[PM-34422] [IS] feat: Add card number format grouping

[fedemkr]

🎟️ Tracking

PM-34422

📔 Objective

Add card number format grouping to the cipher add/edit card number fields.

Note

This follows the same logic as in clients repo: https://github.com/bitwarden/clients/blob/7dbc30ee059606e0fb2a21d135f1f4cbd92e1b8a/libs/angular/src/pipes/credit-card-number.pipe.ts#L11

📸 Screenshots

[github-actions]

Checkmarx One – Scan Summary & Details – ddf4fcce-32ff-4c92-b545-8661fd0d9d63

Great job! No new security vulnerabilities introduced in this pull request

[codecov]

Codecov Report

❌ Patch coverage is 98.07692% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 87.35%. Comparing base (4568a40) to head (2559419).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
...em/AddEditItem/AddEditCardItem/CardComponent.swift	94.59%	2 Missing ⚠️
...EditItem/AddEditCardItem/AddEditCardItemView.swift	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2506      +/-   ##
==========================================
+ Coverage   87.28%   87.35%   +0.07%     
==========================================
  Files        1908     1920      +12     
  Lines      169827   171086    +1259     
==========================================
+ Hits       148226   149457    +1231     
- Misses      21601    21629      +28     

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The base branch was changed.

[github-actions]

🤖 Bitwarden Claude Code Review

Overall Assessment: APPROVE

This PR adds brand-aware digit grouping to the Add/Edit card number field, mirroring the existing logic from the clients Angular pipe. Formatting is implemented as a pure function on CardComponent.Brand and consumed through a derived formattedCardNumber property on the state; the action handler now sanitizes input to digits-only before storing, keeping persisted data clean. Test coverage is thorough across brands, length-sensitive cases (Maestro 13/15/16/19, UnionPay 16/19), partial-input greediness, non-digit fallback, brand auto-detection from prefix, and explicit-brand override.

Code Review Details

No findings.