feat: Redis command autocomplete in CLI

- New src/data/commands.ts: 139 Redis commands across 11 categories
- CliView.vue: autocomplete dropdown with prefix matching
- Category-colored command names (admin=read=green/write=yellow/etc)
- Up/Down navigate suggestions, Tab/Enter selects, Escape closes
- History navigation preserved when suggestions hidden
- Syntax and description shown for each command

src/components/CliView.vue

@@ -1,7 +1,8 @@
 <script setup lang="ts">
 // src/renderer/src/components/CliView.vue
-import { ref, nextTick, watch } from 'vue'
+import { ref, computed, nextTick, watch } from 'vue'
 import { useConnectionStore } from '@renderer/stores/connection'
+import { redisCommands } from '@renderer/data/commands'
 
 const connStore = useConnectionStore()
 
@@ -9,6 +10,26 @@ const input = ref('')
 const history = ref<{ cmd: string; result: string; error?: boolean }[]>([])
 const historyIndex = ref(-1)
 const outputRef = ref<HTMLDivElement>()
+const suggestionIndex = ref(-1)
+
+const showSuggestions = computed(() => {
+  return suggestions.value.length > 0 && !input.value.includes(' ')
+})
+
+const suggestions = computed(() => {
+  const firstWord = input.value.split(/\s+/)[0]
+  if (!firstWord) return []
+  const prefix = firstWord.toUpperCase()
+  return redisCommands
+    .filter(cmd => cmd.name.startsWith(prefix))
+    .slice(0, 8)
+})
+
+function selectSuggestion(cmd: string) {
+  input.value = cmd + ' '
+  suggestionIndex.value = -1
+  inputRef.value?.focus()
+}
 
 async function execute() {
   if (!connStore.activeId || !input.value.trim()) return
@@ -16,6 +37,7 @@ async function execute() {
   const cmd = input.value.trim()
   input.value = ''
   historyIndex.value = -1
+  suggestionIndex.value = -1
 
   const parts = cmd.split(/\s+/)
   const command = parts[0].toUpperCase()
@@ -57,6 +79,30 @@ async function execute() {
 }
 
 function onKeydown(e: KeyboardEvent) {
+  if (showSuggestions.value) {
+    if (e.key === 'ArrowDown') {
+      e.preventDefault()
+      suggestionIndex.value = Math.min(suggestionIndex.value + 1, suggestions.value.length - 1)
+      return
+    }
+    if (e.key === 'ArrowUp') {
+      e.preventDefault()
+      suggestionIndex.value = Math.max(suggestionIndex.value - 1, -1)
+      return
+    }
+    if (e.key === 'Enter' || e.key === 'Tab') {
+      if (suggestionIndex.value >= 0 && suggestionIndex.value < suggestions.value.length) {
+        e.preventDefault()
+        selectSuggestion(suggestions.value[suggestionIndex.value].name)
+        return
+      }
+    }
+    if (e.key === 'Escape') {
+      suggestionIndex.value = -1
+      return
+    }
+  }
+
   if (e.key === 'Enter') {
     e.preventDefault()
     execute()
@@ -77,6 +123,19 @@ function onKeydown(e: KeyboardEvent) {
     }
   }
 }
+
+const inputRef = ref<HTMLInputElement>()
+
+function categoryColor(category: string): string {
+  switch (category) {
+    case 'admin': return 'var(--color-red)'
+    case 'read': return 'var(--color-green)'
+    case 'write': return 'var(--color-yellow)'
+    case 'server': return 'var(--color-blue)'
+    case 'pubsub': return 'var(--color-purple)'
+    default: return 'var(--text-primary)'
+  }
+}
 </script>
 
 <template>
@@ -95,13 +154,30 @@ function onKeydown(e: KeyboardEvent) {
     </div>
     <div class="cli-input-bar">
       <span class="prompt">&gt;</span>
-      <input
-        v-model="input"
-        class="cli-input"
-        placeholder="Enter Redis command..."
-        @keydown="onKeydown"
-        autofocus
-      />
+      <div class="cli-input-wrapper">
+        <input
+          ref="inputRef"
+          v-model="input"
+          class="cli-input"
+          placeholder="Enter Redis command..."
+          @keydown="onKeydown"
+          autofocus
+        />
+        <div v-if="showSuggestions" class="cli-suggestions">
+          <div
+            v-for="(cmd, index) in suggestions"
+            :key="cmd.name"
+            class="cli-suggestion-item"
+            :class="{ active: index === suggestionIndex }"
+            @click="selectSuggestion(cmd.name)"
+            @mouseenter="suggestionIndex = index"
+          >
+            <span class="suggestion-name" :style="{ color: categoryColor(cmd.category) }">{{ cmd.name }}</span>
+            <span class="suggestion-syntax">{{ cmd.syntax }}</span>
+            <span class="suggestion-desc">{{ cmd.description }}</span>
+          </div>
+        </div>
+      </div>
     </div>
   </div>
 </template>
@@ -160,18 +236,76 @@ function onKeydown(e: KeyboardEvent) {
   flex-shrink: 0;
 }
 
-.cli-input {
+.cli-input-wrapper {
   flex: 1;
+  position: relative;
+  margin-left: 6px;
+}
+
+.cli-input {
+  width: 100%;
   background: transparent;
   border: none;
   outline: none;
   color: var(--text-primary);
   font-family: 'Cascadia Code', 'Fira Code', monospace;
   font-size: 13px;
-  margin-left: 6px;
 }
 
 .cli-input::placeholder {
   color: var(--text-muted);
 }
+
+.cli-suggestions {
+  position: absolute;
+  bottom: 100%;
+  left: 0;
+  right: 0;
+  margin-bottom: 4px;
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-color);
+  border-radius: 6px;
+  max-height: 320px;
+  overflow-y: auto;
+  z-index: 100;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
+}
+
+.cli-suggestion-item {
+  display: flex;
+  flex-direction: column;
+  padding: 6px 10px;
+  cursor: pointer;
+  border-bottom: 1px solid var(--border-color);
+  gap: 2px;
+}
+
+.cli-suggestion-item:last-child {
+  border-bottom: none;
+}
+
+.cli-suggestion-item.active,
+.cli-suggestion-item:hover {
+  background: var(--bg-hover);
+}
+
+.suggestion-name {
+  font-weight: 600;
+  font-size: 13px;
+  font-family: 'Cascadia Code', 'Fira Code', monospace;
+}
+
+.suggestion-syntax {
+  font-size: 11px;
+  color: var(--text-muted);
+  font-family: 'Cascadia Code', 'Fira Code', monospace;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.suggestion-desc {
+  font-size: 11px;
+  color: var(--text-secondary);
+}
 </style>