feat: add second WalletConnect node operator to US

[xDarksome]

Description

Title

How Has This Been Tested?

Not tested

Due Diligence

• Breaking change
• Requires a documentation update
• Requires a e2e/integration test update

[claude]

Claude finished @xDarksome's task in 1m 52s —— View job

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Todo List

• Read changed files
• Analyze for issues
• Report findings

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Review Findings

Issue 1: VPC CIDR Conflict - Placeholder Value Used
File: infra/mainnet/main.tf:240
Current: vpc_cidr_octet = 0
Impact: Creates VPC with CIDR 10.0.0.0/16, causing IP conflicts if other operators use same value

Each operator requires unique vpc_cidr_octet. Current allocations:

• EU wallet-connect: 5
• US wallet-connect: 6
• AP wallet-connect: 7
• SA wallet-connect: 8

Recommend using octet 9 or higher for US wallet-connect-2.

Note: EU operators wallet-connect-2 through wallet-connect-5 (lines 193-224) have same issue - all set to 0. Pre-existing codebase problem affecting multiple operators.

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