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

templates/cowrie/honeyfs/home/admin/.aws/credentials

@@ -0,0 +1,14 @@
+[default]
+aws_access_key_id = AKIAIOSFODNN7EXAMPLE
+aws_secret_access_key = wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
+region = us-east-1
+
+[production]
+aws_access_key_id = AKIAI44QH8DHBEXAMPLE
+aws_secret_access_key = je7MtGbClwBF/2Zp9Utk/h3yCo8nvbEXAMPLEKEY
+region = us-east-1
+
+[backup-role]
+aws_access_key_id = AKIAIOSFODNN7BACKUP1
+aws_secret_access_key = 9drTJvcXLB89EXAMPLEKEY/bPxRfiCYBACKUPKEY
+region = eu-west-2