asterisk: 24.0.0-rc2 image built from source with static config

Adds stub configs and noloads so a clean boot logs no ERROR lines,
ships stock indications.conf, seeds default MOH from the entrypoint.
Spec 01 synced with the real files.

Task: M0-T5

asterisk/conf/cdr.conf

@@ -0,0 +1,5 @@
+[general]
+enable = yes
+unanswered = yes
+congestion = yes
+endbeforehexten = yes