test: add deferred phase 8 adversarial matrix

e2e/archive-2/compose.yaml

@@ -53,7 +53,7 @@ services:
       qbittorrent:
         condition: service_healthy
     volumes:
-      - ./config/client.toml:/etc/archive-control/client.toml:ro
+      - "${ARCHIVE_2_CLIENT_CONFIG:-./config/client.toml}:/etc/archive-control/client.toml:ro"
       - ./secrets:/run/secrets:ro
       - ./runtime/client-state:/var/lib/archive-control
       - ./runtime/client-backups:/var/backups/archive-control
@@ -68,4 +68,3 @@ networks:
   archive-control-e2e:
     external: true
     name: archive-control-e2e
-

e2e/archive-2/config/client-exhausted.toml

@@ -0,0 +1,35 @@
+client_id = "archive-2"
+display_name = "E2E Archive 2 (exhausted reserve)"
+role = "archive"
+control_endpoint = "ws://control:8765/archive_control"
+shared_token_file = "/run/secrets/archive_control_token"
+state_db = "/var/lib/archive-control/client.db"
+backup_dir = "/var/backups/archive-control"
+
+[connection]
+registration_timeout = "5s"
+heartbeat_interval = "2s"
+offline_timeout = "10s"
+reconnect_initial = "1s"
+reconnect_max = "5s"
+reconnect_reset_after = "10s"
+reconnect_jitter = false
+
+[jobs]
+# Deliberately impossible reserve used only by the Phase 8 disk-exhaustion
+# scenario. This exercises the real capacity guard without filling a volume.
+free_space_reserve_bytes = 9223372036854775807
+
+[qbittorrent]
+endpoint = "http://qb-archive-2:8080"
+username = "admin"
+password_file = "/run/secrets/qb_password"
+api_root = "/downloads"
+local_root = "/data/qb"
+
+[syncthing]
+endpoint = "http://syncthing-archive-2:8384"
+api_key_file = "/run/secrets/syncthing_api_key"
+api_root = "/sync"
+local_root = "/data/sync"
+advertised_addresses = ["tcp://syncthing-archive-2:22000"]