Implement Aegis dashboard wallet network guard

[El-swaggerito]

Description

Difficulty: Expert

Type: Feature

Summary

Implement a wallet network guard for dashboard actions.

Current Behaviour

Users may connect Freighter on a network that does not match dashboard configuration.

Expected Behaviour

The dashboard should detect network mismatch and block or warn before sensitive actions.

Suggested Implementation

Create wallet network hook, guard component, action blocking, tests or fixtures, and docs.

Files or Areas Likely Affected

• src/features/wallet/
• src/config/
• src/components/
• src/lib/
• tests/
• docs/

Acceptance Criteria

• Wallet network guard is implemented.
• Network mismatch is detected.
• Sensitive actions are blocked or warned according to policy.
• User guidance is clear.
• Tests or fixtures cover mismatch states.
• Docs explain network assumptions.

Additional Notes

This reduces wrong-network risk.

[panditdhamdhere]

I would like to implement this.

[grantfox-oss]

🦊 GrantFox — @panditdhamdhere has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #180)
2. Your PR will be reviewed by the Axionvera maintainers

Good luck! Track your progress on GrantFox.

[El-swaggerito]

Assigned to @panditdhamdhere. Please follow the acceptance criteria and submit a clean PR linked to this issue.