Add LocalizedStringKey + Bundle init overloads to all text-bearing OUDS components

[Copilot]

Components with text parameters only accepted String, making it impossible for library consumers to load strings from a custom Bundle (e.g., Bundle.module in a Swift Package). This adds LocalizedStringKey-based init overloads matching the SwiftUI API convention.

Changes

• New internal helper LocalizedStringKey+keyString.swift: Mirror-based keyString extraction + resolved(tableName:bundle:) wrapping NSLocalizedString. Resolves at init time — no rendering changes needed.

• New init overloads on all text-bearing components, each accepting (_ key: LocalizedStringKey, tableName: String? = nil, bundle: Bundle = .main, comment: StaticString? = nil, ...):

  • OUDSButton (text-only, text+icon)
  • OUDSLink (text-only/icon, indicator)
  • OUDSSuggestionChip, OUDSFilterChip (text-only, icon+text)
  • OUDSChipPicker (title, all 3 selection modes)
  • OUDSBulletList.Item
  • OUDSCheckboxItem, OUDSSwitchItem, OUDSRadioItem
  • OUDSTag (label + loadingLabel via dedicated loadingKey: parameter)
  • OUDSTextInput, OUDSPasswordInput
  • OUDSAlertMessage, OUDSInlineAlert

• CHANGELOG updated under [Unreleased]

Usage

// Before: only plain String, locked to Bundle.main
OUDSButton(text: "some_key", appearance: .strong) { }

// After: load from any bundle (e.g. a Swift Package module)
OUDSButton(LocalizedStringKey("some_key"), bundle: Bundle.module, appearance: .strong) { }
OUDSCheckboxItem(LocalizedStringKey("agree_terms"), bundle: Bundle.module, isOn: $isOn)
OUDSTextInput(LocalizedStringKey("email_label"), bundle: Bundle.module, text: $text)

All new inits delegate to the existing String-based inits after resolution, so existing validation, accessibility, and rendering logic is fully preserved.

⚠️ keyString uses Mirror reflection on LocalizedStringKey's internal structure. This is stable across known SwiftUI versions but is an implementation detail — documented in code.

Related issues

Closes #1364

Motivation & Context

Library authors embedding OUDS in a Swift Package need to load localized strings from Bundle.module, not just Bundle.main. Without this, they must pre-resolve strings manually before passing them to components.

Types of change

• New feature (non-breaking change which adds functionality)

Previews

No UI change — API addition only.

Checklist

Contribution

• I have read the contributing guidelines

Accessibility

• My change follows accessibility good practices

Design

• My change respects the design guidelines of Orange Unified Design System

Development

• My change follows the developer guide
• I checked my changes do not add new SwiftLint warnings
• (NA) I have added unit tests to cover my changes (optional)

Documentation

• My change introduces changes to the documentation and/or I have updated the documentation accordingly

Checklist (for Core Team only)

• The evolution have been tested and the project builds for iPhones and iPads
• Code review has been done by reviewers according to CODEOWNERS file
• (NA) Design review has been done
• (NA) Accessibility review has been done
• (NA) Q/A team has tested the evolution
• Documentation has been updated if relevant
• Internal files have been updated if relevant (like CONTRIBUTING, DEVELOP, THIRD_PARTY, CONTRIBUTORS, NOTICE)
• CHANGELOG has been updated respecting keep a changelog rules and reference the issues
• (NA) The wiki has been updated if needed (optional)

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[pylapp]

LGTM

[pylapp]

To test, sue the design system toolbox and update MainView.swift

//
// Software Name: OUDS iOS
// SPDX-FileCopyrightText: Copyright (c) Orange SA
// SPDX-License-Identifier: MIT
//
// This software is distributed under the MIT license,
// the text of which is available at https://opensource.org/license/MIT/
// or see the "LICENSE" file for more details.
//
// Authors: See CONTRIBUTORS.txt
// Software description: A SwiftUI components library with code examples for Orange Unified Design System
//

import OUDSSwiftUI
import SwiftUI

struct MainView: View {

    @Environment(\.theme) private var theme

    var body: some View {
        OUDSTabBar(selected: 3, count: 4) {
            TokensPage()
                .tabItem {
                    Label("app_bottomBar_tokens_label", image: "design-token")
                }
                .tag(0)
            ComponentsPage()
                .tabItem {
                    Label("app_bottomBar_components_label", image: "component-atom")
                }
                .tag(1)
            AboutPage()
                .tabItem {
                    Label("app_bottomBar_about_label", image: "info-fill")
                }
                .tag(2)
            DebugPage()
                .tabItem {
                    Label("Debug", systemImage: "gear")
                }
                .tag(2)
        }.oudsAccentColor(theme.colors.contentBrandPrimary)
    }
}

struct DebugPage: View {
    
    var body: some View {
        VStack {
            // Raw string
            OUDSButton("Foo") {}
            // Local string
            OUDSButton("app_components_alert_alertMessage_closeButton_tech") {}
            // Lib string
            OUDSButton("core_checkboxPicker_indeterminate_hint_a11y", bundle: Bundle.OUDSComponents) {}
        }
    }
}

[pylapp]

LGTM

[pylapp]

Note

@ludovic35
This pull request must be merged after the one in the Swift Package side (Orange-OpenSource/ouds-ios-design-system-toolbox#217)