v1.8.70: fix SSH key generation — use ssh-keygen instead of broken paramiko

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

core/claude_setup.py

@@ -113,22 +113,23 @@ def generate_ssh_key() -> str:
 
     os.makedirs(os.path.dirname(SSH_KEY_PATH), exist_ok=True)
 
+    import subprocess
     try:
-        import paramiko
-    except ImportError:
-        msg = "ERROR: paramiko is not installed — cannot generate SSH key"
+        subprocess.run(
+            ["ssh-keygen", "-t", "ed25519", "-f", SSH_KEY_PATH,
+             "-N", "", "-C", "server-manager"],
+            check=True, capture_output=True, timeout=15
+        )
+        log.info(f"SSH key generated: {SSH_KEY_PATH}")
+        return f"Key generated: {SSH_KEY_PATH}"
+    except FileNotFoundError:
+        msg = "ERROR: ssh-keygen not found — install openssh-client"
+        log.error(msg)
+        return msg
+    except subprocess.CalledProcessError as e:
+        msg = f"ERROR: ssh-keygen failed: {e.stderr.decode().strip()}"
         log.error(msg)
         return msg
-
-    key = paramiko.Ed25519Key.generate()
-    key.write_private_key_file(SSH_KEY_PATH)
-
-    pub_key = f"ssh-ed25519 {key.get_base64()} server-manager"
-    with open(SSH_KEY_PATH + ".pub", "w") as f:
-        f.write(pub_key + "\n")
-
-    log.info(f"SSH key generated: {SSH_KEY_PATH}")
-    return f"Key generated: {SSH_KEY_PATH}"
 
 
 def install_global_claude_md() -> str: