fix: update config examples

Author: neithanmo

crates/config/default_values.toml

@@ -34,4 +34,6 @@ max_receipts_per_request = 10000
 0xDD6a6f76eb36B873C1C184e8b9b9e762FE216490 = "https://tap-aggregator-arbitrum-one.graphops.xyz"
 
 [horizon]
-enabled = true
+enabled = false
+# Required if horizon.enabled = true
+# subgraph_service_address = "0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9";

crates/config/maximal-config-example.toml

@@ -180,4 +180,6 @@ hardhat = "100"
 #   - If Horizon contracts detected: Hybrid migration mode (new V2 receipts only, process existing V1 receipts)
 #   - If Horizon contracts not detected: Remain in legacy mode (V1 receipts only)
 # When disabled: Pure legacy mode, no Horizon detection performed
-enabled = true
+enabled = false
+# Required if horizon.enabled = true
+# subgraph_service_address = "0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9";

crates/config/minimal-config-example.toml

@@ -72,4 +72,6 @@ receipts_verifier_address = "0x2222222222222222222222222222222222222222"
 #   - If Horizon contracts detected: Hybrid migration mode (new V2 receipts only, process existing V1 receipts)
 #   - If Horizon contracts not detected: Remain in legacy mode (V1 receipts only)
 # When disabled: Pure legacy mode, no Horizon detection performed
-enabled = true
+enabled = false
+# Required if horizon.enabled = true
+# subgraph_service_address = "0xcf7ed3acca5a467e9e704c703e8d87f634fb0fc9";