v1.36.10: CHAINS_REF v1.7.6 — all VM plugins ZAP-native in the image

Bumps chains v1.7.5→v1.7.6 (dexvm/schain/identityvm/graphvm json→ZAP migrations)
+ zap v1.2.5. CHAINS_REF=v1.7.6 so the baked VM plugins carry the ZAP-native tx/
block wire. Node builds clean; xvm 12 pkgs green. Plugin subgraph now references
only surviving tags (chains v1.7.6 → node v1.36.9 → utxo v0.5.7).

Co-authored-by: Hanzo Dev <dev@hanzo.ai>

go.mod

@@ -120,7 +120,7 @@ require (
 	github.com/luxfi/accel v1.2.4
 	github.com/luxfi/api v1.0.16
 	github.com/luxfi/atomic v1.0.0
-	github.com/luxfi/chains v1.7.5
+	github.com/luxfi/chains v1.7.6
 	github.com/luxfi/codec v1.1.5
 	github.com/luxfi/compress v0.0.5
 	github.com/luxfi/constants v1.6.1
@@ -147,7 +147,7 @@ require (
 	github.com/luxfi/validators v1.2.0
 	github.com/luxfi/vm v1.2.7
 	github.com/luxfi/warp v1.24.0
-	github.com/luxfi/zap v1.2.4
+	github.com/luxfi/zap v1.2.5
 	github.com/luxfi/zwing v0.5.2
 	github.com/nbutton23/zxcvbn-go v0.0.0-20210217022336-fa2cb2858354
 	github.com/zap-proto/http v0.0.0-20260506200741-fd6047874433