refactor(ssh): consolidate real_ssh into ssh, remove duplication

real_ssh was a separate service name pointing to the same template and
behaviour as ssh. Merged them: ssh is now the single real-OpenSSH service.

- Rename templates/real_ssh/ → templates/ssh/
- Remove decnet/services/real_ssh.py
- Deaddeck archetype updated: services=["ssh"]
- Merge test_real_ssh.py into test_ssh.py (includes deaddeck + logging tests)
- Drop decnet.services.real_ssh from test_build module list

.claude/settings.local.json

@@ -17,7 +17,11 @@
       "Bash(xxd)",
       "Bash(curl -s http://192.168.1.200:2375/version)",
       "Bash(python3 -m json.tool)",
-      "Bash(curl -s http://192.168.1.200:9200/)"
+      "Bash(curl -s http://192.168.1.200:9200/)",
+      "Bash(docker image:*)",
+      "Read(//home/anti/Tools/cowrie/src/cowrie/data/txtcmds/**)",
+      "Read(//home/anti/Tools/cowrie/src/cowrie/data/txtcmds/bin/**)",
+      "mcp__plugin_context-mode_context-mode__ctx_index"
     ]
   }
 }