refactor(compose): rename docker network archive-net to archiv-net

The docker network was the only `archive-*` identifier in either
compose file; everything else (user, db, bucket, service account,
project name) uses the `archiv-*` spelling. Reviewers' eyes stuttered
on it on the prod compose review (round 2 of PR #499 — Markus and
Tobi). Renamed in both prod and dev compose for consistency and
updated the single doc reference to the dev-project-prefixed
network name.

Operational note: applying this change to a running stack will
recreate the network on the next `docker compose up`; containers
restart, named volumes are unaffected.

`docker compose config --quiet` passes for both compose files and
for the staging profile. Sweep confirms zero `archive-net`
references remain in the tree.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docker-compose.prod.yml

@@ -28,7 +28,7 @@
 #   APP_MAIL_FROM               sender address (e.g. noreply@raddatz.cloud)
 
 networks:
-  archive-net:
+  archiv-net:
     driver: bridge
 
 volumes:
@@ -48,7 +48,7 @@ services:
     volumes:
       - postgres-data:/var/lib/postgresql/data
     networks:
-      - archive-net
+      - archiv-net
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U archiv -d archiv"]
       interval: 10s
@@ -67,7 +67,7 @@ services:
     volumes:
       - minio-data:/data
     networks:
-      - archive-net
+      - archiv-net
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
       interval: 30s
@@ -85,7 +85,7 @@ services:
       minio:
         condition: service_healthy
     networks:
-      - archive-net
+      - archiv-net
     environment:
       MINIO_PASSWORD: ${MINIO_PASSWORD}
       MINIO_APP_PASSWORD: ${MINIO_APP_PASSWORD}
@@ -101,7 +101,7 @@ services:
     restart: unless-stopped
     profiles: ["staging"]
     networks:
-      - archive-net
+      - archiv-net
     healthcheck:
       # TCP-port open check via BusyBox `nc`. The previous wget-based probe
       # introduced a non-obvious binary dependency on the mailpit image; a
@@ -138,7 +138,7 @@ services:
       # must NOT be reachable here. Do not widen to `*`.
       ALLOWED_PDF_HOSTS: "minio"
     networks:
-      - archive-net
+      - archiv-net
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:8000/health"]
       interval: 10s
@@ -186,7 +186,7 @@ services:
       SPRING_MAIL_PROPERTIES_MAIL_SMTP_AUTH: ${MAIL_SMTP_AUTH:-true}
       SPRING_MAIL_PROPERTIES_MAIL_SMTP_STARTTLS_ENABLE: ${MAIL_STARTTLS_ENABLE:-true}
     networks:
-      - archive-net
+      - archiv-net
     healthcheck:
       test: ["CMD-SHELL", "wget -qO- http://localhost:8080/actuator/health | grep -q UP || exit 1"]
       interval: 15s
@@ -210,7 +210,7 @@ services:
       API_INTERNAL_URL: http://backend:8080
       ORIGIN: https://${APP_DOMAIN}
     networks:
-      - archive-net
+      - archiv-net
     healthcheck:
       test: ["CMD-SHELL", "wget -qO- http://localhost:3000/login >/dev/null 2>&1 || exit 1"]
       interval: 15s