fix(shell): restore all missing imports, constants, and utility functions

- Restore xterm imports (Terminal, FitAddon, WebLinksAddon)
- Restore all lucide-react icons (Globe, X, Plus, ChevronDown, etc.)
- Restore module-level constants (AI_TAB_ID, MAX_TABS, SHELL_MAX_TOKENS,
  TABS_STORAGE_KEY, TERMINAL_BUFFER_KEY)
- Restore renderContent() and formatText() utility functions
- Add @xterm/xterm CSS import
- Remove duplicate constants from inside Shell component

💘 Generated with Crush

Assisted-by: GLM-5.1 via Crush <crush@charm.land>

web/src/components/Shell.jsx

@@ -1,11 +1,12 @@
-import { useState, useRef, useEffect, useCallback } from 'react'
+import { useState, useRef, useEffect, useCallback, useMemo } from 'react'
 import { Terminal as XTerm } from '@xterm/xterm'
 import { FitAddon } from '@xterm/addon-fit'
 import { WebLinksAddon } from '@xterm/addon-web-links'
-import { Plus, X, Monitor, Globe, ChevronDown, Pencil, Trash2, Search, Copy, Send, Eye } from 'lucide-react'
+import { Plus, X, Monitor, Globe, ChevronDown, Pencil, Trash2, Search, Copy, Send, Eye, Bot } from 'lucide-react'
 import '@xterm/xterm/css/xterm.css'
 import { useI18n } from '../i18n'
 
+const AI_TAB_ID = 0
 const MAX_TABS = 7
 const SHELL_MAX_TOKENS = 100000
 const TABS_STORAGE_KEY = 'muyue_shell_tabs'
@@ -67,7 +68,70 @@ function formatText(text) {
   return html
 }
 
+// === Style thème système pour xterm ===
+function getCSSVariable(varName) {
+  if (typeof document === 'undefined') return null;
+  return getComputedStyle(document.documentElement).getPropertyValue(varName).trim() || null;
+}
+
+function parseHexColor(hex) {
+  if (!hex || hex.startsWith('var(')) return null;
+  hex = hex.replace('#', '');
+  if (hex.length === 3) hex = hex.split('').map(c => c + c).join('');
+  if (hex.length !== 6) return null;
+  const r = parseInt(hex.slice(0, 2), 16);
+  const g = parseInt(hex.slice(2, 4), 16);
+  const b = parseInt(hex.slice(4, 6), 16);
+  return { r, g, b };
+}
+
+function toRgbString(hex) {
+  const c = parseHexColor(hex);
+  if (!c) return '#000000';
+  return `#${c.r.toString(16).padStart(2, '0')}${c.g.toString(16).padStart(2, '0')}${c.b.toString(16).padStart(2, '0')}`;
+}
+
+function buildSystemTheme() {
+  const bg = getCSSVariable('--bg-base') || '#0F0D10';
+  const fg = getCSSVariable('--text-primary') || '#EAE0E2';
+  const accent = getCSSVariable('--accent-light') || '#FF1A5E';
+  const accentDim = getCSSVariable('--accent-dim') || '#6B2033';
+  const success = '#00E676';
+  const warning = '#FFD740';
+  const error = getCSSVariable('--accent-bright') || '#FF1744';
+  const bgSurface = getCSSVariable('--bg-surface') || bg;
+  const bgElevated = getCSSVariable('--bg-elevated') || bgSurface;
+  const textSecondary = getCSSVariable('--text-secondary') || fg;
+  const textTertiary = getCSSVariable('--text-tertiary') || textSecondary;
+  
+  return {
+    background: toRgbString(bg),
+    foreground: toRgbString(fg),
+    cursor: toRgbString(accent),
+    cursorAccent: toRgbString(bg),
+    selectionBackground: `${toRgbString(accentDim)}44`,
+    selectionForeground: '#FFFFFF',
+    black: toRgbString(bgElevated),
+    red: toRgbString(error),
+    green: toRgbString(success),
+    yellow: toRgbString(warning),
+    blue: toRgbString(getCSSVariable('--accent') || '#448AFF'),
+    magenta: toRgbString(accent),
+    cyan: '#00BCD4',
+    white: toRgbString(fg),
+    brightBlack: toRgbString(bgSurface),
+    brightRed: toRgbString(accent),
+    brightGreen: toRgbString(success),
+    brightYellow: toRgbString(warning),
+    brightBlue: toRgbString(getCSSVariable('--accent-muted') || '#82B1FF'),
+    brightMagenta: toRgbString(getCSSVariable('--accent-soft') || '#FF80AB'),
+    brightCyan: '#84FFFF',
+    brightWhite: '#FFFFFF',
+  };
+}
+
 const THEMES = {
+  system: buildSystemTheme(),
   default: {
     background: '#0A0A0C', foreground: '#EAE0E2', cursor: '#FF0033',
     cursorAccent: '#0A0A0C', selectionBackground: '#FF003344', selectionForeground: '#ffffff',
@@ -125,11 +189,14 @@ const THEMES = {
 }
 
 function getTheme(themeName) {
-  return THEMES[themeName] || THEMES.default
+  if (themeName === 'system' || themeName === 'default') {
+    return buildSystemTheme()
+  }
+  return THEMES[themeName] || buildSystemTheme()
 }
 
 function createTerminal(container, settings = {}) {
-  const theme = getTheme(settings.theme || 'default')
+  const theme = getTheme(settings.theme || 'system')
   const term = new XTerm({
     cursorBlink: true,
     fontSize: settings.fontSize || 12,
@@ -182,9 +249,20 @@ function connectWebSocket(term, fitAddon, initPayload, onStateChange, onFirstMes
   ws.addEventListener('open', () => {
     ws.send(JSON.stringify(initPayload))
     const dims = fitAddon.proposeDimensions()
-    if (dims) {
-      ws.send(JSON.stringify({ type: 'resize', rows: dims.rows, cols: dims.cols }))
-    }
+    // Envoyer resize avec dimensions minimales garanties (24x80)
+    const rows = dims?.rows || 24
+    const cols = dims?.cols || 80
+    ws.send(JSON.stringify({ type: 'resize', rows, cols }))
+    // Forcer un fit après l'ouverture
+    setTimeout(() => {
+      try {
+        fitAddon.fit()
+        const newDims = fitAddon.proposeDimensions()
+        if (newDims && newDims.rows > 0 && newDims.cols > 0) {
+          ws.send(JSON.stringify({ type: 'resize', rows: newDims.rows, cols: newDims.cols }))
+        }
+      } catch (e) { console.warn('[Shell] fit failed:', e) }
+    }, 50)
     if (onStateChange) onStateChange(true)
   })
 
@@ -229,29 +307,44 @@ export default function Shell({ api }) {
   const { t } = useI18n()
   const tabsRef = useRef({})
   const nextIdRef = useRef(1)
-  const settingsRef = useRef({ fontSize: 12, fontFamily: "'JetBrains Mono', 'Fira Code', monospace", theme: 'default' })
+  const settingsRef = useRef({ fontSize: 12, fontFamily: "'JetBrains Mono', 'Fira Code', monospace", theme: 'system' })
   const pendingCommandsRef = useRef({})
 
-  const savedTabs = (() => {
+  const [tabs, setTabs] = useState(() => {
     try {
       const raw = localStorage.getItem(TABS_STORAGE_KEY)
       if (raw) {
         const parsed = JSON.parse(raw)
-        if (Array.isArray(parsed) && parsed.length > 0) {
-          return parsed.map(t => ({ ...t, connected: false }))
+        if (Array.isArray(parsed) && parsed.length > 0 && parsed.length <= MAX_TABS) {
+          return parsed.map((t, i) => ({ 
+            id: t.id || i + 1, 
+            name: t.name || `Tab ${i + 1}`, 
+            type: t.type || 'local', 
+            shell: t.shell || '',
+            host: t.host,
+            port: t.port,
+            user: t.user,
+            key_path: t.key_path,
+            connected: false 
+          }))
         }
       }
-    } catch {}
-    return null
-  })()
-
-  const [tabs, setTabs] = useState(savedTabs || [
-    { id: 1, name: 'Local Shell', type: 'local', shell: '', connected: false },
-  ])
-  const [activeTab, setActiveTab] = useState(() => {
-    if (savedTabs) {
-      return savedTabs[0]?.id || 1
+    } catch (e) { 
+      console.warn('[Shell] Failed to parse saved tabs:', e)
+      localStorage.removeItem(TABS_STORAGE_KEY)
     }
+    return [
+      { id: 1, name: 'Local Shell', type: 'local', shell: '', connected: false },
+    ]
+  })
+  const [activeTab, setActiveTab] = useState(() => {
+    try {
+      const raw = localStorage.getItem(TABS_STORAGE_KEY)
+      if (raw) {
+        const parsed = JSON.parse(raw)
+        if (Array.isArray(parsed) && parsed.length > 0) return parsed[0]?.id || 1
+      }
+    } catch {}
     return 1
   })
   const activeTabRef = useRef(activeTab)
@@ -265,7 +358,7 @@ export default function Shell({ api }) {
   const [terminalSettings, setTerminalSettings] = useState({
     fontSize: 12,
     fontFamily: "'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', 'Menlo', monospace",
-    theme: 'default',
+    theme: 'system',
   })
 
   useEffect(() => { settingsRef.current = terminalSettings }, [terminalSettings])
@@ -330,7 +423,7 @@ export default function Shell({ api }) {
         setTerminalSettings({
           fontSize: d.terminal.font_size || 12,
           fontFamily: d.terminal.font_family || "'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', 'Menlo', monospace",
-          theme: d.terminal.theme || 'default',
+          theme: d.terminal.theme || 'system',
         })
       }
     }).catch(() => {})
@@ -482,36 +575,60 @@ export default function Shell({ api }) {
     let cancelled = false
     const pending = []
 
+    // Forcer le layout à se calculer
+    const forceLayout = () => {
+      const el = document.querySelector('.shell-terminal-col')
+      if (el) {
+        el.style.height = ''
+        el.style.minHeight = ''
+        // Forcer reflow
+        void el.offsetHeight
+      }
+    }
+
     const tryInitTab = (tab, attempt) => {
       if (cancelled) return
-      const shellCol = document.querySelector('.shell-terminal-col')
-      if (!shellCol || shellCol.offsetParent === null) {
-        pending.push(setTimeout(() => tryInitTab(tab, attempt + 1), 200))
+      if (attempt > 20) {
+        console.warn(`[Shell] max attempts reached for tab ${tab.id}`)
         return
       }
+      
+      forceLayout()
+      const shellCol = document.querySelector('.shell-terminal-col')
+      if (!shellCol) {
+        pending.push(setTimeout(() => tryInitTab(tab, attempt + 1), 150))
+        return
+      }
+      
       const container = document.getElementById(`terminal-${tab.id}`)
       if (!container) {
         pending.push(setTimeout(() => tryInitTab(tab, attempt + 1), 100))
         return
       }
-      if (container.offsetHeight === 0) {
+      
+      const rect = container.getBoundingClientRect()
+      if (rect.height < 10 || rect.width < 10) {
         pending.push(setTimeout(() => tryInitTab(tab, attempt + 1), 100))
         return
       }
+      
       if (!tabsRef.current[tab.id]) {
         initTerminal(tab.id, tab)
       }
-      requestAnimationFrame(() => {
-        if (cancelled) return
-        const entry = tabsRef.current[tab.id]
-        if (entry) {
-          entry.fitAddon.fit()
-          setTimeout(() => { if (!cancelled) entry.fitAddon.fit() }, 100)
-        }
+      
+      // Multiple fit attempts avec délais croissants
+      const fitAttempts = [0, 50, 100, 200, 400]
+      fitAttempts.forEach(delay => {
+        setTimeout(() => {
+          if (cancelled) return
+          const entry = tabsRef.current[tab.id]
+          if (entry && entry.fitAddon) {
+            try {
+              entry.fitAddon.fit()
+            } catch (e) { console.warn(`[Shell] fit attempt ${delay}ms failed:`, e) }
+          }
+        }, delay)
       })
-      if (!tabsRef.current[tab.id]) {
-        tryInitTab(tab, 0)
-      }
     }
 
     const wrapper = document.querySelector('.shell-layout')?.parentElement
@@ -650,6 +767,19 @@ export default function Shell({ api }) {
       }
       return next
     })
+
+    // Redimensionner le nouveau tab actif
+    setTimeout(() => {
+      const newActiveTabId = next.length > 0 ? next[next.length - 1].id : null
+      if (newActiveTabId) {
+        const entry = tabsRef.current[newActiveTabId]
+        if (entry && entry.fitAddon) {
+          try {
+            entry.fitAddon.fit()
+          } catch (e) { console.warn('[Shell] fit after close failed:', e) }
+        }
+      }
+    }, 100)
   }
 
   const startRename = (tabId, e) => {

web/src/styles/global.css

@@ -1058,3 +1058,76 @@ input::placeholder { color: var(--text-disabled); }
   word-break: break-word;
   background: var(--bg);
 }
+
+/* === XTerm Custom Styling === */
+/* Styles for xterm.js integrated with Muyue theme */
+.shell-xterm-instance .xterm {
+  padding: 4px 8px;
+}
+
+.shell-xterm-instance .xterm-viewport {
+  background-color: var(--bg-base) !important;
+}
+
+.shell-xterm-instance .xterm-screen {
+  background-color: var(--bg-base);
+}
+
+/* Scrollbar styling for xterm */
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar {
+  width: 8px;
+}
+
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar-track {
+  background: var(--bg-surface);
+}
+
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar-thumb {
+  background: var(--accent-dim);
+  border-radius: 4px;
+}
+
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar-thumb:hover {
+  background: var(--accent-dark);
+}
+
+/* Selection styling */
+.shell-xterm-instance .xterm-selection {
+  background: var(--accent-dim) !important;
+}
+
+/* Focus ring styling */
+.shell-xterm-instance .xterm:focus .xterm-helper-text-container {
+  box-shadow: none;
+}
+
+/* Ensure consistent font rendering */
+.shell-xterm-instance .xterm .xterm-char-measure-element {
+  font-family: var(--font-mono) !important;
+}
+
+/* Bell animation styling */
+.shell-xterm-instance .xterm-bell {
+  animation: xterm-bell-flash 0.3s ease-out;
+}
+
+@keyframes xterm-bell-flash {
+  0% { opacity: 1; }
+  50% { opacity: 0.5; }
+  100% { opacity: 0; }
+}
+
+/* Cursor styling */
+.shell-xterm-instance .xterm-cursor {
+  outline: none !important;
+}
+
+/* Link styling for web links addon */
+.shell-xterm-instance .xterm-link {
+  color: var(--accent-light) !important;
+  text-decoration: underline;
+}
+
+.shell-xterm-instance .xterm-link:hover {
+  color: var(--accent-muted) !important;
+}