diff --git a/CHANGELOG.md b/CHANGELOG.md
index 221a990..39a2eb7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 本仓库自 **v1.0.0** 起作为正式版维护；此前历史提交已归档重置。
 
+## [1.1.1] - 2026-08-26
+
+### 修复
+
+- 移除启动时自动创建的空白「S3 兼容存储」占位；升级后自动清理旧占位记录
+- 修复管理页切换路由时反复闪现「正在验证登录状态」
+- 修复静默会话校验后设置 / 统计 / API 页不加载数据
+
+### 改进
+
+- Docker 日志：4xx/5xx 分级输出，记录错误原因与堆栈；上传/启动任务失败写入详细错误
+
 ## [1.1.0] - 2026-08-26
 
 ### 新增
@@ -83,8 +95,9 @@
 
 ### 路线图
 
-- **v1.1.0**（当前 `main`）：S3、Cloudflare R2 等多后端对象存储
+- **v1.1.1**（当前 `main`）：会话校验与存储占位修复、Docker 日志增强
 
+[1.1.1]: https://github.com/O96u/PicHost/releases/tag/v1.1.1
 [1.1.0]: https://github.com/O96u/PicHost/releases/tag/v1.1.0
 [1.0.4]: https://github.com/O96u/PicHost/releases/tag/v1.0.4
 [1.0.3]: https://github.com/O96u/PicHost/releases/tag/v1.0.3
diff --git a/README.en.md b/README.en.md
index 1d7ed18..2610a5c 100644
--- a/README.en.md
+++ b/README.en.md
@@ -32,7 +32,7 @@
 
 | Branch | Notes |
 | ------ | ----- |
-| [**main**](https://github.com/O96u/PicHost/tree/main) (default) | **v1.1.0** — local disk + multi-backend object storage (R2 / COS / OSS / AWS), [`/storage`](docs/README.md) UI, hybrid URLs |
+| [**main**](https://github.com/O96u/PicHost/tree/main) (default) | **v1.1.1** — local disk + multi-backend object storage (R2 / COS / OSS / AWS), [`/storage`](docs/README.md) UI, hybrid URLs |
 | [**cloudflare**](https://github.com/O96u/PicHost/tree/cloudflare) | **Cloudflare R2–only line** — streamlined for deployments that use R2 exclusively |
 
 Use **main** for the full product and multiple cloud backends.
@@ -193,7 +193,8 @@ npm test             # Unit tests
 
 | Version    | Plan                                                           |
 | ---------- | -------------------------------------------------------------- |
-| **v1.1.0** | Multi-backend object storage, hybrid URLs, storage UI (current `main`) |
+| **v1.1.1** | Session check fixes, storage placeholder cleanup, Docker logging (current `main`) |
+| **v1.1.0** | Multi-backend object storage, hybrid URLs, storage UI |
 | **v1.0.4** | Password visibility toggle, legacy ADMIN_SECRET migration      |
 | **v1.0.3** | CI and Docker multi-arch build fixes                           |
 | **v1.0.2** | i18n, mobile menus, stats/upload UI, Docker password reset     |
diff --git a/README.md b/README.md
index 921f1fc..8079efb 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@
 
 | 分支 | 说明 |
 | ---- | ---- |
-| [**main**](https://github.com/O96u/PicHost/tree/main)（默认） | **v1.1.0** 主线：本地磁盘 + 多对象存储后端（R2 / COS / OSS / AWS）、[`/storage`](docs/README.md) 存储管理、混合直链 |
+| [**main**](https://github.com/O96u/PicHost/tree/main)（默认） | **v1.1.1** 主线：本地磁盘 + 多对象存储后端（R2 / COS / OSS / AWS）、[`/storage`](docs/README.md) 存储管理、混合直链 |
 | [**cloudflare**](https://github.com/O96u/PicHost/tree/cloudflare) | **Cloudflare R2 专用线**：面向「只用 R2」的部署，预设与配置更聚焦 R2 |
 
 日常使用、需要管理多种存储后端，请直接用 **main**。
@@ -198,7 +198,8 @@ npm test             # 单元测试
 
 | 版本       | 说明                                              |
 | ---------- | ------------------------------------------------- |
-| **v1.1.0** | S3 / R2 多后端对象存储、混合直链、存储管理页（当前 main） |
+| **v1.1.1** | 会话校验与存储占位修复、Docker 日志增强（当前 main） |
+| **v1.1.0** | S3 / R2 多后端对象存储、混合直链、存储管理页          |
 | **v1.0.4** | 密码显示切换、遗留 ADMIN_SECRET 迁移对齐          |
 | **v1.0.3** | CI 与 Docker 多架构构建修复                       |
 | **v1.0.2** | 中英文、移动端菜单、统计/上传 UI、Docker 重置密码 |
diff --git a/app/composables/useAuth.ts b/app/composables/useAuth.ts
index 96a83b4..edafde5 100644
--- a/app/composables/useAuth.ts
+++ b/app/composables/useAuth.ts
@@ -71,8 +71,10 @@ export function useAuth() {
   const status = useState<AuthStatus>('auth-status', () => 'checking')
   const user = useState<AuthUser | null>('auth-user', () => null)
   const authStatus = useState<AuthStatusResponse | null>('auth-status-response', () => null)
+  /** 是否已完成至少一次会话校验（用于避免路由切换时反复全屏 loading） */
+  const hasValidatedOnce = useState('auth-validated-once', () => false)
 
-  const isChecking = computed(() => status.value === 'checking')
+  const isChecking = computed(() => status.value === 'checking' && !hasValidatedOnce.value)
   const isAuthenticated = computed(() => status.value === 'authenticated')
   const isAdmin = computed(() => user.value?.role === 'admin')
 
@@ -84,10 +86,14 @@ export function useAuth() {
     return data
   }
 
-  async function checkSession() {
-    status.value = 'checking'
+  async function checkSession(options?: { force?: boolean }) {
+    const silent = !options?.force && hasValidatedOnce.value
+    if (!silent) {
+      status.value = 'checking'
+    }
     try {
       const data = await fetchStatus()
+      hasValidatedOnce.value = true
       if (data.user) {
         user.value = data.user
         status.value = 'authenticated'
@@ -97,6 +103,7 @@ export function useAuth() {
       status.value = 'unauthenticated'
       return false
     } catch {
+      hasValidatedOnce.value = true
       user.value = null
       status.value = 'unauthenticated'
       return false
@@ -129,6 +136,7 @@ export function useAuth() {
         user.value = result.user
       }
       status.value = 'authenticated'
+      hasValidatedOnce.value = true
       await fetchStatus()
       return { ok: true }
     } catch (error: unknown) {
@@ -159,6 +167,7 @@ export function useAuth() {
       )
       user.value = result.user
       status.value = 'authenticated'
+      hasValidatedOnce.value = true
       await fetchStatus()
       return { ok: true }
     } catch (error: unknown) {
@@ -194,6 +203,7 @@ export function useAuth() {
       )
       user.value = result.user
       status.value = 'authenticated'
+      hasValidatedOnce.value = true
       await fetchStatus()
       return { ok: true }
     } catch (error: unknown) {
@@ -229,6 +239,7 @@ export function useAuth() {
       )
       user.value = result.user
       status.value = 'authenticated'
+      hasValidatedOnce.value = true
       await fetchStatus()
       return { ok: true }
     } catch (error: unknown) {
@@ -271,6 +282,7 @@ export function useAuth() {
       status.value = 'unauthenticated'
       user.value = null
       authStatus.value = null
+      hasValidatedOnce.value = true
     }
   }
 
diff --git a/app/pages/api.vue b/app/pages/api.vue
index 4f71930..6caed3b 100644
--- a/app/pages/api.vue
+++ b/app/pages/api.vue
@@ -240,10 +240,13 @@ onMounted(async () => {
     return
   }
   await checkSession()
+  if (isAuthenticated.value) {
+    await loadSettings()
+  }
 })
 
-watch(isAuthenticated, async (authed) => {
-  if (authed) {
+watch(isAuthenticated, async (authed, prev) => {
+  if (authed && prev === false) {
     await nextTick()
     await loadSettings()
   } else {
diff --git a/app/pages/settings/index.vue b/app/pages/settings/index.vue
index 60bdc24..ef8e06b 100644
--- a/app/pages/settings/index.vue
+++ b/app/pages/settings/index.vue
@@ -161,11 +161,15 @@ onMounted(async () => {
   await checkSession()
   if (isAuthenticated.value && !isAdmin.value) {
     await navigateTo('/')
+    return
+  }
+  if (isAuthenticated.value && isAdmin.value) {
+    await loadPage()
   }
 })
 
-watch(isAuthenticated, async (authed) => {
-  if (authed) {
+watch(isAuthenticated, async (authed, prev) => {
+  if (authed && prev === false) {
     if (!isAdmin.value) {
       await navigateTo('/')
       return
diff --git a/app/pages/stats.vue b/app/pages/stats.vue
index ad4e667..c0c41ff 100644
--- a/app/pages/stats.vue
+++ b/app/pages/stats.vue
@@ -316,6 +316,9 @@ onMounted(async () => {
     return
   }
   await checkSession()
+  if (isAuthenticated.value) {
+    await refreshAll()
+  }
 })
 
 onUnmounted(() => {
diff --git a/package-lock.json b/package-lock.json
index 2fcc5cf..33d3029 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "pichost",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "pichost",
-      "version": "1.1.0",
+      "version": "1.1.1",
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index e2f2ab3..a73c900 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pichost",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "Self-hosted image hosting for your NAS / home server — Nuxt admin UI, local disk or S3-compatible storage, server-side WebP compression, referer protection, Twikoo/EasyImage compatible.",
   "homepage": "https://github.com/O96u/PicHost#readme",
   "repository": {
diff --git a/server/api/logs/index.get.ts b/server/api/logs/index.get.ts
index dc5d928..35a8cd5 100644
--- a/server/api/logs/index.get.ts
+++ b/server/api/logs/index.get.ts
@@ -1,5 +1,6 @@
 import { requireAdminAuth } from '../../utils/access'
 import { createApiError } from '../../utils/api-error'
+import { logException } from '../../utils/logger'
 import {
   listActivityLogs,
   type LogAction,
@@ -58,7 +59,7 @@ export default defineEventHandler(async (event) => {
       totalPages: result.totalPages
     }
   } catch (error) {
-    console.error('[logs] list failed', error)
+    logException('activity logs list failed', error)
     createApiError(event, 'INVALID_REQUEST', '读取操作记录失败', 500)
   }
 })
diff --git a/server/api/stats.get.ts b/server/api/stats.get.ts
index 6a9d6ba..d29a8ff 100644
--- a/server/api/stats.get.ts
+++ b/server/api/stats.get.ts
@@ -1,5 +1,6 @@
 import { getImageUserFilter, requireUserAuth } from '../utils/access'
 import { createApiError } from '../utils/api-error'
+import { logException } from '../utils/logger'
 import { countUsers, getActivityStats } from '../utils/db'
 import {
   countImages,
@@ -46,7 +47,7 @@ export default defineEventHandler(async (event) => {
       byFolder: scoped.byFolder
     }
   } catch (error) {
-    console.error('[stats] failed', error)
+    logException('stats failed', error)
     createApiError(event, 'INVALID_REQUEST', '读取统计失败', 500)
   }
 })
diff --git a/server/plugins/error-log.ts b/server/plugins/error-log.ts
new file mode 100644
index 0000000..315162d
--- /dev/null
+++ b/server/plugins/error-log.ts
@@ -0,0 +1,43 @@
+import { clientIp, logError, logException, logWarn, serializeError } from '../utils/logger'
+
+/**
+ * 记录未捕获的 H3/Nitro 错误（含 createApiError 抛出的 4xx/5xx）。
+ */
+export default defineNitroPlugin((nitroApp) => {
+  nitroApp.hooks.hook('error', (error, { event }) => {
+    const serialized = serializeError(error)
+    const status = typeof serialized.statusCode === 'number'
+      ? serialized.statusCode
+      : 500
+
+    if (!event) {
+      logError('unhandled error', serialized)
+      return
+    }
+
+    const path = getRequestURL(event).pathname
+    const method = getMethod(event)
+    const base = {
+      method,
+      path,
+      status,
+      ip: clientIp(event),
+      message: serialized.message,
+      ...(serialized.statusMessage ? { reason: serialized.statusMessage } : {}),
+      ...(serialized.data ? { data: serialized.data } : {})
+    }
+
+    if (!path.startsWith('/api/')) {
+      if (status >= 500) {
+        logException(`${method} ${path}`, error, base)
+      }
+      return
+    }
+
+    if (status >= 500) {
+      logException('API error', error, base)
+    } else if (status >= 400) {
+      logWarn('API rejected', base)
+    }
+  })
+})
diff --git a/server/plugins/request-log.ts b/server/plugins/request-log.ts
index a81727c..b675b6e 100644
--- a/server/plugins/request-log.ts
+++ b/server/plugins/request-log.ts
@@ -1,4 +1,4 @@
-import { clientIp, logInfo } from '../utils/logger'
+import { clientIp, logError, logInfo, logWarn } from '../utils/logger'
 
 /**
  * 只记录 /api/*，避免 /images、/twikoo 直链刷屏。
@@ -19,11 +19,24 @@ export default defineNitroPlugin((nitroApp) => {
     const status = getResponseStatus(event)
     const started = event.context._reqStartedAt as number | undefined
     const ms = started ? Date.now() - started : undefined
+    const reason = status >= 400 ? getResponseStatusText(event) : undefined
 
-    logInfo(`${method} ${path}`, {
+    const detail: Record<string, unknown> = {
       status,
       ms,
       ip: clientIp(event)
-    })
+    }
+    if (reason && reason !== String(status)) {
+      detail.reason = reason
+    }
+
+    const line = `${method} ${path}`
+    if (status >= 500) {
+      logError(line, detail)
+    } else if (status >= 400) {
+      logWarn(line, detail)
+    } else {
+      logInfo(line, detail)
+    }
   })
 })
diff --git a/server/plugins/startup.ts b/server/plugins/startup.ts
index ff7d696..4877532 100644
--- a/server/plugins/startup.ts
+++ b/server/plugins/startup.ts
@@ -2,7 +2,7 @@ import { getDataDir } from '../utils/data-dir'
 import { runAutoDeleteCleanup } from '../utils/auto-delete'
 import { migrateLocalImagesToIndex } from '../utils/image-index'
 import { ensureDefaultBackends } from '../utils/storage-backends'
-import { logInfo } from '../utils/logger'
+import { logException, logInfo } from '../utils/logger'
 
 export default defineNitroPlugin(() => {
   const port = process.env.NITRO_PORT || process.env.PORT || '6892'
@@ -20,11 +20,15 @@ export default defineNitroPlugin(() => {
     if (count > 0) {
       logInfo('migrated local images to index', { count })
     }
+  }).catch((error) => {
+    logException('migrate local images to index failed', error)
   })
 
   void runAutoDeleteCleanup().then((result) => {
     if (!result.skipped && (result.deleted > 0 || result.failed > 0)) {
       logInfo('startup auto-delete', { ...result })
     }
+  }).catch((error) => {
+    logException('startup auto-delete failed', error)
   })
 })
diff --git a/server/utils/auto-delete.ts b/server/utils/auto-delete.ts
index d31d01b..75e275a 100644
--- a/server/utils/auto-delete.ts
+++ b/server/utils/auto-delete.ts
@@ -2,7 +2,7 @@ import { insertActivityLog, listAdminUserIds, listUserAutoDeletePolicies, type A
 import { getGlobalAutoDeletePolicy } from './env'
 import { deleteImage, type StoredImage } from './storage'
 import { listImageKeysForAutoDelete } from './image-index'
-import { logInfo, logWarn } from './logger'
+import { logInfo, logWarn, serializeError } from './logger'
 
 export interface AutoDeleteResult {
   deleted: number
@@ -95,7 +95,7 @@ export async function runAutoDeleteCleanup(): Promise<AutoDeleteResult> {
       })
       deleted++
     } catch (error) {
-      logWarn('auto-delete failed', { key: image.key, error })
+      logWarn('auto-delete failed', { key: image.key, error: serializeError(error) })
       failed++
     }
   }
diff --git a/server/utils/db.ts b/server/utils/db.ts
index acb98ae..f1b03c0 100644
--- a/server/utils/db.ts
+++ b/server/utils/db.ts
@@ -2,6 +2,7 @@ import { DatabaseSync } from 'node:sqlite'
 import { mkdirSync } from 'node:fs'
 import { join } from 'node:path'
 import { getDataDir } from './data-dir'
+import { logException } from './logger'
 
 export type LogAction = 'upload' | 'delete'
 export type LogSource = 'web' | 'api' | 'twikoo'
@@ -404,7 +405,10 @@ export function insertActivityLog(input: ActivityLogInput): void {
       createdAt
     )
   } catch (error) {
-    console.error('[activity-log] insert failed', error)
+    logException('activity-log insert failed', error, {
+      action: input.action,
+      key: input.key
+    })
   }
 }
 
diff --git a/server/utils/logger.test.ts b/server/utils/logger.test.ts
new file mode 100644
index 0000000..b8e40f7
--- /dev/null
+++ b/server/utils/logger.test.ts
@@ -0,0 +1,32 @@
+import { describe, expect, it } from 'vitest'
+import { serializeError } from './logger'
+
+describe('serializeError', () => {
+  it('extracts message and status from H3-like errors', () => {
+    const error = new Error('bucket not found') as Error & {
+      statusCode: number
+      statusMessage: string
+      data: { error: { code: string } }
+    }
+    error.statusCode = 404
+    error.statusMessage = '存储桶不存在'
+    error.data = { error: { code: 'NOT_FOUND' } }
+
+    expect(serializeError(error)).toMatchObject({
+      name: 'Error',
+      message: 'bucket not found',
+      statusCode: 404,
+      statusMessage: '存储桶不存在',
+      data: { error: { code: 'NOT_FOUND' } }
+    })
+  })
+
+  it('includes stack for 5xx errors at info log level', () => {
+    const error = new Error('db locked') as Error & { statusCode: number }
+    error.statusCode = 500
+    error.stack = 'Error: db locked\n    at test'
+
+    const serialized = serializeError(error)
+    expect(serialized.stack).toBe(error.stack)
+  })
+})
diff --git a/server/utils/logger.ts b/server/utils/logger.ts
index 299bc0f..f3a5440 100644
--- a/server/utils/logger.ts
+++ b/server/utils/logger.ts
@@ -7,6 +7,12 @@ const LEVEL_ORDER: Record<LogLevel, number> = {
   error: 40
 }
 
+type H3LikeError = Error & {
+  statusCode?: number
+  statusMessage?: string
+  data?: unknown
+}
+
 function currentLevel(): LogLevel {
   const raw = (process.env.LOG_LEVEL || 'info').toLowerCase()
   if (raw === 'debug' || raw === 'info' || raw === 'warn' || raw === 'error') {
@@ -27,6 +33,35 @@ function formatLine(level: LogLevel, message: string, extra?: Record<string, unk
   return `[${time}] [${level.toUpperCase()}] ${message}${payload}`
 }
 
+/** 将 unknown / Error / H3Error 转为可 JSON 输出的字段，便于 Docker 日志排查 */
+export function serializeError(error: unknown): Record<string, unknown> {
+  if (error instanceof Error) {
+    const h3 = error as H3LikeError
+    const out: Record<string, unknown> = {
+      name: error.name,
+      message: error.message
+    }
+    if (h3.statusCode !== undefined) out.statusCode = h3.statusCode
+    if (h3.statusMessage) out.statusMessage = h3.statusMessage
+    if (h3.data !== undefined) out.data = h3.data
+    if (error.stack && shouldLog('debug')) out.stack = error.stack
+    else if (error.stack && (h3.statusCode ?? 500) >= 500) out.stack = error.stack
+    if ('cause' in error && error.cause !== undefined) {
+      out.cause = serializeError(error.cause)
+    }
+    return out
+  }
+  if (typeof error === 'string') return { message: error }
+  if (error && typeof error === 'object') {
+    try {
+      return { detail: JSON.parse(JSON.stringify(error)) }
+    } catch {
+      return { message: String(error) }
+    }
+  }
+  return { message: String(error) }
+}
+
 export function logDebug(message: string, extra?: Record<string, unknown>) {
   if (!shouldLog('debug')) return
   console.debug(formatLine('debug', message, extra))
@@ -47,6 +82,11 @@ export function logError(message: string, extra?: Record<string, unknown>) {
   console.error(formatLine('error', message, extra))
 }
 
+/** message + 原始 error 对象（自动 serialize） */
+export function logException(message: string, error: unknown, extra?: Record<string, unknown>) {
+  logError(message, { ...extra, error: serializeError(error) })
+}
+
 export function clientIp(event: Parameters<typeof getRequestIP>[0]): string {
   return getRequestIP(event, { xForwardedFor: true }) || '-'
 }
diff --git a/server/utils/process-image-upload.ts b/server/utils/process-image-upload.ts
index 6ce48d2..c5265c2 100644
--- a/server/utils/process-image-upload.ts
+++ b/server/utils/process-image-upload.ts
@@ -17,7 +17,7 @@ import { buildImageItem, sanitizeOriginalName } from './image-response'
 import { getWebpQuality } from './env'
 import { insertActivityLog } from './db'
 import { putImage } from './storage'
-import { logInfo, logWarn } from './logger'
+import { logInfo, logException } from './logger'
 
 /** 可转 WebP 的位图格式；SVG（矢量）、ICO、已是 WebP 的原样存储 */
 const WEBP_CONVERTIBLE: readonly AllowedMimeType[] = [
@@ -136,8 +136,8 @@ export async function processSingleImageUpload(
       size: compressed.bytes.byteLength,
       userId: input.userId ?? null
     })
-  } catch {
-    logWarn('upload failed: storage error', {
+  } catch (error) {
+    logException('upload failed: storage error', error, {
       name: originalName,
       source: input.source ?? 'web'
     })
diff --git a/server/utils/storage-backends.ts b/server/utils/storage-backends.ts
index d6636d8..0214d28 100644
--- a/server/utils/storage-backends.ts
+++ b/server/utils/storage-backends.ts
@@ -71,18 +71,37 @@ export function ensureDefaultBackends(): void {
     `).run(LOCAL_BACKEND_ID, '本地磁盘')
   }
 
-  const s3 = db.prepare(`
-    SELECT id FROM storage_backends WHERE id = ?
-  `).get(S3_BACKEND_ID)
+  cleanupPlaceholderS3Backend(db)
+}
 
-  if (!s3) {
-    db.prepare(`
-      INSERT INTO storage_backends
-        (id, name, type, config_json, secret_json, serving_mode, public_url,
-         quota_bytes, enabled, is_default, sort_order)
-      VALUES (?, ?, 's3', '{}', '{}', 'proxy', '', NULL, 0, 0, 1)
-    `).run(S3_BACKEND_ID, 'S3 兼容存储')
+/** 移除早期版本自动种下的空 S3 占位（未配置、未启用、非默认、无图片） */
+function cleanupPlaceholderS3Backend(db: DatabaseSync): void {
+  const row = db.prepare(`
+    SELECT * FROM storage_backends WHERE id = ?
+  `).get(S3_BACKEND_ID) as StorageBackendRow | undefined
+
+  if (!row || row.type !== 's3' || row.is_default === 1) {
+    return
   }
+
+  const config = parseS3Config(row.config_json)
+  const secrets = parseS3Secrets(row.secret_json)
+  const configured = Boolean(
+    config?.bucket?.trim()
+    || config?.endpoint?.trim()
+    || secrets?.accessKeyId?.trim()
+    || secrets?.secretAccessKey?.trim()
+  )
+  if (configured) {
+    return
+  }
+
+  const usage = getBackendUsageStats(S3_BACKEND_ID)
+  if (usage.count > 0) {
+    return
+  }
+
+  db.prepare('DELETE FROM storage_backends WHERE id = ?').run(S3_BACKEND_ID)
 }
 
 function rowToInfo(row: StorageBackendRow, _maskSecrets = true): StorageBackendInfo & {