Add CapX testnet (chain ID: 756) deployments for Safe v1.4.1

[augchi-capx]

Summary

This PR adds CapX testnet (chain ID: 756) deployment addresses for all Safe v1.4.1 contracts.

Network Details

• Network: CapX Testnet
• Chain_ID: 756
• RPC: https://capx-testnet-c1.rpc.caldera.xyz/http
• Explorer: https://capx-testnet-c1.explorer.caldera.xyz/

Deployment Details

• Safe Version: 1.4.1
• Deployment Type: Canonical (deterministic deployment)
• Files Changed: 12

Contracts Deployed

All deployed addresses match the canonical Safe v1.4.1 addresses:

• Safe: 0x41675C099F32341bf84BFc5382aF534df5C7461a
• SafeL2: 0x29fcB43b46531BcA003ddC8FCB67FFE91900C762
• SafeProxyFactory: 0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67
• MultiSend: 0x38869bf66a61cF6bDB996A6aE40D5853Fd43B526
• MultiSendCallOnly: 0x9641d764fc13c8B624c04430C7356C1C7C8102e2
• CreateCall: 0x9b35Af71d77eaf8d7e40252370304687390A1A52
• SignMessageLib: 0xd53cd0aB83D845Ac265BE939c57F53AD838012c9
• CompatibilityFallbackHandler: 0xfd0732Dc9E303f09fCEf3a7388Ad10A83459Ec99
• SimulateTxAccessor: 0x3d4BA2E0884aa488718476ca2FB8Efc291A46199
• SafeMigration: 0x526643F69b81B008F46d95CD5ced5eC0edFFDaC6
• SafeToL2Migration: 0xfF83F6335d8930cBad1c0D439A841f01888D9f69
• SafeToL2Setup: 0xBD89A1CE4DDe368FFAB0eC35506eEcE0b1fFdc54

Verification

• ✅ Addresses verified against canonical deployments
• ✅ All tests passing
• ✅ JSON linting passed

---

Note

Adds chain ID 756 (CapX testnet) as canonical to all Safe v1.4.1 asset manifests.

• Assets v1.4.1:
  • Add networkAddresses entry "756": "canonical" to:
    • safe.json, safe_l2.json, safe_proxy_factory.json
    • multi_send.json, multi_send_call_only.json
    • create_call.json, sign_message_lib.json, compatibility_fallback_handler.json, simulate_tx_accessor.json
    • safe_migration.json, safe_to_l2_migration.json, safe_to_l2_setup.json

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