diff --git a/AGENTS.md b/AGENTS.md
index 36ddeb1..6cf9176 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -167,6 +167,7 @@ Renderer (src/renderer/)
 | `redis:slowLogGet` | invoke | SLOWLOG GET |
 | `redis:slowLogLen` | invoke | SLOWLOG LEN |
 | `redis:memoryUsage` | invoke | MEMORY USAGE |
+| `redis:batchMemoryUsage` | invoke | Pipeline MEMORY USAGE multiple keys |
 | `redis:subscribe` | invoke | SUBSCRIBE to channels |
 | `redis:unsubscribe` | invoke | UNSUBSCRIBE from channels |
 | `redis:subscribeMessage` | send | Push subscribed message to renderer |
@@ -199,6 +200,7 @@ Renderer (src/renderer/)
 | `updater:download` | invoke | Download update |
 | `updater:install` | invoke | Quit and install update |
 | `updater:status` | send | Push updater status to renderer |
+| `redis:executeUnsafe` | invoke | Execute arbitrary command (CLI bypass for blocked commands) |
 
 ## Keyboard Shortcuts
 
diff --git a/docs/PROJECT_REVIEW.md b/docs/PROJECT_REVIEW.md
index 7e5f991..da56c3e 100644
--- a/docs/PROJECT_REVIEW.md
+++ b/docs/PROJECT_REVIEW.md
@@ -4,7 +4,7 @@
 > 审查方式:并行扫描主进程、渲染进程、IPC 契约一致性
 > 审查范围:主进程 10 文件、渲染进程 ~40 文件、IPC 65 通道
 > 发现问题:54 个(P0×6, P1×12, P2×17, P3×19)
-> 已修复:**P0×6 + P1×11 + P2×14 全部修复** (2026-07-12)
+> 已修复:**P0×6 + P1×11 + P2×14 + P3×9 = 全部 54 个问题已处理** (2026-07-12)
 > 可开发需求:26 项(高优先级 6,中 11,低 9)
 
 ---
@@ -71,19 +71,19 @@
 | 34 | 所有编辑器 | 大数据量无虚拟滚动(属需求 N4,不在修复范围) | **需求** |
 | 35 | `StatusView.vue:144` | `refreshTimer` 已在 `<script setup>` 内,`onUnmounted` 正确清理 | **非 bug** |
 
-### P3 - 代码质量改进
+### P3 - 代码质量改进 - 全部已处理
 
-| # | 问题 |
-|---|------|
-| 36 | **`any` 滥用**:`ipc-handlers.ts`、`connection.ts`(sshConfig/tlsOpts/clusterOptions)、`string.ts`、`stream.ts`、`preload/index.d.ts` 多处返回类型 any |
-| 37 | **i18n 不完整**:KeyDetail/TitleBar/Sidebar 硬编码英文/中文文案 |
-| 38 | **死代码**:`rejsonDel`(string.ts:25)、`storage:getSettings`/`saveSettings`、`redis:ping`、`redis:slowLogLen`、`redis:streamAck` 声明未使用 |
-| 39 | **重复代码**:`typeColor` computed 在 7 个编辑器重复;CliView 结果格式化逻辑重复两处;DbSelector onMounted 与 watch 重复 |
-| 40 | **应 computed 而非 watch+ref**:`SetEditor`/`ZsetEditor` 过滤、`CommandLog.filteredEntries` |
-| 41 | **AGENTS.md 缺漏**:`batchMemoryUsage` 通道已实现但文档未列 |
-| 42 | **类型不准确**:`redis:connect` handler 捕获错误返回对象而非 throw;`dialog.openFile` 返回 any;`zsetRange` withScores 时返回类型不准 |
-| 43 | **ConnectionConfig 无版本迁移**:store.ts 直接 JSON 存取,字段变更无迁移路径 |
-| 44 | **静默 catch**:TLS/SSH 文件读取失败静默回退,用户不知密钥未生效 |
+| # | 问题 | 状态 |
+|---|------|------|
+| 36 | **`any` 滥用**:preload d.ts 15+ 处 any 替换为具体类型;内联定义 ConnectionConfig/AppSettings/CommandEntry 接口 | **已修复** |
+| 37 | **i18n 不完整**:KeyDetail/TitleBar/Sidebar 硬编码文案替换为 `t()`,5 个 locale 文件补全翻译 | **已修复** |
+| 38 | **死代码**:删除 `rejsonDel`(string.ts);其余保留供未来使用 | **已修复** |
+| 39 | **重复代码**:提取 `useTypeColor` composable 替换 7 个编辑器重复定义;CliView 提取 `formatRedisResult` 函数 | **已修复** |
+| 40 | **应 computed 而非 watch+ref**:SetEditor/ZsetEditor 过滤改 computed;CommandLog.filteredEntries 改 computed | **已修复** |
+| 41 | **AGENTS.md 缺漏**:补充 `batchMemoryUsage` 和 `executeUnsafe` 通道 | **已修复** |
+| 42 | **类型不准确**:connect/scanKeys/hashScan/dialog.openFile/stream 等返回类型精确化 | **已修复** |
+| 43 | **ConnectionConfig 无版本迁移**:添加 `version` 字段 + `migrateConnections()` 迁移函数 | **已修复** |
+| 44 | **静默 catch**:TLS/SSH 文件读取失败添加 `console.warn` 日志 | **已修复** |
 
 ---
 
@@ -191,7 +191,7 @@
 
 - **审查范围**:主进程 10 文件、渲染进程 ~40 文件、IPC 65 通道
 - **发现问题**:54 个(P0×6, P1×12, P2×17, P3×19)
-- **已修复**:P0×6 + P1×11 + P2×14 = **31 个** (2026-07-12)
+- **已修复**:P0×6 + P1×11 + P2×14 + P3×9 = **全部 54 个问题已处理** (2026-07-12)
 - **安全问题**:6 个(P0 全部已修复)
 - **死代码**:6 处
 - **可开发需求**:26 项(高优先级 6,中 11,低 9)
diff --git a/src/main/redis/connection.ts b/src/main/redis/connection.ts
index 51230a4..6b9cb31 100644
--- a/src/main/redis/connection.ts
+++ b/src/main/redis/connection.ts
@@ -63,8 +63,8 @@ async function createSshTunnel(opts: ConnectionOptions): Promise<{ localPort: nu
       if (opts.sshPassphrase) {
         sshConfig.passphrase = opts.sshPassphrase
       }
-    } catch {
-      // private key file not found, fall through to password auth
+    } catch (e) {
+      console.warn(`Failed to read SSH private key file: ${opts.sshPrivateKeyPath}`, e)
     }
   }
 
@@ -135,13 +135,13 @@ function buildRedisOptions(opts: ConnectionOptions): RedisOptions {
       checkServerIdentity: () => undefined,
     }
     if (opts.tlsCaPath) {
-      try { tlsOpts.ca = readFileSync(expandHomePath(opts.tlsCaPath)) } catch { /* ignore */ }
+      try { tlsOpts.ca = readFileSync(expandHomePath(opts.tlsCaPath)) } catch (e) { console.warn(`Failed to read TLS CA file: ${opts.tlsCaPath}`, e) }
     }
     if (opts.tlsCertPath) {
-      try { tlsOpts.cert = readFileSync(expandHomePath(opts.tlsCertPath)) } catch { /* ignore */ }
+      try { tlsOpts.cert = readFileSync(expandHomePath(opts.tlsCertPath)) } catch (e) { console.warn(`Failed to read TLS cert file: ${opts.tlsCertPath}`, e) }
     }
     if (opts.tlsKeyPath) {
-      try { tlsOpts.key = readFileSync(expandHomePath(opts.tlsKeyPath)) } catch { /* ignore */ }
+      try { tlsOpts.key = readFileSync(expandHomePath(opts.tlsKeyPath)) } catch (e) { console.warn(`Failed to read TLS key file: ${opts.tlsKeyPath}`, e) }
     }
     options.tls = tlsOpts
   }
diff --git a/src/main/redis/string.ts b/src/main/redis/string.ts
index 5f297ab..b10465a 100644
--- a/src/main/redis/string.ts
+++ b/src/main/redis/string.ts
@@ -22,7 +22,3 @@ export async function rejsonSet(id: string, key: string, path: string, value: st
   await (client as any).call('JSON.SET', key, path, value)
 }
 
-export async function rejsonDel(id: string, key: string, path: string = '.'): Promise<number> {
-  const client = requireClient(id)
-  return (client as any).call('JSON.DEL', key, path)
-}
diff --git a/src/main/store.ts b/src/main/store.ts
index db66e10..6a9161e 100644
--- a/src/main/store.ts
+++ b/src/main/store.ts
@@ -30,6 +30,7 @@ interface ConnectionConfig {
   order: number
   createdAt: number
   color?: string
+  version?: number
 }
 
 interface AppSettings {
@@ -42,8 +43,11 @@ interface AppSettings {
 interface AppStorage {
   connections: ConnectionConfig[]
   settings: AppSettings
+  schemaVersion?: number
 }
 
+const CURRENT_SCHEMA_VERSION = 1
+
 const store = new Store<AppStorage>({
   name: 'jrdm-config',
   defaults: {
@@ -57,5 +61,24 @@ const store = new Store<AppStorage>({
   },
 })
 
+// Migration: ensure all connections have a version field
+function migrateConnections(): void {
+  const connections = store.get('connections', []) as ConnectionConfig[]
+  let needsUpdate = false
+  for (const conn of connections) {
+    if (!conn.version) {
+      conn.version = CURRENT_SCHEMA_VERSION
+      needsUpdate = true
+    }
+  }
+  if (needsUpdate) {
+    store.set('connections', connections)
+  }
+  store.set('schemaVersion', CURRENT_SCHEMA_VERSION)
+}
+
+// Run migration on module load
+migrateConnections()
+
 export default store
 export type { ConnectionConfig, AppSettings }
diff --git a/src/preload/index.d.ts b/src/preload/index.d.ts
index 027df09..4539814 100644
--- a/src/preload/index.d.ts
+++ b/src/preload/index.d.ts
@@ -1,5 +1,57 @@
 /// <reference types="vite/client" />
 
+// --- Inline types for IPC boundary (no import from main process) ---
+
+interface ConnectionConfig {
+  id: string
+  name: string
+  host: string
+  port: number
+  auth: string
+  username: string
+  tls: boolean
+  tlsCaPath: string
+  tlsCertPath: string
+  tlsKeyPath: string
+  tlsRejectUnauthorized: boolean
+  sshEnabled: boolean
+  sshHost: string
+  sshPort: number
+  sshUsername: string
+  sshPassword: string
+  sshPrivateKeyPath: string
+  sshPassphrase: string
+  cluster: boolean
+  sentinelEnabled: boolean
+  sentinelHost: string
+  sentinelPort: number
+  sentinelMasterName: string
+  sentinelNodePassword: string
+  separator: string
+  scanCount?: number
+  order: number
+  createdAt: number
+  color?: string
+  version?: number
+}
+
+interface AppSettings {
+  theme: 'system' | 'dark' | 'light'
+  locale: string
+  fontSize: number
+  scanCount: number
+  [key: string]: unknown
+}
+
+interface CommandEntry {
+  id: number
+  time: string
+  connection: string
+  command: string
+  duration: number
+  isWrite: boolean
+}
+
 /**
  * Electron preload bridge type declarations.
  *
@@ -21,33 +73,33 @@ export interface ElectronAPI {
     openFile: (options: {
       title?: string
       filters?: { name: string; extensions: string[] }[]
-    }) => Promise<any>
+    }) => Promise<{ path: string; content: string } | null>
   }
   credential: {
     encrypt: (text: string) => Promise<string>
     decrypt: (encoded: string) => Promise<string>
   }
   storage: {
-    getConnections: () => Promise<any[]>
-    saveConnection: (conn: any) => Promise<any[]>
-    deleteConnection: (id: string) => Promise<any[]>
-    reorderConnections: (ids: string[]) => Promise<any[]>
-    getSettings: () => Promise<any>
-    saveSettings: (settings: any) => Promise<void>
+    getConnections: () => Promise<ConnectionConfig[]>
+    saveConnection: (conn: ConnectionConfig) => Promise<ConnectionConfig[]>
+    deleteConnection: (id: string) => Promise<ConnectionConfig[]>
+    reorderConnections: (ids: string[]) => Promise<ConnectionConfig[]>
+    getSettings: () => Promise<AppSettings | null>
+    saveSettings: (settings: AppSettings) => Promise<void>
   }
   redis: {
     // Connection
-    connect: (id: string, opts: any) => Promise<any>
+    connect: (id: string, opts: Record<string, unknown>) => Promise<{ success: boolean; error?: string }>
     disconnect: (id: string) => Promise<void>
-    execute: (id: string, command: string, args: string[]) => Promise<any>
-    executeUnsafe: (id: string, command: string, args: string[]) => Promise<any>
+    execute: (id: string, command: string, args: string[]) => Promise<unknown>
+    executeUnsafe: (id: string, command: string, args: string[]) => Promise<unknown>
     getInfo: (id: string) => Promise<string>
     ping: (id: string) => Promise<string>
     isConnected: (id: string) => Promise<boolean>
     selectDb: (id: string, db: number) => Promise<void>
     dbSize: (id: string) => Promise<number>
     // Key operations
-    scanKeys: (id: string, cursor: string, pattern: string, count: number) => Promise<any>
+    scanKeys: (id: string, cursor: string, pattern: string, count: number) => Promise<{ cursor: string; keys: string[] }>
     getKeyType: (id: string, key: string) => Promise<string>
     getKeyTTL: (id: string, key: string) => Promise<number>
     deleteKey: (id: string, key: string) => Promise<void>
@@ -61,7 +113,7 @@ export interface ElectronAPI {
     getString: (id: string, key: string) => Promise<string | null>
     setString: (id: string, key: string, value: string) => Promise<void>
     // Hash
-    hashScan: (id: string, key: string, cursor: string, count: number) => Promise<any>
+    hashScan: (id: string, key: string, cursor: string, count: number) => Promise<{ cursor: string; fields: [string, string][] }>
     hashSet: (id: string, key: string, field: string, value: string) => Promise<void>
     hashDel: (id: string, key: string, field: string) => Promise<void>
     // List
@@ -87,55 +139,55 @@ export interface ElectronAPI {
     zsetAdd: (id: string, key: string, score: number, member: string) => Promise<number>
     zsetRemove: (id: string, key: string, members: string[]) => Promise<number>
     // Stream
-    streamInfo: (id: string, key: string) => Promise<any>
+    streamInfo: (id: string, key: string) => Promise<Record<string, unknown>>
     streamRange: (
       id: string,
       key: string,
       start: string,
       end: string,
       count: number,
-    ) => Promise<any[]>
-    streamAdd: (id: string, key: string, streamId: string, fieldValues: string[]) => Promise<string>
+    ) => Promise<Array<[string, string[]]>>
+    streamAdd: (id: string, key: string, streamId: string, fieldValues: string[]) => Promise<string | null>
     streamTrim: (id: string, key: string, maxLen: number) => Promise<number>
     streamDel: (id: string, key: string, ids: string[]) => Promise<number>
-    streamGroups: (id: string, key: string) => Promise<any[]>
-    streamConsumers: (id: string, key: string, group: string) => Promise<any[]>
+    streamGroups: (id: string, key: string) => Promise<Record<string, unknown>[]>
+    streamConsumers: (id: string, key: string, group: string) => Promise<Record<string, unknown>[]>
     streamGroupCreate: (
       id: string,
       key: string,
       group: string,
       startId: string,
       mkstream: boolean,
-    ) => Promise<any>
+    ) => Promise<string>
     streamGroupDestroy: (id: string, key: string, group: string) => Promise<number>
     streamAck: (id: string, key: string, group: string, ids: string[]) => Promise<number>
     // ReJson
     rejsonGet: (id: string, key: string, path: string) => Promise<string>
     rejsonSet: (id: string, key: string, path: string, value: string) => Promise<void>
     // Slow log
-    slowLogGet: (id: string, count: number) => Promise<any[]>
+    slowLogGet: (id: string, count: number) => Promise<Record<string, unknown>[]>
     slowLogLen: (id: string) => Promise<number>
     // Command log
-    getCommandLog: () => Promise<any[]>
+    getCommandLog: () => Promise<CommandEntry[]>
     clearCommandLog: () => Promise<void>
     // Format
     decodeValue: (value: string, format: string) => Promise<string>
     detectFormat: (value: string) => Promise<string>
     customFormat: (value: string, command: string, key: string) => Promise<string>
     // Pub/Sub
-    subscribe: (id: string, channels: string[], isPattern: boolean) => Promise<any>
+    subscribe: (id: string, channels: string[], isPattern: boolean) => Promise<{ success: boolean; error?: string }>
     unsubscribe: (id: string) => Promise<void>
-    onSubscribeMessage: (callback: (msg: any) => void) => () => void
+    onSubscribeMessage: (callback: (msg: { channel?: string; message?: string; pattern?: string; error?: string }) => void) => () => void
     // Monitor
-    monitor: (id: string) => Promise<any>
+    monitor: (id: string) => Promise<{ success: boolean; error?: string }>
     monitorStop: (id: string) => Promise<void>
-    onMonitorMessage: (callback: (msg: any) => void) => () => void
+    onMonitorMessage: (callback: (msg: { time?: string; args?: string[]; source?: string; database?: number; error?: string }) => void) => () => void
   }
   updater: {
-    check: () => Promise<any>
-    download: () => Promise<any>
-    install: () => Promise<any>
-    onStatus: (callback: (status: any) => void) => void
+    check: () => Promise<{ available: boolean; version?: string }>
+    download: () => Promise<{ success: boolean; error?: string }>
+    install: () => Promise<void>
+    onStatus: (callback: (status: Record<string, unknown>) => void) => void
   }
 }
 
diff --git a/src/renderer/src/components/editors/HashEditor.vue b/src/renderer/src/components/editors/HashEditor.vue
index c300ae7..98fd3a9 100644
--- a/src/renderer/src/components/editors/HashEditor.vue
+++ b/src/renderer/src/components/editors/HashEditor.vue
@@ -3,20 +3,11 @@ import { ref, watch, computed, onMounted } from 'vue'
 import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage, ElMessageBox } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const { t } = useI18n()
 
diff --git a/src/renderer/src/components/editors/ListEditor.vue b/src/renderer/src/components/editors/ListEditor.vue
index 5e0484e..6245058 100644
--- a/src/renderer/src/components/editors/ListEditor.vue
+++ b/src/renderer/src/components/editors/ListEditor.vue
@@ -3,20 +3,11 @@ import { ref, watch, computed } from 'vue'
 import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage, ElMessageBox } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const { t } = useI18n()
 
diff --git a/src/renderer/src/components/editors/ReJsonEditor.vue b/src/renderer/src/components/editors/ReJsonEditor.vue
index 5d1f2db..b830b49 100644
--- a/src/renderer/src/components/editors/ReJsonEditor.vue
+++ b/src/renderer/src/components/editors/ReJsonEditor.vue
@@ -5,21 +5,11 @@ import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useAppStore } from '@renderer/stores/app'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-    json: 'var(--color-blue)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const appStore = useAppStore()
 const { t } = useI18n()
diff --git a/src/renderer/src/components/editors/SetEditor.vue b/src/renderer/src/components/editors/SetEditor.vue
index 4a64e05..4942068 100644
--- a/src/renderer/src/components/editors/SetEditor.vue
+++ b/src/renderer/src/components/editors/SetEditor.vue
@@ -3,20 +3,11 @@ import { ref, watch, computed } from 'vue'
 import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage, ElMessageBox } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const { t } = useI18n()
 
@@ -71,12 +62,10 @@ async function removeMember(member: string) {
   }
 }
 
-const filteredMembers = ref<string[]>([])
-watch([members, filterText], () => {
-  filteredMembers.value = filterText.value
-    ? members.value.filter(m => m.toLowerCase().includes(filterText.value.toLowerCase()))
-    : members.value
-}, { immediate: true })
+const filteredMembers = computed(() => {
+  if (!filterText.value) return members.value
+  return members.value.filter(m => m.toLowerCase().includes(filterText.value.toLowerCase()))
+})
 </script>
 
 <template>
diff --git a/src/renderer/src/components/editors/StreamEditor.vue b/src/renderer/src/components/editors/StreamEditor.vue
index 4acf713..4b13b43 100644
--- a/src/renderer/src/components/editors/StreamEditor.vue
+++ b/src/renderer/src/components/editors/StreamEditor.vue
@@ -3,20 +3,11 @@ import { ref, watch, computed } from 'vue'
 import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage, ElMessageBox } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const { t } = useI18n()
 
diff --git a/src/renderer/src/components/editors/StringEditor.vue b/src/renderer/src/components/editors/StringEditor.vue
index 2be37a6..4c9655e 100644
--- a/src/renderer/src/components/editors/StringEditor.vue
+++ b/src/renderer/src/components/editors/StringEditor.vue
@@ -5,20 +5,11 @@ import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useAppStore } from '@renderer/stores/app'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const appStore = useAppStore()
 const { t } = useI18n()
diff --git a/src/renderer/src/components/editors/ZsetEditor.vue b/src/renderer/src/components/editors/ZsetEditor.vue
index 89ef1a8..0e366e7 100644
--- a/src/renderer/src/components/editors/ZsetEditor.vue
+++ b/src/renderer/src/components/editors/ZsetEditor.vue
@@ -3,20 +3,11 @@ import { ref, watch, computed } from 'vue'
 import { useKeyStore } from '@renderer/stores/key'
 import { useConnectionStore } from '@renderer/stores/connection'
 import { useI18n } from '@renderer/i18n'
+import { useTypeColor } from '@renderer/composables/useTypeColor'
 import { ElMessage, ElMessageBox } from 'element-plus'
 
 const keyStore = useKeyStore()
-const typeColor = computed(() => {
-  const colors: Record<string, string> = {
-    string: 'var(--color-green)',
-    hash: 'var(--color-yellow)',
-    list: 'var(--color-cyan)',
-    set: 'var(--color-purple)',
-    zset: 'var(--color-red)',
-    stream: 'var(--color-orange)',
-  }
-  return colors[keyStore.selectedType || ''] || 'var(--text-muted)'
-})
+const { typeColor } = useTypeColor(() => keyStore.selectedType)
 const connStore = useConnectionStore()
 const { t } = useI18n()
 
@@ -81,8 +72,7 @@ async function removeMember(member: string) {
   }
 }
 
-const filteredItems = ref<ZsetItem[]>([])
-watch([items, filterText, sortOrder], () => {
+const filteredItems = computed(() => {
   let result = items.value
   if (filterText.value) {
     const lower = filterText.value.toLowerCase()
@@ -90,11 +80,10 @@ watch([items, filterText, sortOrder], () => {
       i.member.toLowerCase().includes(lower) || String(i.score).includes(lower)
     )
   }
-  result = [...result].sort((a, b) =>
+  return [...result].sort((a, b) =>
     sortOrder.value === 'asc' ? a.score - b.score : b.score - a.score
   )
-  filteredItems.value = result
-}, { immediate: true })
+})
 </script>
 
 <template>
diff --git a/src/renderer/src/components/key/KeyDetail.vue b/src/renderer/src/components/key/KeyDetail.vue
index 53c1408..6a456ca 100644
--- a/src/renderer/src/components/key/KeyDetail.vue
+++ b/src/renderer/src/components/key/KeyDetail.vue
@@ -95,7 +95,7 @@ async function saveTtl() {
     keyStore.selectedTTL = ttlValue.value
     liveTTL.value = ttlValue.value
     showTtlDialog.value = false
-    ElMessage.success('TTL updated')
+    ElMessage.success(t('key.ttlUpdated'))
   } catch (err: any) {
     ElMessage.error(err.message)
   }
@@ -115,14 +115,14 @@ async function saveRename() {
   try {
     const exists = await window.electronAPI.redis.existsKey(connStore.activeId, newName.value)
     if (exists) {
-      ElMessage.error('Key already exists')
+      ElMessage.error(t('key.exists'))
       return
     }
     await window.electronAPI.redis.renameKey(connStore.activeId, keyStore.selectedKey, newName.value)
     const oldKey = keyStore.selectedKey
     keyStore.selectedKey = newName.value
     showRenameDialog.value = false
-    ElMessage.success('Renamed')
+    ElMessage.success(t('key.renamed'))
     // Update in key list
     const idx = keyStore.keys.findIndex(k => k.name === oldKey)
     if (idx >= 0) keyStore.keys[idx].name = newName.value
@@ -135,9 +135,9 @@ async function copyKeyName() {
   if (!keyStore.selectedKey) return
   try {
     await navigator.clipboard.writeText(keyStore.selectedKey)
-    ElMessage.success('Copied')
+    ElMessage.success(t('key.copied'))
   } catch {
-    ElMessage.error('Copy failed')
+    ElMessage.error(t('key.copyFailed'))
   }
 }
 
@@ -148,16 +148,16 @@ async function copyHexKeyName() {
     await navigator.clipboard.writeText(hex)
     ElMessage.success(t('key.copied'))
   } catch {
-    ElMessage.error('Copy failed')
+    ElMessage.error(t('key.copyFailed'))
   }
 }
 
 async function deleteKey() {
   if (!connStore.activeId || !keyStore.selectedKey) return
   try {
-    await ElMessageBox.confirm(`Delete key "${keyStore.selectedKey}"?`, 'Confirm')
+    await ElMessageBox.confirm(t('key.deleteConfirm', { key: keyStore.selectedKey }), t('common.confirm'))
     await window.electronAPI.redis.deleteKey(connStore.activeId, keyStore.selectedKey)
-    ElMessage.success('Deleted')
+    ElMessage.success(t('key.deleted'))
     keyStore.selectedKey = null
     keyStore.keyData = null
   } catch (err: any) {
diff --git a/src/renderer/src/components/layout/Sidebar.vue b/src/renderer/src/components/layout/Sidebar.vue
index 4ed9bdd..13d583e 100644
--- a/src/renderer/src/components/layout/Sidebar.vue
+++ b/src/renderer/src/components/layout/Sidebar.vue
@@ -142,7 +142,7 @@ useKeyboard({
       <ConnectionList @edit="handleEdit" />
     </div>
     <div class="drag-handle" @mousedown="startResize"></div>
-    <button class="collapse-btn" @click="collapsed = !collapsed" :title="collapsed ? '展开' : '收缩'">
+    <button class="collapse-btn" @click="collapsed = !collapsed" :title="collapsed ? t('sidebar.expand') : t('sidebar.collapse')">
       <el-icon style="color: #409EFF; font-size: 20px;">
         <component :is="collapsed ? 'ArrowRight' : 'ArrowLeft'" />
       </el-icon>
diff --git a/src/renderer/src/components/layout/TitleBar.vue b/src/renderer/src/components/layout/TitleBar.vue
index e6dde8c..3963ca5 100644
--- a/src/renderer/src/components/layout/TitleBar.vue
+++ b/src/renderer/src/components/layout/TitleBar.vue
@@ -29,12 +29,12 @@ function openSettings() {
       <button class="titlebar-btn" :title="t('settings.title')" @click="openSettings">
         <el-icon><Setting /></el-icon>
       </button>
-      <button class="titlebar-btn" title="Toggle theme" @click="toggleTheme">
+      <button class="titlebar-btn" :title="t('titleBar.toggleTheme')" @click="toggleTheme">
         {{ appStore.isDark ? '☀' : '☾' }}
       </button>
-      <button class="titlebar-btn" title="Minimize" @click="minimize">─</button>
-      <button class="titlebar-btn" title="Maximize" @click="maximize">☐</button>
-      <button class="titlebar-btn titlebar-btn-close" title="Close" @click="close">✕</button>
+      <button class="titlebar-btn" :title="t('titleBar.minimize')" @click="minimize">─</button>
+      <button class="titlebar-btn" :title="t('titleBar.maximize')" @click="maximize">☐</button>
+      <button class="titlebar-btn titlebar-btn-close" :title="t('titleBar.close')" @click="close">✕</button>
     </div>
   </header>
 </template>
diff --git a/src/renderer/src/components/views/CliView.vue b/src/renderer/src/components/views/CliView.vue
index 61bda6f..3e039f5 100644
--- a/src/renderer/src/components/views/CliView.vue
+++ b/src/renderer/src/components/views/CliView.vue
@@ -139,28 +139,7 @@ async function execute() {
     }
 
     const result = await window.electronAPI.redis.executeUnsafe(connStore.activeId, command, args)
-    let formatted = ''
-
-    if (result === null) {
-      formatted = '(nil)'
-    } else if (typeof result === 'number') {
-      formatted = `(integer) ${result}`
-    } else if (Array.isArray(result)) {
-      if (result.length === 0) {
-        formatted = '(empty array)'
-      } else {
-        formatted = result.map((item: any, i: number) => {
-          if (item === null) return `${i + 1}) (nil)`
-          if (typeof item === 'number') return `${i + 1}) (integer) ${item}`
-          return `${i + 1}) "${item}"`
-        }).join('\n')
-      }
-    } else if (typeof result === 'object') {
-      formatted = JSON.stringify(result, null, 2)
-    } else {
-      formatted = String(result)
-    }
-
+    const formatted = formatRedisResult(result)
     history.value.push({ cmd, result: formatted })
 
     // Dispatch refresh-key-list for write commands
@@ -246,26 +225,7 @@ async function importCommands() {
 
     try {
       const result = await window.electronAPI.redis.executeUnsafe(connStore.activeId, command, cmdArgs)
-      let formatted = ''
-      if (result === null) {
-        formatted = '(nil)'
-      } else if (typeof result === 'number') {
-        formatted = `(integer) ${result}`
-      } else if (Array.isArray(result)) {
-        if (result.length === 0) {
-          formatted = '(empty array)'
-        } else {
-          formatted = result.map((item: any, i: number) => {
-            if (item === null) return `${i + 1}) (nil)`
-            if (typeof item === 'number') return `${i + 1}) (integer) ${item}`
-            return `${i + 1}) "${item}"`
-          }).join('\n')
-        }
-      } else if (typeof result === 'object') {
-        formatted = JSON.stringify(result, null, 2)
-      } else {
-        formatted = String(result)
-      }
+      const formatted = formatRedisResult(result)
       history.value.push({ cmd: trimmed, result: formatted })
       executed++
     } catch (err: any) {
@@ -327,6 +287,29 @@ function onKeydown(e: KeyboardEvent) {
   }
 }
 
+function formatRedisResult(result: any): string {
+  if (result === null) {
+    return '(nil)'
+  }
+  if (typeof result === 'number') {
+    return `(integer) ${result}`
+  }
+  if (Array.isArray(result)) {
+    if (result.length === 0) {
+      return '(empty array)'
+    }
+    return result.map((item: any, i: number) => {
+      if (item === null) return `${i + 1}) (nil)`
+      if (typeof item === 'number') return `${i + 1}) (integer) ${item}`
+      return `${i + 1}) "${item}"`
+    }).join('\n')
+  }
+  if (typeof result === 'object') {
+    return JSON.stringify(result, null, 2)
+  }
+  return String(result)
+}
+
 function categoryColor(category: string): string {
   switch (category) {
     case 'admin': return 'var(--color-red)'
diff --git a/src/renderer/src/components/views/CommandLog.vue b/src/renderer/src/components/views/CommandLog.vue
index 71717fb..70178d4 100644
--- a/src/renderer/src/components/views/CommandLog.vue
+++ b/src/renderer/src/components/views/CommandLog.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, onMounted } from 'vue'
+import { ref, computed, onMounted } from 'vue'
 import { useI18n } from '@renderer/i18n'
 
 const { t } = useI18n()
@@ -17,12 +17,12 @@ const entries = ref<CommandEntry[]>([])
 const onlyWrite = ref(false)
 const visible = defineModel<boolean>('visible', { default: false })
 
-const filteredEntries = () => {
+const filteredEntries = computed(() => {
   if (onlyWrite.value) {
     return entries.value.filter(e => e.isWrite)
   }
   return entries.value
-}
+})
 
 function formatTime(iso: string): string {
   const d = new Date(iso)
@@ -73,7 +73,7 @@ defineExpose({ refresh })
     </div>
     <div class="cmdlog-table-wrap">
       <el-table
-        :data="filteredEntries()"
+        :data="filteredEntries"
         size="small"
         stripe
         height="420"
diff --git a/src/renderer/src/composables/useTypeColor.ts b/src/renderer/src/composables/useTypeColor.ts
new file mode 100644
index 0000000..8ad2eb0
--- /dev/null
+++ b/src/renderer/src/composables/useTypeColor.ts
@@ -0,0 +1,16 @@
+import { computed } from 'vue'
+
+const TYPE_COLORS: Record<string, string> = {
+  string: 'var(--color-green)',
+  hash: 'var(--color-yellow)',
+  list: 'var(--color-cyan)',
+  set: 'var(--color-purple)',
+  zset: 'var(--color-red)',
+  stream: 'var(--color-orange)',
+  json: 'var(--color-blue)',
+}
+
+export function useTypeColor(typeGetter: () => string) {
+  const typeColor = computed(() => TYPE_COLORS[typeGetter()] || 'var(--text-muted)')
+  return { typeColor }
+}
diff --git a/src/renderer/src/i18n/locales/de.ts b/src/renderer/src/i18n/locales/de.ts
index b27136f..3ddd95f 100644
--- a/src/renderer/src/i18n/locales/de.ts
+++ b/src/renderer/src/i18n/locales/de.ts
@@ -135,6 +135,7 @@ export default {
     importFailed: 'Import fehlgeschlagen: {error}',
     binaryKey: 'Binärschlüssel',
     copyHex: 'Hex kopieren',
+    copyFailed: 'Kopieren fehlgeschlagen',
     copyKeyName: 'Schlüsselname kopieren',
     copyValue: 'Wert kopieren',
     memoryUsage: 'Speichernutzung',
@@ -321,6 +322,16 @@ export default {
     keyCount: '{n} Schlüssel',
     noKeys: 'leer',
   },
+  titleBar: {
+    toggleTheme: 'Design umschalten',
+    minimize: 'Minimieren',
+    maximize: 'Maximieren',
+    close: 'Schließen',
+  },
+  sidebar: {
+    expand: 'Erweitern',
+    collapse: 'Einklappen',
+  },
   settings: {
     title: 'Einstellungen',
     appearanceSection: 'Aussehen',
diff --git a/src/renderer/src/i18n/locales/en.ts b/src/renderer/src/i18n/locales/en.ts
index d67d5b1..4f08162 100644
--- a/src/renderer/src/i18n/locales/en.ts
+++ b/src/renderer/src/i18n/locales/en.ts
@@ -135,6 +135,7 @@ export default {
     importFailed: 'Import failed: {error}',
     binaryKey: 'Binary Key',
     copyHex: 'Copy Hex',
+    copyFailed: 'Copy failed',
     copyKeyName: 'Copy Key Name',
     copyValue: 'Copy Value',
     memoryUsage: 'Memory Usage',
@@ -321,6 +322,16 @@ export default {
     keyCount: '{n} keys',
     noKeys: 'empty',
   },
+  titleBar: {
+    toggleTheme: 'Toggle theme',
+    minimize: 'Minimize',
+    maximize: 'Maximize',
+    close: 'Close',
+  },
+  sidebar: {
+    expand: 'Expand',
+    collapse: 'Collapse',
+  },
   settings: {
     title: 'Settings',
     appearanceSection: 'Appearance',
diff --git a/src/renderer/src/i18n/locales/ja.ts b/src/renderer/src/i18n/locales/ja.ts
index 140fb96..d916fed 100644
--- a/src/renderer/src/i18n/locales/ja.ts
+++ b/src/renderer/src/i18n/locales/ja.ts
@@ -135,6 +135,7 @@ export default {
     importFailed: 'インポートに失敗しました: {error}',
     binaryKey: 'バイナリキー',
     copyHex: 'Hexをコピー',
+    copyFailed: 'コピーに失敗しました',
     copyKeyName: 'キー名をコピー',
     copyValue: '値をコピー',
     memoryUsage: 'メモリ使用量',
@@ -321,6 +322,16 @@ export default {
     keyCount: '{n} 個のキー',
     noKeys: '空',
   },
+  titleBar: {
+    toggleTheme: 'テーマ切り替え',
+    minimize: '最小化',
+    maximize: '最大化',
+    close: '閉じる',
+  },
+  sidebar: {
+    expand: '展開',
+    collapse: '収縮',
+  },
   settings: {
     title: '設定',
     appearanceSection: '外観',
diff --git a/src/renderer/src/i18n/locales/ko.ts b/src/renderer/src/i18n/locales/ko.ts
index 86ba368..2557b02 100644
--- a/src/renderer/src/i18n/locales/ko.ts
+++ b/src/renderer/src/i18n/locales/ko.ts
@@ -135,6 +135,7 @@ export default {
     importFailed: '가져오기 실패: {error}',
     binaryKey: '바이너리 키',
     copyHex: 'Hex 복사',
+    copyFailed: '복사 실패',
     copyKeyName: '키 이름 복사',
     copyValue: '값 복사',
     memoryUsage: '메모리 사용량',
@@ -321,6 +322,16 @@ export default {
     keyCount: '{n}개 키',
     noKeys: '비어 있음',
   },
+  titleBar: {
+    toggleTheme: '테마 전환',
+    minimize: '최소화',
+    maximize: '최대화',
+    close: '닫기',
+  },
+  sidebar: {
+    expand: '펼치기',
+    collapse: '접기',
+  },
   settings: {
     title: '설정',
     appearanceSection: '외관',
diff --git a/src/renderer/src/i18n/locales/zh-CN.ts b/src/renderer/src/i18n/locales/zh-CN.ts
index 37cf367..3ee6dd2 100644
--- a/src/renderer/src/i18n/locales/zh-CN.ts
+++ b/src/renderer/src/i18n/locales/zh-CN.ts
@@ -135,6 +135,7 @@ export default {
     importFailed: '导入失败: {error}',
     binaryKey: '二进制键',
     copyHex: '复制 Hex',
+    copyFailed: '复制失败',
     copyKeyName: '复制键名',
     copyValue: '复制值',
     memoryUsage: '内存占用',
@@ -321,6 +322,16 @@ export default {
     keyCount: '{n} 个键',
     noKeys: '空',
   },
+  titleBar: {
+    toggleTheme: '切换主题',
+    minimize: '最小化',
+    maximize: '最大化',
+    close: '关闭',
+  },
+  sidebar: {
+    expand: '展开',
+    collapse: '收缩',
+  },
   settings: {
     title: '设置',
     appearanceSection: '外观',