Feat/account factory ttl extension

[marshalfleet]

Pull Request Description
Summary

Implemented TTL extension on account factory write operations to ensure account-related registry entries remain available and correctly maintained during runtime interactions.

Changes Made
Added TTL extension logic to account factory write paths
Updated relevant storage operations to refresh TTL when state is modified
Ensured TTL updates occur consistently with existing persistence patterns
Added safeguards for stale, missing, or invalid storage states
Followed existing contract patterns for storage management, validation, and security
Updated documentation where storage behavior or APIs changed
Runtime Behavior
Account factory writes now refresh the associated TTL automatically
Prevents valid account registry data from expiring unexpectedly after active writes
Maintains existing behavior for unaffected read-only operations
Testing
Added tests covering:
TTL extension during successful write operations
Storage updates with refreshed expiration
Handling of stale or invalid states
Existing account factory behavior without regressions
Verified contract tests pass
Confirmed CI checks complete successfully
Acceptance Criteria Covered
TTL extension implemented on account factory writes
Runtime state persistence updated where required
Behavior covered by tests
Documentation updated where APIs changed
Stale/disconnected/invalid states handled gracefully
No regressions in related account factory flows

Closes #227

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