fix: resolve port collisions for polygon-amoy and zircuit-garfield

- polygon-amoy: reassigned from port 12188 (collision with hashkeychain-mainnet)
  to 12190 via salt+2 in generate_ports()
- zircuit-garfield/testnet: fix empty --networkid= (was {{ chain_id }},
  now {{ chainid }})

Co-Authored-By: Claude Agent <claude@stakesquid.eu>

polygon/erigon3/polygon-amoy-erigon3-minimal-trace.yml

@@ -47,12 +47,12 @@ services:
       memlock: -1        # Disable memory locking limits (for in-memory DBs like MDBX)
     user: root
     ports:
-      - 10307:10307
-      - 10307:10307/udp
-      - 30307:30307
-      - 30307:30307/udp
-      - 35307:35307
-      - 35307:35307/udp
+      - 10309:10309
+      - 10309:10309/udp
+      - 30309:30309
+      - 30309:30309/udp
+      - 35309:35309
+      - 35309:35309/udp
     expose:
       - 8545
     entrypoint: [erigon]
@@ -72,10 +72,10 @@ services:
       - --metrics.addr=0.0.0.0
       - --metrics.port=6060
       - --nat=extip:${IP}
-      - --p2p.allowed-ports=30307
-      - --p2p.allowed-ports=35307
+      - --p2p.allowed-ports=30309
+      - --p2p.allowed-ports=35309
       - --persist.receipts=false
-      - --port=10307
+      - --port=10309
       - --prune.mode=minimal
       - --rpc.evmtimeout=${POLYGON_AMOY_ERIGON3_MINIMAL_TRACE_EVMTIMEOUT:-5m0s}
       - --rpc.gascap=6000000000
@@ -83,7 +83,7 @@ services:
       - --rpc.overlay.replayblocktimeout=${POLYGON_AMOY_ERIGON3_MINIMAL_TRACE_REPLAYBLOCKTIMEOUT:-10s}
       - --rpc.returndata.limit=10000000
       - --torrent.download.rate=${POLYGON_AMOY_ERIGON3_MINIMAL_TRACE_MAX_DOWNLOAD_RATE:-1000mb}
-      - --torrent.port=25307
+      - --torrent.port=25309
       - --ws
       - --ws.port=8545
     restart: unless-stopped