diff --git a/apps/server/otel/loki/loki.yaml b/apps/server/otel/loki/loki.yaml
index 0a1e348e1..7d1fedf54 100644
--- a/apps/server/otel/loki/loki.yaml
+++ b/apps/server/otel/loki/loki.yaml
@@ -16,7 +16,7 @@ common:
 
 schema_config:
   configs:
-    - from: "2024-01-01"
+    - from: '2024-01-01'
       store: tsdb
       object_store: filesystem
       schema: v13
diff --git a/apps/server/src/app.ts b/apps/server/src/app.ts
index 7e084fae8..ea60239ea 100644
--- a/apps/server/src/app.ts
+++ b/apps/server/src/app.ts
@@ -171,7 +171,7 @@ async function createApp() {
   })
 
   const db = injeca.provide('datastore:db', {
-    dependsOn: { env: parsedEnv },
+    dependsOn: { env: parsedEnv, lifecycle },
     build: async ({ dependsOn }) => {
       const { db: dbInstance, pool } = createDrizzle(dependsOn.env.DATABASE_URL)
       await dbInstance.execute('SELECT 1')
diff --git a/packages/i18n/src/locales/zh-Hans/settings.yaml b/packages/i18n/src/locales/zh-Hans/settings.yaml
index 62b2b0e78..5955f1b5e 100644
--- a/packages/i18n/src/locales/zh-Hans/settings.yaml
+++ b/packages/i18n/src/locales/zh-Hans/settings.yaml
@@ -466,9 +466,9 @@ pages:
       actions:
         open-config: 打开 mcp.json
         apply-and-restart: 保存并重启 stdio MCP
-      messages:
-        opened: Config file opened at {path}
-        restarted: MCP servers restarted. Started {started}, failed {failed}, skipped {skipped}
+        opened: 配置文件已于{path}打开
+        restarted: >-
+          MCP 服务已重新启动，启动了{started}，未启动{failed}，跳过{skipped}
   flux:
     title: Flux
     buy: 充能
diff --git a/packages/stage-ui/src/components/scenarios/dialogs/onboarding/step-welcome.vue b/packages/stage-ui/src/components/scenarios/dialogs/onboarding/step-welcome.vue
index 2976f3b86..1fbe13a0d 100644
--- a/packages/stage-ui/src/components/scenarios/dialogs/onboarding/step-welcome.vue
+++ b/packages/stage-ui/src/components/scenarios/dialogs/onboarding/step-welcome.vue
@@ -86,7 +86,7 @@ function handleLocalSetup() {
       <Button
         v-motion
         :initial="{ opacity: 0 }"
-        :visible="{ opacity: 1 }"
+        :enter="{ opacity: 1 }"
         :duration="500"
         :delay="200"
         :label="t('settings.dialogs.onboarding.loginAction')"
@@ -96,7 +96,7 @@ function handleLocalSetup() {
       <Button
         v-motion
         :initial="{ opacity: 0 }"
-        :visible="{ opacity: 1 }"
+        :enter="{ opacity: 1 }"
         :duration="500"
         :delay="250"
         variant="secondary"
diff --git a/packages/stage-ui/src/stores/onboarding.ts b/packages/stage-ui/src/stores/onboarding.ts
index 5ce44ffa6..2f557cbc9 100644
--- a/packages/stage-ui/src/stores/onboarding.ts
+++ b/packages/stage-ui/src/stores/onboarding.ts
@@ -5,7 +5,7 @@ import { computed, ref, watch } from 'vue'
 import { useAuthStore } from './auth'
 import { useProvidersStore } from './providers'
 
-const essentialProviderIds = ['openai', 'azure-openai', 'anthropic', 'google-generative-ai', 'openrouter-ai', 'ollama', 'deepseek', 'openai-compatible'] as const
+const essentialProviderIds = ['openai', 'azure-openai', 'anthropic', 'google-generative-ai', 'openrouter-ai', 'ollama', 'deepseek', 'openai-compatible', 'official-provider'] as const
 const credentialBasedEssentialProviderIds = ['openai', 'azure-openai', 'anthropic', 'google-generative-ai', 'openrouter-ai', 'deepseek'] as const
 
 function hasNonEmptyText(value: unknown): boolean {
@@ -25,17 +25,21 @@ export const useOnboardingStore = defineStore('onboarding', () => {
 
   // Check if any essential provider is configured
   const hasEssentialProviderConfigured = computed(() => {
-    const essentialProviders = [
-      'openai',
-      'anthropic',
-      'google-generative-ai',
-      'openrouter-ai',
-      'ollama',
-      'deepseek',
-      'openai-compatible',
-      'official-provider',
-    ]
-    return essentialProviders.some(providerId => providersStore.configuredProviders[providerId])
+    return essentialProviderIds.some(providerId => providersStore.configuredProviders[providerId])
+  })
+
+  // Fallback for app startup timing:
+  // If configured state has not been revalidated yet, infer "configured"
+  // from persisted essential credentials.
+  const hasEssentialProviderCredentialConfigured = computed(() => {
+    return credentialBasedEssentialProviderIds.some((providerId) => {
+      const providerConfig = providersStore.providers[providerId] as Record<string, unknown> | undefined
+      if (!providerConfig) {
+        return false
+      }
+
+      return hasNonEmptyText(providerConfig.apiKey)
+    })
   })
 
   // Check if first-time setup should be shown
diff --git a/packages/stage-ui/src/stores/providers.ts b/packages/stage-ui/src/stores/providers.ts
index 94a4b77a7..994036201 100644
--- a/packages/stage-ui/src/stores/providers.ts
+++ b/packages/stage-ui/src/stores/providers.ts
@@ -1795,18 +1795,10 @@ export const useProvidersStore = defineStore('providers', () => {
     if (!forceValidation && runtimeState?.validatedCredentialHash === configString && typeof runtimeState.isConfigured === 'boolean')
       return runtimeState.isConfigured
 
-    // Always cache the current config string to prevent re-validating the same config
-    if (providerRuntimeState.value[providerId]) {
-      providerRuntimeState.value[providerId].validatedCredentialHash = configString
-    }
-
-    const validationResult = await metadata.validators.validateProviderConfig(config || {})
-
-    if (providerRuntimeState.value[providerId]) {
-      providerRuntimeState.value[providerId].isConfigured = validationResult.valid
-      // Auto-mark Web Speech API as added if valid and available
-      if (validationResult.valid && ['browser-web-speech-api', 'player2', 'official-provider'].includes(providerId)) {
-        markProviderAdded(providerId)
+    if (!forceValidation) {
+      const pending = providerValidationInFlight.get(cacheKey)
+      if (pending) {
+        return pending
       }
     }