[PM-38792] feat: Enforce Send deletion date via Send Controls policy

[matt-livefront]

🎟️ Tracking

PM-38792

📔 Objective

Adds enforcement of the new Send Controls policy deletionHours option. When an organization restricts the Send deletion date, a non-owner/non-admin user sees the enforced deletion date pre-selected and locked on the Send add/edit screen, with helper text explaining the restriction. Also adds the previously-missing 14 days deletion option to the menu.

📸 Screenshots

[github-actions]

🤖 Bitwarden Claude Code Review

Overall Assessment: APPROVE

Reviewed the enforcement of the Send Controls deletionHours policy across the domain model (SendPolicyOptions), the SendDeletionDateType enum (new fourteenDays case plus from(hours:) mapping), and the add/edit Send screen (state, processor, and view). The implementation mirrors the existing enforcedAccessType pattern, resolves the most restrictive (minimum hours) deletion date across multiple policies, and disables the menu with helper text when enforced. Test coverage is thorough across all layers, including preset mapping, custom fallback, multi-policy resolution, and view enabled/disabled state.

Code Review Details

No blocking findings.

Notes considered and cleared during review:

• In edit mode loadData overrides the loaded Send's deletion date with the policy-enforced date — this is intentional and consistent with how enforcedAccessType is applied.
• A policy-enforced non-preset value produces a .custom date not present in availableDeletionDateTypes for .add mode, but BitwardenMenuField renders selection.localizedName directly and the field is disabled, so the value still displays correctly.
• intValue on AnyCodable robustly handles int/double/string server encodings for deletionHours.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.88%. Comparing base (091707b) to head (4a790d9).

Additional details and impacted files

@@                                Coverage Diff                                 @@
##           matt/PM-40460-send-controls-restrict-send-type    #2910      +/-   ##
==================================================================================
- Coverage                                           81.11%   78.88%   -2.24%     
==================================================================================
  Files                                                1039     1162     +123     
  Lines                                               67387    74715    +7328     
==================================================================================
+ Hits                                                54662    58939    +4277     
- Misses                                              12725    15776    +3051     

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