Rename Asterisk container from easy-asterisk to asterisk

New installs now name the container "asterisk", matching every other
service's container_name == service name convention, instead of
reusing the vendored easy-asterisk CLI tool's own name (which stays
/usr/local/bin/easy-asterisk inside the container, unrelated and
unchanged).

An existing "easy-asterisk" install is never silently renamed: every
place that resolves the container name (_asterisk_resolve_layout in
asterisk.sh, plus the duplicated copies in security-dashboard.sh,
sms-inbound.sh, pstn-trunk.sh, and tools/pstn-test-check.sh's docker ps
detection) now reads it from the box's own docker-compose.yml instead
of assuming it, falling back to "asterisk" only when there's no
existing install to read. Migrating a live box to the new name is a
one-time manual action (edit docker-compose.yml's container_name for
Asterisk and its coturn sidecar, docker compose down + up -d); every
sibling service then picks it up automatically on its next run.

The DigitalOcean-droplet layout (asterisk-digital-ocean directory,
easy-asterisk-do container) is untouched by this - that naming stays
exactly as documented for pre-merge droplet installs.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SpKTLpwAgZNooTacWeQLuc

tools/pstn-test-check.sh

@@ -56,9 +56,13 @@ fi
 # ── Container + directory detection ─────────────────────────────────────────
 section "Detecting install"
 
-CONTAINER="$(docker ps --format '{{.Names}}' 2>/dev/null | grep -m1 -E '^easy-asterisk(-do)?$' || true)"
+# "asterisk" is this repo's current container name; "easy-asterisk" is what
+# an install kept from before that rename (never silently renamed under a
+# running deployment); "easy-asterisk-do"/"asterisk-do" cover a DigitalOcean
+# droplet install, old or new naming. Whichever is actually running wins.
+CONTAINER="$(docker ps --format '{{.Names}}' 2>/dev/null | grep -m1 -E '^(easy-)?asterisk(-do)?$' || true)"
 if [ -z "$CONTAINER" ]; then
-    fail "No running easy-asterisk / easy-asterisk-do container found — is asterisk installed and started?"
+    fail "No running asterisk / easy-asterisk / *-do container found — is asterisk installed and started?"
     echo ""
     echo "  $PASS passed, $WARN warnings, $FAIL failed. Stopping — nothing else can be checked without a running container."
     exit 1
@@ -196,8 +200,7 @@ if [ -z "$TURN_SERVER" ]; then
     warn "Add it via: sudo ./setup.sh asterisk (update mode)"
 else
     if grep -q '^  coturn:' "$EA_DIR/docker-compose.yml" 2>/dev/null; then
-        COTURN_CONTAINER="easy-asterisk-coturn"
-        [[ "$CONTAINER" == *-do ]] && COTURN_CONTAINER="easy-asterisk-do-coturn"
+        COTURN_CONTAINER="${CONTAINER}-coturn"
         ok "Using an embedded, per-Asterisk coturn ($COTURN_CONTAINER); tested separately below."
     else
         COTURN_CONTAINER="coturn"