feat: Introduce the #[classified] macro

[geeknoid]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.0%. Comparing base (6f907b9) to head (664c47d).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main      #48    +/-   ##
========================================
  Coverage   100.0%   100.0%            
========================================
  Files          14       16     +2     
  Lines        1415     1597   +182     
========================================
+ Hits         1415     1597   +182     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[Copilot]

Pull Request Overview

This PR introduces a new #[classified] procedural macro for marking sensitive data types, refactors the existing Classified trait to use associated types instead of type parameters, and reorganizes the codebase by extracting taxonomy-related code into separate modules. Key changes include:

• Added new #[classified] macro for newtype wrappers
• Refactored Classified trait from Classified<T> to use associated type Payload
• Renamed RedactionEngine methods for consistency (e.g., display_redacted → redacted_display)
• Extracted taxonomy implementation from lib.rs to taxonomy.rs and created new classified.rs module
• Updated Debug format from <taxonomy/class:REDACTED> to <CLASSIFIED:taxonomy/class>

Reviewed Changes

Copilot reviewed 17 out of 18 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
crates/data_privacy_macros/src/taxonomy.rs	Extracted taxonomy macro implementation from lib.rs with updated trait signature
crates/data_privacy_macros/src/classified.rs	New module implementing the #[classified] macro for newtype structs
crates/data_privacy_macros/src/lib.rs	Refactored to delegate to taxonomy and classified modules
crates/data_privacy/src/classified.rs	Updated trait definition to use associated type pattern
crates/data_privacy/src/redaction_engine.rs	Renamed methods for better naming consistency
crates/data_privacy/src/lib.rs	Added documentation for new classified macro
crates/data_privacy/examples/employees/*.rs	Updated to use new newtype pattern with #[classified] macro
snapshot files	Updated to reflect new Debug format and trait signatures