chore(archive): preserve KNELServerBuild remainder + layout notes [#474]

Archive the non-ported remainder of the legacy KNELServerBuild repo
under archive/KNELServerBuild/ with its original structure intact,
completing the legacy repo merge for everything except the live
LibreNMS patterns (ported in the previous commit).

Exclusions:
- .git history (superseded; legacy repo remains at its original path)
- ported files (Agents/librenms, Modules/OAM/oam-librenms.sh,
  ConfigFiles/SNMP/snmp-sudo.conf)
- vendored KNELShellFramework tree (byte-identical duplicate of the
  copy already vendored at vendor/ in this repo)
- SSH authorized-keys files (live access-control material; carrying
  them in an archive invites drift — key policy lives elsewhere)

The whole tree is skip-listed in tests/shellcheck.sh (archived legacy
code, not maintained — same standing as vendor/); check-rules.sh
already prunes archive/. Rule 9 (conflict markers) now also excludes
archive/ staged files: preserved-verbatim legacy scripts contain
decorative "====" banners that false-positive as conflict markers
(same archive exclusion precedent as rule 11).

AGENTS.md: note archive/KNELServerBuild and oam/librenms-agent in the
Repository Layout, and fix the stale KNELIAC path to
/home/reachableceo/projects/KNEL/KNELIAC.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

archive/KNELServerBuild/ProjectCode/ConfigFiles/AuditD/auditd.conf

@@ -0,0 +1,46 @@
+#
+# Known Element Enterprises Customized Config File
+# auditd
+# Initial version 2025-06-27 
+#
+
+local_events = yes
+write_logs = yes
+log_file = /var/log/audit/audit.log
+log_group = adm
+log_format = ENRICHED
+flush = INCREMENTAL_ASYNC
+freq = 50
+max_log_file = 8
+num_logs = 5
+priority_boost = 4
+name_format = NONE
+max_log_file_action = keep_logs
+space_left = 75
+space_left_action = email
+action_mail_acct = root
+
+admin_space_left_action = halt
+disk_full_action = SUSPEND
+disk_error_action = SUSPEND
+admin_space_left = 50
+
+verify_email = yes
+use_libwrap = yes
+tcp_listen_queue = 5
+tcp_max_per_addr = 1
+tcp_client_max_idle = 0
+transport = TCP
+distribute_network = no
+q_depth = 2000
+overflow_action = SYSLOG
+max_restarts = 10
+plugin_dir = /etc/audit/plugins.d
+end_of_event_timeout = 2
+##tcp_client_ports = 1024-65535
+##tcp_listen_port = 60
+
+##krb5_key_file = /etc/audit/audit.key
+krb5_principal = auditd
+
+##name = mydomain