feat(swift-ios): add reliable text and code sizing

[saphid]

The native app had no independent text and code size controls. This adds both controls with live previews in Settings, relative to iOS Dynamic Type.

Size changes apply immediately. Ordered settings writes and rollback to the last successful save prevent older failures or reconnects from restoring stale choices. The update preserves the current environment-owned automatic settlement settings.

Validation: 94 focused native tests passed at dd3fc8b3f42a44f767d7d85c37599c94800c421d, rebased onto SwiftUI base 614a7b672a86ee638f284298fe26e8b0194e0eaa. Coverage includes sizing, settings write order and rollback, legacy settings, and reconnect persistence. Live slider Save and relaunch checks on this updated branch remain incomplete.

Historical images and videos

These captures belong to original head 019c8b219d6fac4845f76ac06348bdc57446b7f3. They were not recaptured or revalidated for the modernized branch.

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Tracking: native work item.

Modernized and fixed with GPT-6 in Codex.

[coderabbitai]

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[macroscopeapp]

Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — This PR introduces persisted text and code-size controls with app-wide Dynamic Type behavior and propagation through multiple SwiftUI and UIKit rendering paths. The new settings UI, global trait handling, and serialized save changes make the production impact broad enough to warrant human review.

Not approved because:

• Monthly spending limit reached (workspace setting). Approvability relies on correctness review in order to determine eligibility

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[saphid]

Ready for human review on rebuilt current-target head 019c8b219d6fac4845f76ac06348bdc57446b7f3. The vouched 12-item handoff checklist passes: focused native tests are 66/66, exact-base/head simulator proof covers light, dark, independent changes, and relaunch persistence, the in-scope rollback/stale-failure defects are fixed, maintainer edits remain enabled, and the nine-part description/evidence now matches this head. CI triggered by the force-with-lease update is still settling; local affected checks and the exact-head build are green.

[cursor]

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

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