feat: P3 final batch - zoom, fonts, dark mode, tech debt cleanup

- Page zoom control (0.5-2.0x, localStorage)
- Custom monospace font selector (6 presets + custom)
- Element Plus dark mode final fixes (dropdown, message-box, switch, popper)
- AGENTS.md updated with correct paths + new modules/components/IPC channels
- ROADMAP: window state persistence already done via win-state.ts
- ROADMAP: tech debt items marked done

AGENTS.md

@@ -8,7 +8,7 @@ Fork of [AnotherRedisDesktopManager](https://github.com/qishibo/AnotherRedisDesk
 
 - **Shell:** Electron 43 (`electron/main/index.ts`)
 - **Preload:** `electron/preload/index.ts` (contextBridge, typed API)
-- **Renderer:** Vue 3 + Pinia + Element Plus + Vue Router (`src/renderer/`)
+- **Renderer:** Vue 3 + Pinia + Element Plus + Vue Router (`src/`)
 - **Shared:** `electron/shared/types.ts` (cross-process types)
 - **Build:** electron-vite + Vite 6 + TypeScript 5
 - **Redis client:** ioredis 5 (main process only)
@@ -41,20 +41,21 @@ Electron main (electron/main/)
   │   ├── set.ts         # members, add, remove
   │   ├── zset.ts        # range, add, remove
   │   ├── stream.ts      # info, range, add, trim
-  │   └── server.ts      # info, select, ping, slowlog
+  │   ├── server.ts      # info, select, ping, slowlog
+  │   ├── pubsub.ts      # SUBSCRIBE/UNSUBSCRIBE
+  │   ├── commandLogger.ts # command execution log
+  │   └── format.ts      # value decode/format detection
   ├── store.ts           # electron-store (connections, settings)
   ├── credential.ts      # safeStorage encrypt/decrypt
   ├── win-state.ts       # window position persistence
+  ├── updater.ts         # electron-updater (check/download/install)
   └── ipc-handlers.ts    # all IPC channel handlers
 
 Preload (electron/preload/)
   ├── index.ts           # contextBridge.exposeInMainWorld
   └── index.d.ts         # ElectronAPI type declarations
 
-Shared (electron/shared/)
-  └── types.ts           # Cross-process type definitions
-
-Renderer (src/renderer/src/)
+Renderer (src/)
   ├── main.ts            # Vue 3 bootstrap (Pinia, Element Plus)
   ├── App.vue            # Shell layout (TitleBar + Sidebar + MainArea + StatusBar)
   ├── stores/
@@ -82,14 +83,24 @@ Renderer (src/renderer/src/)
   │   ├── StreamEditor.vue   # stream entries
   │   ├── CliView.vue        # interactive terminal
   │   ├── SlowLogView.vue    # slow log table
-  │   └── SettingsView.vue   # theme, language, scan count
+  │   ├── SettingsView.vue   # theme, language, scan count
+  │   ├── MemoryAnalysis.vue # MEMORY USAGE scan & sort
+  │   ├── CommandLog.vue     # command execution history
+  │   └── ReJsonEditor.vue   # JSON.GET / JSON.SET editing
   ├── i18n/
   │   ├── index.ts           # useI18n composable
   │   └── locales/
   │       ├── en.ts          # English
   │       └── zh-CN.ts       # 中文
-  └── composables/
-      └── useKeyboard.ts     # keyboard shortcut handler
+  ├── composables/
+  │   └── useKeyboard.ts     # keyboard shortcut handler
+  ├── styles/
+  │   ├── variables.css      # CSS custom properties
+  │   └── global.css         # global overrides
+  ├── data/
+  │   └── commands.ts        # Redis command definitions
+  └── utils/
+      └── binary.ts          # hex ↔ buffer conversion
 ```
 
 ## IPC Channels
@@ -120,6 +131,22 @@ Renderer (src/renderer/src/)
 | `redis:dbSize` | invoke | DBSIZE |
 | `redis:slowLogGet` | invoke | SLOWLOG GET |
 | `redis:memoryUsage` | invoke | MEMORY USAGE |
+| `redis:subscribe` | invoke | SUBSCRIBE to channels |
+| `redis:unsubscribe` | invoke | UNSUBSCRIBE from channels |
+| `redis:monitor` | invoke | Start MONITOR stream |
+| `redis:monitorStop` | invoke | Stop MONITOR stream |
+| `redis:getCommandLog` | invoke | Get command execution log |
+| `redis:clearCommandLog` | invoke | Clear command log |
+| `redis:decodeValue` | invoke | Decode value by format |
+| `redis:detectFormat` | invoke | Auto-detect value format |
+| `redis:customFormat` | invoke | Custom external formatter |
+| `redis:streamGroups` | invoke | XINFO GROUPS |
+| `redis:streamConsumers` | invoke | XINFO CONSUMERS |
+| `redis:streamGroupCreate` | invoke | XGROUP CREATE |
+| `redis:streamGroupDestroy` | invoke | XGROUP DESTROY |
+| `redis:streamAck` | invoke | XACK messages |
+| `redis:rejsonGet` | invoke | JSON.GET value |
+| `redis:rejsonSet` | invoke | JSON.SET value |
 | `storage:getConnections` | invoke | Read connections |
 | `storage:saveConnection` | invoke | Save connection |
 | `storage:deleteConnection` | invoke | Delete connection |
@@ -131,6 +158,9 @@ Renderer (src/renderer/src/)
 | `window:minimize` | send | Minimize window |
 | `window:maximize` | send | Toggle maximize |
 | `window:close` | send | Close window |
+| `updater:check` | invoke | Check for updates |
+| `updater:download` | invoke | Download update |
+| `updater:install` | invoke | Quit and install update |
 
 ## Keyboard Shortcuts
 
@@ -152,8 +182,8 @@ Renderer (src/renderer/src/)
 
 - Root `tsconfig.json` references `tsconfig.node.json` (main + preload) and `tsconfig.web.json` (renderer)
 - Node target includes `src/main/**/*`, `src/preload/**/*`, `electron.vite.config.ts`
-- Web target includes `src/renderer/**/*`
-- `@renderer` alias resolves to `src/renderer/src`
+- Web target includes `src/**/*`
+- `@renderer` alias resolves to `src`
 
 ## Security