feat(logging): add tracing instrumentation and refine log messages

[nanderstabel]

Description of change

This PR improves the logging and observability strategy across identity-wallet:

1. tracing::instrument Annotations: Added #[tracing::instrument(skip_all, err)] across all reducer and key I/O helper functions. This automatically captures spans and emits errors at ERROR level via tracing's default log bridge when operations fail.
2. info! to debug! Demotions:
   • Verbose data structures (e.g. decoded documents, issuer metadata, token requests/responses) and internal debugging values were demoted from info! to debug! to prevent log flooding in logcat/console and avoid logging potentially sensitive payload fields at standard levels.
   • info! is reserved for high-level lifecycle milestones (e.g. initiating flows, successful status checks, profile resets), maintaining a high signal-to-noise ratio.
3. Intent-focused Logs: Replaced bare function-name logs (e.g. info!("send_token_request")) with contextual logs capturing key parameters and intent.
4. Updated openid4vc dependency: Updated oid4vc git rev to incorporate latest tracing and log improvements from openid4vc#134.

Example of improved log messages:

Old:

Error: Failed to get credential for configuration id OpenBadgeCredential: error decoding response body: data did not match any variant of untagged enum CredentialResponseType at line 1 column 77
[2026-08-20][10:27:16][ERROR][identity_wallet::command] state update failed: Error: Failed to get credential for configuration id OpenBadgeCredential: error decoding response body: data did not match any variant of untagged enum CredentialResponseType at line 1 column 77
[2026-08-20][10:27:16][ERROR][webview:runCallback@user-script:5:284:15] Error: Error: Failed to get credential for configuration id OpenBadgeCredential: error decoding response body: data did not match any variant of untagged enum CredentialResponseType at line 1 column 77

New:

[2026-08-20][10:21:09][DEBUG][oid4vc_core::jwt] Encoding and signing JWT algorithm=EdDSA kid=did:jwk:eyJhbGciOiJFZERTQSIsImNydiI6IkVkMjU1MTkiLCJraWQiOiJfVTZ6QWtCc3dvaVFSMTBRYzBZUUIwb1VfZENXNWR5S3l1eU1Cc0tMZF9ZIiwia3R5IjoiT0tQIiwieCI6IkEwa0xKdVh3YUV4QnUxcFE1Tzl4QWI0WGJzYzFWM1V3dnZxSmR3RG5obFkifQ#0 subject_syntax_type=did:jwk
[2026-08-20][10:21:09][INFO][oid4vci::wallet] Sending credential request body to issuer request_body_json={"credential_configuration_id":"OpenBadgeCredential","proofs":{"jwt":["eyJ0eXAiOiJvcGVuaWQ0dmNpLXByb29mK2p3dCIsImFsZyI6IkVkRFNBIiwia2lkIjoiZGlkOmp3azpleUpoYkdjaU9pSkZaRVJUUVNJc0ltTnlkaUk2SWtWa01qVTFNVGtpTENKcmFXUWlPaUpmVlRaNlFXdENjM2R2YVZGU01UQlJZekJaVVVJd2IxVmZaRU5YTldSNVMzbDFlVTFDYzB0TVpGOVpJaXdpYTNSNUlqb2lUMHRRSWl3aWVDSTZJa0V3YTB4S2RWaDNZVVY0UW5VeGNGRTFUemw0UVdJMFdHSnpZekZXTTFWM2RuWnhTbVIzUkc1b2JGa2lmUSMwIn0.eyJpc3MiOiJkaWQ6andrOmV5SmhiR2NpT2lKRlpFUlRRU0lzSW1OeWRpSTZJa1ZrTWpVMU1Ua2lMQ0pyYVdRaU9pSmZWVFo2UVd0Q2MzZHZhVkZTTVRCUll6QlpVVUl3YjFWZlpFTlhOV1I1UzNsMWVVMUNjMHRNWkY5Wklpd2lhM1I1SWpvaVQwdFFJaXdpZUNJNklrRXdhMHhLZFZoM1lVVjRRblV4Y0ZFMVR6bDRRV0kwV0dKell6RldNMVYzZG5aeFNtUjNSRzVvYkZraWZRIiwiYXVkIjoiaHR0cHM6Ly9pc3N1ZXIucGlsb3RzLmVkdWJhZGdlcy5ubC9lZHViYWRnZXMiLCJpYXQiOjE3ODcyMjEyNjksIm5vbmNlIjoiMDAyNzUxNTc4ZDk5NGVhNGE0N2RhZjM1MmI2NjMyZjAifQ.JP4zxlcM7yy6BHjulb06iZtA-Yr0KBVZC3W0SKOVcyTUNGuIOyq2PxWGPF2to1Fp8mqWhxIPP9TTgWgUFrZsDg"]}}
[2026-08-20][10:21:09][INFO][oid4vci::wallet] Proof JWT header parameters kid=did:jwk:eyJhbGciOiJFZERTQSIsImNydiI6IkVkMjU1MTkiLCJraWQiOiJfVTZ6QWtCc3dvaVFSMTBRYzBZUUIwb1VfZENXNWR5S3l1eU1Cc0tMZF9ZIiwia3R5IjoiT0tQIiwieCI6IkEwa0xKdVh3YUV4QnUxcFE1Tzl4QWI0WGJzYzFWM1V3dnZxSmR3RG5obFkifQ#0 alg=EdDSA
[2026-08-20][10:21:10][ERROR][oid4vci::wallet] error=Credential issuance failed (HTTP 400 Bad Request): {"error":"credential_request_denied","error_description":"Credential denied"}
[2026-08-20][10:21:10][DEBUG][identity_wallet::command] emitted error event `error` with payload:
Error: Failed to get credential for configuration id OpenBadgeCredential: Credential issuance failed (HTTP 400 Bad Request): {"error":"credential_request_denied","error_description":"Credential denied"}
[2026-08-20][10:21:10][ERROR][identity_wallet::command] State update failed after 904.164071ms: Error: Failed to get credential for configuration id OpenBadgeCredential: Credential issuance failed (HTTP 400 Bad Request): {"error":"credential_request_denied","error_description":"Credential denied"}
[2026-08-20][10:21:10][ERROR][webview:runCallback@user-script:5:284:15] Error: Error: Failed to get credential for configuration id OpenBadgeCredential: Credential issuance failed (HTTP 400 Bad Request): {"error":"credential_request_denied","error_description":"Credential denied"}

Links to any relevant issues

• Related to feat(tracing): add structured tracing instrumentation across workspace openid4vc#134

How the change has been tested

• Ran cargo fmt --all -- --check
• Ran cargo clippy --all-targets --all-features -- -D warnings
• Ran full test suite via cargo test --workspace (116 unit tests, 29 integration tests, 1 doc test passing)
• Verified log output and levels via tauri-plugin-log with Android adb logcat and desktop targets

Definition of Done checklist

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[Copilot]

Pull request overview

This PR updates identity-wallet’s observability by adding tracing::instrument spans to many async reducers/helpers and refining log messages/levels to reduce noise and avoid logging verbose payloads at info.

Changes:

• Add #[tracing::instrument(skip_all, err)] to reducers and several helper functions.
• Demote verbose/value-heavy info! logs to debug! and replace “function name” logs with intent/parameter-focused messages.
• Update the oid4vc git revision and expand Tauri log filtering to include oid4vc* crates.

Reviewed changes

Copilot reviewed 53 out of 54 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
unime/src-tauri/src/lib.rs	Adds debug log filters for oid4vc* crates in Tauri logging.
identity-wallet/src/subject.rs	Demotes resolver init logs to debug.
identity-wallet/src/stronghold.rs	Demotes key-generation / snapshot logs to debug.
identity-wallet/src/state/verified_data/reducers/mod.rs	Adds tracing + refines email verification flow logs.
identity-wallet/src/state/user_journey/reducers/cancel_user_journey.rs	Adds tracing and debug log for cancellation.
identity-wallet/src/state/trust_list/reducers/toggle_entry.rs	Adds tracing instrumentation.
identity-wallet/src/state/trust_list/reducers/edit_trust_list.rs	Adds tracing instrumentation.
identity-wallet/src/state/trust_list/reducers/edit_entry.rs	Adds tracing instrumentation.
identity-wallet/src/state/trust_list/reducers/delete_trust_list.rs	Adds tracing instrumentation.
identity-wallet/src/state/trust_list/reducers/delete_entry.rs	Adds tracing instrumentation.
identity-wallet/src/state/trust_list/reducers/add_trust_list.rs	Adds tracing instrumentation.
identity-wallet/src/state/trust_list/reducers/add_entry.rs	Adds tracing instrumentation.
identity-wallet/src/state/search/reducers/search_query.rs	Adds tracing + debug summary of match counts.
identity-wallet/src/state/search/reducers/delete_recent_search.rs	Adds tracing + debug log for deletion.
identity-wallet/src/state/search/reducers/add_recent_search.rs	Adds tracing + debug log for insertion.
identity-wallet/src/state/qr_code/reducers/read_credential_offer.rs	Adds tracing + shifts verbose offer/metadata logs to debug.
identity-wallet/src/state/qr_code/reducers/read_authorization_request.rs	Adds tracing + refines request metadata logs and reduces verbosity.
identity-wallet/src/state/profile_settings/reducers/update_sorting_preference.rs	Adds tracing instrumentation to sorting reducers.
identity-wallet/src/state/profile_settings/reducers/update_profile_settings.rs	Adds tracing + debug log for profile settings updates.
identity-wallet/src/state/profile_settings/reducers/set_locale.rs	Adds tracing instrumentation to locale reducer.
identity-wallet/src/state/profile_settings/reducers/enable_biometrics.rs	Adds tracing instrumentation to biometrics reducer.
identity-wallet/src/state/profile_settings/reducers/create_new.rs	Adds tracing + refines create-identity lifecycle logging.
identity-wallet/src/state/did/validate_linked_verifiable_presentations.rs	Demotes high-volume DID/presentation logs to debug.
identity-wallet/src/state/did/validate_domain_linkage.rs	Demotes domain linkage logs to debug.
identity-wallet/src/state/did/reducers/preferred_method.rs	Adds tracing instrumentation.
identity-wallet/src/state/did/reducers/preferred_keytype.rs	Adds tracing instrumentation.
identity-wallet/src/state/dev_mode/reducers/toggle_dev_mode.rs	Adds tracing instrumentation.
identity-wallet/src/state/dev_mode/reducers/show_setting.rs	Adds tracing instrumentation.
identity-wallet/src/state/dev_mode/reducers/reducers.rs	Adds tracing instrumentation to unlock reducer.
identity-wallet/src/state/dev_mode/reducers/load_dev_profile.rs	Adds tracing + improves dev-profile log context.
identity-wallet/src/state/dev_mode/reducers/ferris_static_profile.rs	Adds tracing instrumentation.
identity-wallet/src/state/dev_mode/reducers/dragon_dynamic_profile.rs	Adds tracing instrumentation.
identity-wallet/src/state/dev_mode/reducers/clear_debug_log.rs	Adds tracing instrumentation.
identity-wallet/src/state/credentials/reducers/update_credential_metadata.rs	Adds tracing + demotes before/after metadata logs to debug.
identity-wallet/src/state/credentials/reducers/share_to_linkedin.rs	Adds tracing + info log for share intent.
identity-wallet/src/state/credentials/reducers/send_token_request.rs	Adds tracing + refines token-request intent logging; demotes verbose logs.
identity-wallet/src/state/credentials/reducers/send_interactive_authorization_request_follow_up.rs	Adds tracing + intent log with credential count.
identity-wallet/src/state/credentials/reducers/send_credential_request.rs	Adds tracing + refines offer-handling logs; reduces verbosity.
identity-wallet/src/state/credentials/reducers/self_issue_credential.rs	Adds tracing + intent logs for self-issuance.
identity-wallet/src/state/credentials/reducers/refresh_credential_status.rs	Adds tracing instrumentation to status refresh helpers.
identity-wallet/src/state/credentials/reducers/refresh_all_credential_statuses.rs	Adds tracing instrumentation.
identity-wallet/src/state/credentials/reducers/handle_oid4vp_authorization_request.rs	Adds tracing + improves error context/verbosity in OID4VP flow.
identity-wallet/src/state/credentials/reducers/delete_credential.rs	Adds tracing instrumentation.
identity-wallet/src/state/connections/reducers/handle_siopv2_authorization_request.rs	Adds tracing + refines SIOPv2 response lifecycle logs.
identity-wallet/src/state/common/reducers/unlock_storage.rs	Adds tracing + improves unlock lifecycle logs and counts.
identity-wallet/src/state/common/reducers/reset_state.rs	Adds tracing + info log for state reset.
identity-wallet/src/state/common/reducers/get_state.rs	Adds tracing instrumentation.
identity-wallet/src/state/common/reducers/check_password.rs	Adds tracing + logs password verification outcomes.
identity-wallet/src/state/common/reducers/cancel_user_flow.rs	Adds tracing + debug log for flow cancellation.
identity-wallet/src/persistence.rs	Demotes storage-path logs to debug.
identity-wallet/src/command.rs	Adds reduce duration timing and refines timeout/error logs.
identity-wallet/Cargo.toml	Adds direct tracing dependency for instrumentation usage.
Cargo.toml	Updates oid4vc git rev (includes a temporary marker comment).
Cargo.lock	Updates lockfile for oid4vc rev and tracing deps.

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