fix(configs): Pars mainnet canonical EVMChainID 7070 -> 494949 (LP-018 map)

The LP-018 (family,env)->EVMChainID source-of-truth map carried the stale
7070 for Pars mainnet, but the live chain reports 494949 (api.pars.network
eth_chainId=0x78d65 / net_version=494949), and the map's own Pars testnet/devnet
(494950/494951) are already on the 4949xx base. Align mainnet to 494949 so the
map, its reverse lookup, and the tests agree with reality and with the rest of
the map. brand-genesis-homes.md updated to match. Dated l2-*.json inventory
snapshots left as historical records.

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

configs/inventory/brand-genesis-homes.md

@@ -18,7 +18,7 @@ empirical provenance archive. Brand homes are deployment-side consumers
 Chain ID assignments:
 - hanzo:  mainnet 36963, testnet 36962, devnet 36964
 - zoo:    mainnet 200200, testnet 200201, devnet 200202
-- pars:   mainnet 7070,   testnet 494950, devnet 494951
+- pars:   mainnet 494949, testnet 494950, devnet 494951
 - spc:    mainnet 36911,  testnet 36910,  devnet 36912
 - osage:  mainnet 1872,   testnet 1871,   devnet 1873
 

configs/lp182_chain_id_map.go

@@ -99,7 +99,9 @@ func EVMChainID(family NetworkFamily, env uint32) (uint64, bool) {
 	case FamilyPars:
 		switch env {
 		case MainnetID:
-			return 7070, true
+			// 494949 = live api.pars.network eth_chainId 0x78d65 / net_version.
+			// (Was 7070 — a stale value the live chain never adopted.)
+			return 494949, true
 		case TestnetID:
 			return 494950, true
 		case DevnetID:
@@ -130,7 +132,7 @@ func NetworkFamilyOf(chainID uint64) (NetworkFamily, bool) {
 		return FamilyZoo, true
 	case 36911, 36910, 36912:
 		return FamilySPC, true
-	case 7070, 494950, 494951:
+	case 494949, 494950, 494951:
 		return FamilyPars, true
 	}
 	return "", false

configs/lp182_chain_id_map_test.go

@@ -28,7 +28,7 @@ func TestEVMChainID_KnownCells(t *testing.T) {
 		{FamilySPC, MainnetID, 36911},
 		{FamilySPC, TestnetID, 36910},
 		{FamilySPC, DevnetID, 36912},
-		{FamilyPars, MainnetID, 7070},
+		{FamilyPars, MainnetID, 494949},
 		{FamilyPars, TestnetID, 494950},
 		{FamilyPars, DevnetID, 494951},
 	}
@@ -77,7 +77,7 @@ func TestNetworkFamilyOf_RoundTrip(t *testing.T) {
 		{36963, FamilyHanzo},
 		{200200, FamilyZoo},
 		{36911, FamilySPC},
-		{7070, FamilyPars},
+		{494949, FamilyPars},
 	}
 	for _, c := range cases {
 		got, ok := NetworkFamilyOf(c.chainID)
@@ -146,7 +146,7 @@ func TestEVMChainIDFor_StringInputs(t *testing.T) {
 		{"spc", "mainnet", 36911},
 		{"spc", "testnet", 36910},
 		{"spc", "devnet", 36912},
-		{"pars", "mainnet", 7070},
+		{"pars", "mainnet", 494949},
 		{"pars", "testnet", 494950},
 		{"pars", "devnet", 494951},
 	}