fix(terminal): use absolute positioning for content panels

height:100% on .content>div fails because .content uses flex:1
without explicit height. Switch to position:absolute;inset:0 which
correctly fills the content area and gives xterm proper container
dimensions for fitAddon.

💘 Generated with Crush

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

web/src/components/App.jsx

@@ -92,6 +92,8 @@ export default function App() {
       { keys: `${layout.keys.shift}+${layout.keys.enter}`, desc: t('statusbar.newLine') },
     ],
     shell: [
+      { keys: `${layout.keys.ctrl}+${layout.keys.shift}+C`, desc: t('statusbar.copy') },
+      { keys: `${layout.keys.ctrl}+${layout.keys.shift}+V`, desc: t('statusbar.paste') },
       { keys: layout.keys.enter, desc: t('statusbar.runCommand') },
       { keys: `${layout.keys.up}/${layout.keys.down}`, desc: t('statusbar.commandHistory') },
     ],

web/src/components/Shell.jsx

@@ -143,6 +143,32 @@ function createTerminal(container, settings = {}) {
   const webLinksAddon = new WebLinksAddon()
   term.loadAddon(fitAddon)
   term.loadAddon(webLinksAddon)
+
+  term.attachCustomKeyEventHandler((e) => {
+    if (e.type !== 'keydown') return true
+    const ctrl = e.ctrlKey || e.metaKey
+    const shift = e.shiftKey
+
+    if (ctrl && shift && e.key === 'C') {
+      e.preventDefault()
+      e.stopPropagation()
+      const selection = term.getSelection()
+      if (selection) navigator.clipboard.writeText(selection)
+      return false
+    }
+
+    if (ctrl && shift && e.key === 'V') {
+      e.preventDefault()
+      e.stopPropagation()
+      navigator.clipboard.readText().then(text => {
+        if (text) term.paste(text)
+      }).catch(() => {})
+      return false
+    }
+
+    return true
+  })
+
   term.open(container)
   fitAddon.fit()
 
@@ -693,7 +719,7 @@ export default function Shell({ api }) {
 
     if (!fromEvent) {
       setAiInput('')
-      focusAiTerminal()
+      setTimeout(() => focusAiTerminal(), 0)
     }
 
     if (trimmed === '/clear') {
@@ -937,7 +963,7 @@ export default function Shell({ api }) {
           <input
             value={aiInput}
             onChange={e => setAiInput(e.target.value)}
-            onKeyDown={e => e.key === 'Enter' && handleAiSend()}
+            onKeyDown={e => { if (e.key === 'Enter') { e.preventDefault(); e.stopPropagation(); handleAiSend() } }}
             placeholder={aiAtLimit ? '/clear pour continuer' : t('shell.askAi')}
             disabled={aiAtLimit && aiInput !== '/clear'}
           />

web/src/i18n/en.js

@@ -16,6 +16,8 @@ const en = {
     switchWindow: 'Switch window',
     sendMessage: 'Send message',
     newLine: 'New line',
+    copy: 'Copy',
+    paste: 'Paste',
     runCommand: 'Run command',
     commandHistory: 'Command history',
   },

web/src/i18n/fr.js

@@ -16,6 +16,8 @@ const fr = {
     switchWindow: 'Changer de fen\u00eatre',
     sendMessage: 'Envoyer le message',
     newLine: 'Nouvelle ligne',
+    copy: 'Copier',
+    paste: 'Coller',
     runCommand: 'Ex\u00e9cuter',
     commandHistory: 'Historique',
   },

web/src/styles/global.css

@@ -155,7 +155,7 @@ input::placeholder { color: var(--text-disabled); }
 .header-clock { font-family: var(--font-mono); font-size: 12px; color: var(--accent); font-weight: 600; }
 
 .content { flex: 1; overflow: hidden; position: relative; }
-.content > div { height: 100%; }
+.content > div { position: absolute; inset: 0; overflow: hidden; }
 .tab-hidden { display: none; }
 
 .statusbar {