Preserve process command in blocked-process D-Bus logs

[coderabbitai]

Summary

Correct the blocked-process log field mapping.

When Wayland app-ID lookup succeeds, the report path currently stores the Wayland app ID in both LogEntry.comm and LogEntry.wayland_app_id. Preserve the process command in LogEntry.comm when it is available.

Rationale

D-Bus clients need both values. comm identifies the process command. wayland_app_id identifies the Wayland application. Using the app ID for both fields loses process-command information.

Affected area

• crates/cardwire-daemon/src/analyzer/models.rs
• The Wayland-success path in CardwireAnalyzer::report_logger
• report_blocked call arguments

Required changes

• Get the process command independently of the Wayland app-ID lookup.
• When both values are available, pass the process command as name and the Wayland app ID as wayland_app_id to report_blocked.
• Preserve the existing fallback behavior when only one value is available.

Acceptance criteria

• LogEntry.comm contains the process command when the command can be resolved.
• LogEntry.wayland_app_id contains the Wayland app ID when lookup succeeds.
• D-Bus consumers can receive distinct values for the two fields.
• Add or update tests for the field mapping where practical.

Backlinks

• Deferred from PR feat(cardwired): add a DBUS API for blocked apps logs #147: feat(cardwired): add a DBUS API for blocked apps logs #147
• Review comment: feat(cardwired): add a DBUS API for blocked apps logs #147 (comment)
• Requested by: @luytan