flip bee to full-node mode for PSS

Light nodes can dial the network but PSS delivery requires nodes to
participate as forwarders. Job 0x7355…99fe stayed Pending on-chain
because the provider never received the PSS notify.

Trade-off: full nodes consume more disk + bandwidth and need a funded
chequebook to swap with peers (currently 0 — may need a top-up).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

hostinger/prod-stack.yaml

@@ -205,7 +205,7 @@ services:
       BEE_API_ADDR: ":1633"
       BEE_P2P_ADDR: ":1634"
       BEE_VERBOSITY: "info"
-      BEE_FULL_NODE: "false"
+      BEE_FULL_NODE: "true"
       BEE_SWAP_ENABLE: "true"
       BEE_NETWORK_ID: "1"
       BEE_WELCOME_MESSAGE: "t4t-gateway"