts
index 147755796..d4b83de6d 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/output.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/output.ts
@@ -2,7 +2,7 @@ import { mkdir, rm } from 'node:fs/promises'
 
 import { errorMessageFrom } from '@moeru/std'
 
-import { scenarioRawOutputDir } from './constants.ts'
+import { scenarioRawOutputDir } from './constants'
 
 export async function resetScenarioOutputDirectories() {
   await rm(scenarioRawOutputDir, { recursive: true, force: true })
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/runtime.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/runtime.ts
index 3e9fe93bd..fe7c76b0e 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/runtime.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/runtime.ts
@@ -1,4 +1,4 @@
-import type { ManualRuntime } from './types.ts'
+import type { ManualRuntime } from './types'
 
 import { sleep } from '@moeru/std'
 
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/steps.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/steps.ts
index 79777f280..dcfd71737 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/steps.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/steps.ts
@@ -1,8 +1,8 @@
-import type { CaptureExecutionResult, ManualCaptureStep, ManualRuntime } from './types.ts'
+import type { CaptureExecutionResult, ManualCaptureStep, ManualRuntime } from './types'
 
 import { sleep } from '@moeru/std'
 
-import { ensureControlsIslandExpanded, getChatWindowSnapshot, getSettingsWindowSnapshot, waitForRouteReadiness } from './runtime.ts'
+import { ensureControlsIslandExpanded, getChatWindowSnapshot, getSettingsWindowSnapshot, waitForRouteReadiness } from './runtime'
 
 async function captureStepPage(step: ManualCaptureStep, runtime: ManualRuntime): Promise<CaptureExecutionResult> {
   let page
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/types.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/types.ts
index e37ccdaf2..dd592d3b2 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/types.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-controls-settings-chat-websocket/shared/types.ts
@@ -1,6 +1,6 @@
 import type { VishotArtifact } from '@vishot/source-electron'
 
-import type { StageTamagotchiScenarioContext } from '../../../context.ts'
+import type { StageTamagotchiScenarioContext } from '../../../context'
 
 export type ManualSectionId = 'overview' | 'settings' | 'devtools'
 export type ManualCaptureStepKind = 'main-window' | 'controls-island' | 'chat-window' | 'settings-overview' | 'settings-route' | 'connection'
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-dismiss-surfaces.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-dismiss-surfaces.ts
index 781e8d4af..7222bfc5a 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-dismiss-surfaces.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-dismiss-surfaces.ts
@@ -1,4 +1,4 @@
-import { defineStageTamagotchiScenario } from '../context.ts'
+import { defineStageTamagotchiScenario } from '../context'
 
 export default defineStageTamagotchiScenario({
   id: 'demo-dismiss-surfaces',
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-hearing-dialog.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-hearing-dialog.ts
index 33a0c42e6..5cc6c53ee 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-hearing-dialog.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/demo-hearing-dialog.ts
@@ -1,4 +1,4 @@
-import { defineStageTamagotchiScenario } from '../context.ts'
+import { defineStageTamagotchiScenario } from '../context'
 
 export default defineStageTamagotchiScenario({
   id: 'demo-hearing-dialog',
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.test.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.test.ts
new file mode 100644
index 000000000..d71512d29
--- /dev/null
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.test.ts
@@ -0,0 +1,44 @@
+import type { ElectronApplication } from 'playwright'
+
+import { describe, expect, it } from 'vitest'
+
+import {
+  importDisplayModelFromFile,
+  resolveDisplayModelInputFromEnvironment,
+} from './display-model-from-file'
+
+describe('resolveDisplayModelInputFromEnvironment', () => {
+  it('resolves an explicit supported format and absolute input path', () => {
+    expect(resolveDisplayModelInputFromEnvironment({
+      AIRI_DISPLAY_MODEL_FORMAT: 'live2d',
+      AIRI_DISPLAY_MODEL_PATH: '/fixtures/avatar.zip',
+    })).toEqual({
+      format: 'live2d',
+      filePath: '/fixtures/avatar.zip',
+    })
+  })
+
+  it('rejects an unsupported model format before launching the scenario', () => {
+    expect(() => resolveDisplayModelInputFromEnvironment({
+      AIRI_DISPLAY_MODEL_FORMAT: 'gltf',
+      AIRI_DISPLAY_MODEL_PATH: '/fixtures/avatar.gltf',
+    })).toThrowError('AIRI_DISPLAY_MODEL_FORMAT must be live2d, vrm, or mmd')
+  })
+
+  it('requires the input path', () => {
+    expect(() => resolveDisplayModelInputFromEnvironment({
+      AIRI_DISPLAY_MODEL_FORMAT: 'vrm',
+    })).toThrowError('AIRI_DISPLAY_MODEL_PATH is required')
+  })
+})
+
+describe('importDisplayModelFromFile', () => {
+  it('rejects relative paths before touching Electron', async () => {
+    const electronApp = Object.create(null) as ElectronApplication
+
+    await expect(importDisplayModelFromFile(electronApp, {
+      format: 'mmd',
+      filePath: 'fixtures/avatar.pmx',
+    })).rejects.toThrowError('Display model input must be an absolute path')
+  })
+})
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.ts
new file mode 100644
index 000000000..4efbbfa5c
--- /dev/null
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/display-model-from-file.ts
@@ -0,0 +1,367 @@
+import type { ElectronApplication, Page } from 'playwright'
+
+import { env } from 'node:process'
+
+import { defineStageTamagotchiScenario } from '../context'
+import { waitForStageWindow } from '../runtime/windows'
+
+export type DisplayModelInputFormat = 'live2d' | 'vrm' | 'mmd'
+
+export interface DisplayModelInput {
+  /** Select the AIRI importer whose accepted extensions match the file. */
+  format: DisplayModelInputFormat
+  /** Provide an absolute path visible to the machine running Vishot. */
+  filePath: string
+}
+
+export interface ImportedDisplayModel {
+  id: string
+  mainPage: Page
+  settingsPage: Page
+  /** Restore persisted AIRI state and remove the imported IndexedDB fixture. */
+  cleanup: () => Promise<void>
+}
+
+const localStorageKeys = [
+  'airi-cards',
+  'onboarding/completed',
+  'onboarding/skipped',
+  'settings/stage/model',
+] as const
+
+const localforageDatabaseName = 'localforage'
+const localforageStoreName = 'keyvaluepairs'
+const importedModelKeyPrefix = 'display-model-'
+const modelRoutePath = '/settings/models'
+
+/**
+ * Imports and selects a display model through AIRI's user-facing model chooser.
+ *
+ * The returned cleanup owns every persisted value changed by this flow. Call it
+ * after capture so repeated scenarios do not inherit a prior imported fixture.
+ */
+export async function importDisplayModelFromFile(
+  electronApp: ElectronApplication,
+  input: DisplayModelInput,
+): Promise<ImportedDisplayModel> {
+  if (!input.filePath.startsWith('/') && !/^[A-Z]:[\\/]/i.test(input.filePath))
+    throw new Error('Display model input must be an absolute path')
+
+  const mainPage = await findMainRenderer(electronApp)
+  const persistedState = await snapshotPersistedState(mainPage)
+  let settingsPage: Page | undefined
+  let importedModelId: string | undefined
+
+  try {
+    await markOnboardingCompleted(mainPage)
+    await closeOnboardingWindows(electronApp)
+    await mainPage.reload({ waitUntil: 'domcontentloaded' })
+
+    const mainWindow = await waitForStageWindow(electronApp, 'main')
+    const existingModelIds = await readImportedModelIds(mainWindow.page)
+    settingsPage = await openModelSettings(electronApp, mainWindow.page)
+    importedModelId = await uploadModel(settingsPage, input, existingModelIds)
+
+    await selectImportedModel(settingsPage, fileName(input.filePath))
+    await waitForSelectedModel(mainWindow.page, importedModelId)
+
+    const selectedModelId = importedModelId
+    const selectedSettingsPage = settingsPage
+    return {
+      id: selectedModelId,
+      mainPage: mainWindow.page,
+      settingsPage: selectedSettingsPage,
+      async cleanup() {
+        await restorePersistedState(selectedSettingsPage, persistedState)
+        await removeImportedModel(selectedSettingsPage, selectedModelId)
+      },
+    }
+  }
+  catch (error) {
+    const cleanupPage = settingsPage ?? mainPage
+    await restorePersistedState(cleanupPage, persistedState).catch(() => undefined)
+    if (importedModelId)
+      await removeImportedModel(cleanupPage, importedModelId).catch(() => undefined)
+    throw error
+  }
+}
+
+/**
+ * Resolves the model input contract used by the reusable Vishot scenario.
+ *
+ * @example
+ * // AIRI_DISPLAY_MODEL_FORMAT=vrm AIRI_DISPLAY_MODEL_PATH=/models/avatar.vrm
+ * resolveDisplayModelInputFromEnvironment()
+ * // => { format: 'vrm', filePath: '/models/avatar.vrm' }
+ */
+export function resolveDisplayModelInputFromEnvironment(
+  environment: Record<string, string | undefined> = env,
+): DisplayModelInput {
+  const format = environment.AIRI_DISPLAY_MODEL_FORMAT
+  const filePath = environment.AIRI_DISPLAY_MODEL_PATH
+
+  if (format !== 'live2d' && format !== 'vrm' && format !== 'mmd')
+    throw new Error('AIRI_DISPLAY_MODEL_FORMAT must be live2d, vrm, or mmd')
+
+  if (!filePath)
+    throw new Error('AIRI_DISPLAY_MODEL_PATH is required')
+
+  return { format, filePath }
+}
+
+/**
+ * Captures AIRI after importing the model provided through environment variables.
+ *
+ * Call stack:
+ *
+ * displayModelFromFileScenario
+ *   -> {@link resolveDisplayModelInputFromEnvironment}
+ *     -> {@link importDisplayModelFromFile}
+ *       -> AIRI model chooser
+ *         -> Vishot capture
+ */
+const displayModelFromFileScenario = defineStageTamagotchiScenario({
+  id: 'display-model-from-file',
+  async run({ capture, electronApp }) {
+    const imported = await importDisplayModelFromFile(
+      electronApp,
+      resolveDisplayModelInputFromEnvironment(),
+    )
+
+    try {
+      await imported.mainPage.locator('canvas').first().waitFor({ state: 'visible', timeout: 30_000 })
+      await imported.mainPage.waitForTimeout(3_000)
+      await capture('display-model-from-file', imported.mainPage)
+    }
+    finally {
+      await imported.cleanup()
+    }
+  },
+})
+
+export default displayModelFromFileScenario
+
+async function findMainRenderer(electronApp: ElectronApplication, timeout = 30_000): Promise<Page> {
+  const deadline = Date.now() + timeout
+
+  while (Date.now() < deadline) {
+    for (const page of electronApp.windows()) {
+      const route = hashRoute(page.url())
+      if (route === '/')
+        return page
+    }
+
+    await new Promise(resolve => setTimeout(resolve, 250))
+  }
+
+  throw new Error('Timed out waiting for the AIRI main renderer')
+}
+
+async function markOnboardingCompleted(page: Page): Promise<void> {
+  await page.evaluate(() => {
+    globalThis.localStorage.setItem('onboarding/completed', 'true')
+    globalThis.localStorage.setItem('onboarding/skipped', 'false')
+  })
+}
+
+async function closeOnboardingWindows(electronApp: ElectronApplication): Promise<void> {
+  for (const page of electronApp.windows()) {
+    if (hashRoute(page.url()).startsWith('/onboarding'))
+      await page.close().catch(() => undefined)
+  }
+}
+
+async function openModelSettings(electronApp: ElectronApplication, mainPage: Page): Promise<Page> {
+  const settingsButton = mainPage.locator('button').filter({
+    has: mainPage.locator('[i-solar\\:settings-minimalistic-outline]'),
+  }).first()
+
+  if (!await settingsButton.isVisible().catch(() => false)) {
+    await mainPage.locator('button').filter({
+      has: mainPage.locator('[i-solar\\:alt-arrow-up-line-duotone]'),
+    }).first().click({ force: true })
+    await settingsButton.waitFor({ state: 'visible', timeout: 15_000 })
+  }
+
+  await settingsButton.click({ force: true })
+  const settingsWindow = await waitForStageWindow(electronApp, 'settings')
+  const settingsPage = settingsWindow.page
+
+  const settingsContentSize = { width: 1200, height: 900 }
+  const nativeSettingsWindow = await electronApp.browserWindow(settingsPage)
+
+  try {
+    // A Playwright viewport override does not resize the native Electron window.
+    await nativeSettingsWindow.evaluate((window, size) => {
+      window.setContentSize(size.width, size.height)
+    }, settingsContentSize)
+  }
+  finally {
+    await nativeSettingsWindow.dispose()
+  }
+
+  await settingsPage.waitForFunction(size => (
+    globalThis.innerWidth === size.width
+    && globalThis.innerHeight === size.height
+  ), settingsContentSize)
+
+  await settingsPage.evaluate((routePath) => {
+    globalThis.location.hash = routePath
+  }, modelRoutePath)
+  await settingsPage.waitForURL(/#\/settings\/models/)
+
+  const selectorButton = settingsPage.getByRole('button').filter({
+    hasText: /select model|选择模型|選擇模型|モデルを選択|모델 선택/i,
+  }).first()
+  await selectorButton.waitFor({ state: 'visible', timeout: 30_000 })
+  await selectorButton.click()
+
+  return settingsPage
+}
+
+async function uploadModel(
+  settingsPage: Page,
+  input: DisplayModelInput,
+  existingModelIds: Set<string>,
+): Promise<string> {
+  const optionsButton = settingsPage.getByRole('button', { name: 'Options for Display Models' }).first()
+  await optionsButton.waitFor({ state: 'visible', timeout: 15_000 })
+  await optionsButton.click()
+
+  let menuItemName = 'MMD'
+  if (input.format === 'live2d')
+    menuItemName = 'Live2D'
+  else if (input.format === 'vrm')
+    menuItemName = 'VRM'
+
+  const [fileChooser] = await Promise.all([
+    settingsPage.waitForEvent('filechooser'),
+    settingsPage.getByRole('menuitem', { name: menuItemName, exact: true }).click(),
+  ])
+  await fileChooser.setFiles(input.filePath)
+
+  return waitForNewImportedModelId(settingsPage, existingModelIds)
+}
+
+async function selectImportedModel(settingsPage: Page, modelFileName: string): Promise<void> {
+  const modelName = settingsPage.getByText(modelFileName, { exact: true }).first()
+  await modelName.waitFor({ state: 'visible', timeout: 60_000 })
+
+  const card = modelName.locator('xpath=ancestor::div[contains(concat(" ", normalize-space(@class), " "), " block ")][1]')
+  await card.click()
+
+  const selectButton = card.locator('button').last()
+  await selectButton.waitFor({ state: 'visible', timeout: 15_000 })
+  await selectButton.click()
+}
+
+async function waitForSelectedModel(page: Page, importedModelId: string): Promise<void> {
+  await page.waitForFunction((modelId) => {
+    return globalThis.localStorage.getItem('settings/stage/model') === modelId
+  }, importedModelId, { timeout: 30_000 })
+}
+
+async function waitForNewImportedModelId(page: Page, existingModelIds: Set<string>, timeout = 60_000): Promise<string> {
+  const deadline = Date.now() + timeout
+
+  while (Date.now() < deadline) {
+    const modelIds = await readImportedModelIds(page)
+    const importedModelId = [...modelIds].find(modelId => !existingModelIds.has(modelId))
+    if (importedModelId)
+      return importedModelId
+
+    await page.waitForTimeout(250)
+  }
+
+  throw new Error('Timed out waiting for the imported display model')
+}
+
+async function readImportedModelIds(page: Page): Promise<Set<string>> {
+  const keys = await page.evaluate(async ({ databaseName, storeName, keyPrefix }) => {
+    return new Promise<string[]>((resolve, reject) => {
+      const openRequest = globalThis.indexedDB.open(databaseName)
+      openRequest.onerror = () => reject(openRequest.error)
+      openRequest.onsuccess = () => {
+        const database = openRequest.result
+        if (!database.objectStoreNames.contains(storeName)) {
+          database.close()
+          resolve([])
+          return
+        }
+
+        const transaction = database.transaction(storeName, 'readonly')
+        const keysRequest = transaction.objectStore(storeName).getAllKeys()
+        keysRequest.onerror = () => reject(keysRequest.error)
+        keysRequest.onsuccess = () => {
+          database.close()
+          resolve(keysRequest.result.filter((key): key is string => typeof key === 'string' && key.startsWith(keyPrefix)))
+        }
+      }
+    })
+  }, {
+    databaseName: localforageDatabaseName,
+    storeName: localforageStoreName,
+    keyPrefix: importedModelKeyPrefix,
+  })
+
+  return new Set(keys)
+}
+
+async function removeImportedModel(page: Page, importedModelId: string): Promise<void> {
+  await page.evaluate(async ({ databaseName, storeName, modelId }) => {
+    await new Promise<void>((resolve, reject) => {
+      const openRequest = globalThis.indexedDB.open(databaseName)
+      openRequest.onerror = () => reject(openRequest.error)
+      openRequest.onsuccess = () => {
+        const database = openRequest.result
+        if (!database.objectStoreNames.contains(storeName)) {
+          database.close()
+          resolve()
+          return
+        }
+
+        const transaction = database.transaction(storeName, 'readwrite')
+        transaction.onerror = () => reject(transaction.error)
+        transaction.oncomplete = () => {
+          database.close()
+          resolve()
+        }
+        transaction.objectStore(storeName).delete(modelId)
+      }
+    })
+  }, {
+    databaseName: localforageDatabaseName,
+    storeName: localforageStoreName,
+    modelId: importedModelId,
+  })
+}
+
+async function snapshotPersistedState(page: Page): Promise<Record<string, string | null>> {
+  return page.evaluate((keys) => {
+    return Object.fromEntries(keys.map(key => [key, globalThis.localStorage.getItem(key)]))
+  }, localStorageKeys)
+}
+
+async function restorePersistedState(page: Page, state: Record<string, string | null>): Promise<void> {
+  await page.evaluate((persistedState) => {
+    for (const [key, value] of Object.entries(persistedState)) {
+      if (value === null)
+        globalThis.localStorage.removeItem(key)
+      else
+        globalThis.localStorage.setItem(key, value)
+    }
+  }, state)
+}
+
+function hashRoute(url: string): string {
+  const hashIndex = url.indexOf('#')
+  if (hashIndex === -1)
+    return ''
+
+  return url.slice(hashIndex + 1) || '/'
+}
+
+function fileName(filePath: string): string {
+  const normalizedPath = filePath.replaceAll('\\', '/')
+  return normalizedPath.slice(normalizedPath.lastIndexOf('/') + 1)
+}
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-widget-flow.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-widget-flow.ts
index 88a84dabb..1d47a7aa4 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-widget-flow.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-widget-flow.ts
@@ -1,6 +1,6 @@
-import type { StageTamagotchiScenarioContext } from '../context.ts'
+import type { StageTamagotchiScenarioContext } from '../context'
 
-import { defineStageTamagotchiScenario } from '../context.ts'
+import { defineStageTamagotchiScenario } from '../context'
 
 type ElectronApplication = StageTamagotchiScenarioContext['electronApp']
 type Page = Parameters<StageTamagotchiScenarioContext['capture']>[1]
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-worker-smoke.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-worker-smoke.ts
index 98606da28..978edc9d5 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-worker-smoke.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-chess-worker-smoke.ts
@@ -1,6 +1,6 @@
-import type { StageTamagotchiScenarioContext } from '../context.ts'
+import type { StageTamagotchiScenarioContext } from '../context'
 
-import { defineStageTamagotchiScenario } from '../context.ts'
+import { defineStageTamagotchiScenario } from '../context'
 
 type ElectronApplication = StageTamagotchiScenarioContext['electronApp']
 type Page = Parameters<StageTamagotchiScenarioContext['capture']>[1]
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-widget-static-assets-local-address.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-widget-static-assets-local-address.ts
index b23f0e049..e2c8bcc60 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-widget-static-assets-local-address.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/plugin-widget-static-assets-local-address.ts
@@ -1,6 +1,6 @@
-import type { StageTamagotchiScenarioContext } from '../context.ts'
+import type { StageTamagotchiScenarioContext } from '../context'
 
-import { defineStageTamagotchiScenario } from '../context.ts'
+import { defineStageTamagotchiScenario } from '../context'
 
 type ElectronApplication = StageTamagotchiScenarioContext['electronApp']
 type Page = Parameters<StageTamagotchiScenarioContext['capture']>[1]
diff --git a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/settings-connection.ts b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/settings-connection.ts
index 2453e1e35..18b46ecde 100644
--- a/packages/scenarios-stage-tamagotchi-electron/src/scenarios/settings-connection.ts
+++ b/packages/scenarios-stage-tamagotchi-electron/src/scenarios/settings-connection.ts
@@ -1,4 +1,4 @@
-import { defineStageTamagotchiScenario } from '../context.ts'
+import { defineStageTamagotchiScenario } from '../context'
 
 const websocketServerAddressPattern = /WebSocket Server Address|WebSocket 服务器地址/i