feat: Shell-Kommando-Erkennung im CLI

pwd, ls, git, curl, pip etc. werden direkt lokal ausgeführt,
nicht ans LLM geschickt. Erkennung wie in VSCode-Extension
(shellFirstWords-Liste, kein ?/. am Ende = nat. Sprache).

cli/crowdcode.js

@@ -519,6 +519,34 @@ async function main() {
         }
         if (!trimmed) continue;
 
+        // ─── Shell-Kommando-Erkennung (direkt ausführen, nicht ans LLM) ─────
+        const SHELL_COMMANDS = [
+            'pwd', 'ls', 'll', 'cd', 'git', 'npm', 'npx', 'node', 'python', 'python3',
+            'pip', 'curl', 'wget', 'docker', 'docker-compose', 'ps', 'top', 'htop',
+            'df', 'du', 'whoami', 'env', 'which', 'whereis', 'ssh', 'scp', 'make',
+            'cargo', 'go', 'rustc', 'date', 'uptime', 'uname', 'hostname', 'id', 'free',
+            'netstat', 'ss', 'ip', 'ping', 'traceroute', 'nslookup', 'dig', 'tree',
+            'wc', 'sort', 'uniq', 'cut', 'awk', 'sed', 'tr', 'diff', 'cmp', 'stat',
+            'file', 'type', 'printenv', 'history', 'screen', 'tmux', 'bash', 'sh',
+            'zsh', 'source', '.',
+        ];
+        const firstWord = trimmed.split(/\s+/)[0];
+        const isShellCmd = SHELL_COMMANDS.includes(firstWord) && !/[?!.]$/.test(trimmed);
+        if (isShellCmd) {
+            const lines = trimmed.split('\n').filter(l => l.trim());
+            process.stdout.write(`\n${C.dim}⚡ ${trimmed}${C.reset}\n`);
+            for (const cmd of lines) {
+                try {
+                    const out = execSync(cmd.trim(), { cwd: WORKSPACE, timeout: 10000, encoding: 'utf8', maxBuffer: 1024 * 512 });
+                    console.log(`${C.grey}${out || '(keine Ausgabe)'}${C.reset}`);
+                } catch (e) {
+                    console.log(`${C.red}${e.stderr || e.message}${C.reset}`);
+                }
+            }
+            console.log('');
+            continue;
+        }
+
         // @mentions auflösen
         const enhanced = await resolveMentions(trimmed);
         history.push({ role: 'user', content: enhanced });