[codex] Add Android universal wallet readiness gates

[takemiyamakoto]

Summary

• adds Android Universal Wallet V2 contracts, shared registry/default derivations, and migration/export-only guardrails
• adds Bitcoin, Solana, TON, and Iroha/Taira client, balance/history, routing, and fail-closed transfer surfaces
• adds public shared modules, open-source boundary audits, branch-flow gates, XCM executable route evidence gates, and release docs
• removes tracked private/binary artifacts from the public repo and replaces the PushPayment jar path with source coverage

Validation

• bash scripts/test-branch-flow-audit.sh && bash scripts/audit-branch-flow.sh
• bash scripts/test-todo-debt-audit.sh && bash scripts/audit-todo-debt.sh
• bash scripts/test-private-overlay-boundary.sh && bash scripts/audit-public-artifacts.sh
• bash scripts/test-xcm-registry-metadata-audit.sh && bash scripts/audit-xcm-registry-metadata.sh --require-executable --write-gap-report build/reports/xcm-registry-gap-report.json --require-route-file scripts/xcm-required-routes.tsv --require-gap-file scripts/xcm-discovery-only-routes.tsv
• bash scripts/test-xcm-production-evidence-audit.sh && bash scripts/audit-xcm-production-evidence.sh
• bash scripts/check-iroha-mobile-sdk-release-assets.sh --self-test
• ./gradlew :public-shared-features-xcm:testDebugUnitTest --tests jp.co.soramitsu.xcm.XcmServiceTest --tests jp.co.soramitsu.xcm.domain.XcmEntitiesFetcherTest --tests jp.co.soramitsu.xcm.SubstrateXcmTransferEngineTest :feature-wallet-impl:compileDebugKotlin --no-daemon --console=plain --stacktrace
• ./gradlew detektAll --no-daemon --console=plain --stacktrace
• ./gradlew runTest :app:lint :app:assembleDebug --no-daemon --console=plain --stacktrace

Release notes

• XCM production evidence remains blocked until operator-run route evidence is recorded in scripts/xcm-production-evidence.json.
• Private release overlays remain CI/local-only and are checked by the public artifact/private-overlay gates.

[chatgpt-codex-connector]

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