Default image tags to :dev (per-branch=per-env model)

compose.dev.yaml

@@ -3,7 +3,7 @@
 # Deployed via Komodo Stack-from-Git:
 #   Repository: git.dev.trmtracking.org/trm/deploy
 #   Compose path: compose.dev.yaml
-#   Branch: main
+#   Branch: dev
 #
 # Images are built and pushed by each service's own Gitea Actions workflow
 # (see each repo's .gitea/workflows/build.yml). This file references the
@@ -51,7 +51,7 @@ services:
   # Built by git.dev.trmtracking.org/trm/tcp-ingestion's Gitea workflow.
   # -------------------------------------------------------------------
   tcp-ingestion:
-    image: git.dev.trmtracking.org/trm/tcp-ingestion:${TCP_INGESTION_TAG:-main}
+    image: git.dev.trmtracking.org/trm/tcp-ingestion:${TCP_INGESTION_TAG:-dev}
     depends_on:
       redis:
         condition: service_healthy
@@ -111,7 +111,7 @@ services:
   # ready in advance of the live-broadcast feature landing.
   # -------------------------------------------------------------------
   processor:
-    image: git.dev.trmtracking.org/trm/processor:${PROCESSOR_TAG:-main}
+    image: git.dev.trmtracking.org/trm/processor:${PROCESSOR_TAG:-dev}
     depends_on:
       redis:
         condition: service_healthy
@@ -174,7 +174,7 @@ services:
   # WEBSOCKETS_REST_PATH below; no Traefik rewrite is needed.
   # -------------------------------------------------------------------
   directus:
-    image: git.dev.trmtracking.org/trm/directus:${DIRECTUS_TAG:-main}
+    image: git.dev.trmtracking.org/trm/directus:${DIRECTUS_TAG:-dev}
     depends_on:
       postgres:
         condition: service_healthy
@@ -294,7 +294,7 @@ services:
   # that only flow within one origin.
   # -------------------------------------------------------------------
   spa:
-    image: git.dev.trmtracking.org/trm/spa:${SPA_TAG:-main}
+    image: git.dev.trmtracking.org/trm/spa:${SPA_TAG:-dev}
     expose:
       - '80'
     volumes: