dcka 3147 wallet delegation policy

[maycon-mello]

• wallet delegation policy

[Copilot]

Pull request overview

Adds wallet delegation-policy support by introducing a new wasm delegation service plus core helpers for issuing delegatable credentials and working with delegation policies/chains.

Changes:

• Add DelegationService (wasm) with RPC client wrappers for mobile platforms.
• Add core delegation modules (types, policy fetch/digest attributes, credential issuance helpers, chain storage helpers) and unit tests.
• Add integration test/fixtures for issuing a delegatable credential and resolving its embedded delegation policy.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
packages/wasm/src/services/delegation/service.ts	Implements delegation operations (issue credential, compute policy digest, fetch policy).
packages/wasm/src/services/delegation/service-rpc.ts	Adds RPC client wrapper for delegation service methods.
packages/wasm/src/services/delegation/index.ts	Exposes the delegation service entrypoint.
packages/wasm/src/services/delegation/index.ios.js	Uses RPC client implementation on iOS.
packages/wasm/src/services/delegation/index.android.js	Uses RPC client implementation on Android.
packages/core/src/delegation/delegation-utils.ts	Adds helper to detect delegatable credentials via @context.
packages/core/src/delegation/delegation-types.ts	Introduces TS types for delegation policy structures.
packages/core/src/delegation/delegation-policy.ts	Fetches delegation policy and builds policy attributes/digest; builds role tree.
packages/core/src/delegation/delegation-policy.test.ts	Unit test for role-tree builder.
packages/core/src/delegation/delegation-issuance.ts	Issues delegatable credentials with embedded policy ID + digest.
packages/core/src/delegation/delegation-fixtures.ts	Adds sample delegation policies used by tests.
packages/core/src/delegation/delegation-chain.ts	Adds wallet persistence/read helpers for delegation chain documents.
packages/core/src/delegation/delegation-chain.test.ts	Unit tests for delegation chain read/write behavior.
integration-tests/delegation/delegation-policy.test.ts	Integration test issuing a delegatable credential and resolving its delegation policy.
integration-tests/delegation/delegation-fixtures.ts	Integration fixtures for a travel-agency delegation policy and contexts.

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