Personalize the Today view greeting

[Quaii]

What this PR does

This PR makes the Today view more welcoming, personal, and space-efficient across iOS and Android.

The time-based greeting previously shown above Synthesis is moved into the main header, replacing the generic “Today” title. Users can optionally provide their name during onboarding or later in Settings, producing greetings such as “Good evening, Alex.” When no name is provided, the localized greeting is shown without a comma.

The “Today” label is moved to the Synthesis section, where it now reads naturally alongside the current recovery and status indicators—for example, “Today · Rest · Solid.”

The top spacing is also reduced slightly. Because Today is the app’s primary screen, this makes more useful information visible immediately without making the layout feel cramped.

The existing Today quick-action button remains in place. This PR is standalone and does not depend on #397; that PR can replace the entry point independently if it is merged.

The optional name is included in backups while remaining compatible with existing backups that do not contain the new field.

Type of change

• New feature
• Refactor / cleanup

How it was tested

• Rebased onto the current upstream main and confirmed that the PR is mergeable without Quick Launch files.
• Built the NOOPiOS app successfully for the iOS Simulator with code signing disabled.
• Manually tested the Today view in the iOS Simulator using example data.
• Verified greetings with and without a preferred name.
• Ran the focused ProfileGreetingTests — 3 tests passed.
• Ran swift test in Packages/WhoopStore — 266 tests passed.
• Ran ./gradlew testFullDebugUnitTest successfully.
• Ran python3 Tools/i18n_audit.py --ci upstream/main successfully; Android and Apple UI-copy checks and the German, Spanish, and French catalog checks passed.
• A broader StrandTests run executed 906 tests. The touched greeting tests passed; 26 unrelated BugReportTemplateTests assertions failed because the sandboxed test process could not read .github/ISSUE_TEMPLATE/bug_report.yml.
• Android was implemented and unit-tested, but not manually tested on an Android device.
• No BLE, protocol, or analytics behavior was changed.

Checklist

• Swift package tests pass for any package I touched (swift test in Packages/<name>)
• Android unit tests pass if I touched android/ (./gradlew testFullDebugUnitTest)
• No new build warnings introduced
• UI changes use only StrandDesign tokens — no hardcoded colors, fonts, or spacing
• No hardcoded hex frame bytes; protocol facts live in the schema / decoders
• Follows the conventions in docs/CONTRIBUTING.md
• I did not commit generated output (Strand.xcodeproj/) or any secrets/keystores

Related issues

Independent of #397. That PR may later replace the existing Today quick-action entry point, but it is not required for this change.

[tigercraft4]

Review (external, non-blocking). Note on scope below — likely a stacked-branch artifact, not real creep.

[Quaii]

Resolved that it was not able to be merged after the new today reorder update.

[Quaii]

Resolved the conflicts