RWA: recovery target reassignment

[brozorec]

fix #886

Summary by CodeRabbit

• Documentation

  • Clarified that country compliance checks apply independently to each recipient wallet.
  • Documented identity recovery behavior, including linked balances, chained recoveries, and wallet-specific identity profiles.

• Bug Fixes

  • Improved identity removal and recovery validation when previous or linked wallets retain token balances.
  • Added clearer handling for pending recoveries, preventing further recovery actions until linked balances are cleared.
  • Recovery-linked records are now cleaned up once balances have been fully resolved.

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Walkthrough

The change documents wallet-scoped identity and compliance behavior. It adds reverse recovery tracking, blocks removal and chained recovery while linked balances remain, and adds regression tests for drained and undrained recovery targets.

Changes

Recovery safeguards

Layer / File(s)	Summary
Recovery lifecycle contracts packages/tokens/src/rwa/compliance/modules/country_allow/mod.rs, packages/tokens/src/rwa/compliance/modules/country_restrict/mod.rs, packages/tokens/src/rwa/identity_verification/identity_registry_storage/mod.rs, packages/tokens/src/rwa/identity_verification/identity_registry_storage/storage.rs	Documentation and public declarations describe wallet-scoped profiles, reverse recovery links, and the PendingRecovery error.
Recovery target settlement packages/tokens/src/rwa/compliance/modules/max_balance/storage.rs, packages/tokens/src/rwa/identity_verification/identity_registry_storage/storage.rs	Recovery targets are linked to former accounts and remain restricted until all linked-token balances are zero.
Recovery regression coverage packages/tokens/src/rwa/identity_verification/identity_registry_storage/test.rs	Tests cover blocked removal and chained recovery, then successful operations after balances are drained.

Priority: ⬆️ High

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Bug fix · Severity of issue fixed: High

Suggested reviewers: ozgunozerk

Merge Risk: 🟠 High · up to 43fe8

A recovery target could eventually be reassigned while the former wallet still holds tokens, breaking compliance and MaxBalance accounting. This should be fixed before merge.

🚥 Pre-merge checks | ✅ 2 | ❌ 3

❌ Failed checks (3 warnings)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description only references issue #886. It does not describe the changes or include the required PR Checklist sections for Tests and Documentation.	Add a concise summary of the recovery-target reassignment changes, retain the issue reference, and complete the Tests and Documentation checklist items.
Out of Scope Changes check	⚠️ Warning	The recovery storage, error, MaxBalance documentation, and recovery tests support #886. The documentation-only changes in country_allow/mod.rs and country_restrict/mod.rs describe country evaluati…	Remove the unrelated country documentation changes, or provide a direct requirement in #886 that requires those documentation updates.
Docstring Coverage	⚠️ Warning	Docstring coverage is 75.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 8 functions across 6 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main change: reassignment behavior for RWA recovery targets.
Linked Issues check	✅ Passed	The changes implement the coding requirements in #886. Recovery tracking stores a reverse RecoveredFrom mapping. remove_identity and further recover_identity operations check linked-token balanc…

Full details: Out of Scope Changes check

Explanation

The recovery storage, error, MaxBalance documentation, and recovery tests support #886. The documentation-only changes in country_allow/mod.rs and country_restrict/mod.rs describe country evaluation and jurisdiction propagation, but they have no demonstrated connection to recovery target reassignment, pending balances, compliance checks for recovered tokens, or MaxBalance accounting.

✨ Finishing Touches 💡 1

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Actionable comments posted: 1

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Inline comments:
In
`@packages/tokens/src/rwa/identity_verification/identity_registry_storage/storage.rs`:
- Line 822: Update the RecoveredFrom read in the surrounding recovery flow to
use get_persistent_entry instead of directly calling persistent().get, so the
library-owned storage entry TTL is extended when read. Preserve the existing
missing-entry handling and subsequent old-account balance checks.

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Configuration used: Organization UI

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📥 Commits

Reviewing files that changed from the base of the PR and between 39501f5 and 43fe846.

📒 Files selected for processing (6)

• packages/tokens/src/rwa/compliance/modules/country_allow/mod.rs
• packages/tokens/src/rwa/compliance/modules/country_restrict/mod.rs
• packages/tokens/src/rwa/compliance/modules/max_balance/storage.rs
• packages/tokens/src/rwa/identity_verification/identity_registry_storage/mod.rs
• packages/tokens/src/rwa/identity_verification/identity_registry_storage/storage.rs
• packages/tokens/src/rwa/identity_verification/identity_registry_storage/test.rs

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Codecov Report

✅ All modified and coverable lines are covered by tests.

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