avalanche C-chain configs: debug-api-enabled true (mainnet pruned/archive/firewood, fuji pruned/archive) so the advertised dshackle debug group is actually served (dRPC routed 110 debug_trace* calls/day into method-not-available)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KjqejYycVyVvrxV9aTDhgX

avalanche/mainnet/firewood/C/config.json

@@ -8,7 +8,7 @@
     "eth-api-enabled": true,
     "personal-api-enabled": false,
     "tx-pool-api-enabled": false,
-    "debug-api-enabled": false,
+    "debug-api-enabled": true,
     "web3-api-enabled": true,
     "local-txs-enabled": false,
     "pruning-enabled": false,