Startup route logic (reopen last project)

[kirich1409]

Epic: Welcome Screen (#139)

Task ID: T-6 · Wave: 3 · Complexity: M

Описание

Логика определения начального route на основе SettingsStore.reopenLastProject + SwiftData.

Изменить создание Store в AppDelegate (lazy var или computed):

• reopenLastProject == true + есть recent project → .main(MainFeature.State()) + .openProject(lastURL)
• Иначе → .welcome(WelcomeFeature.State())

Module: MacApp/Relay/AppDelegate.swift, MacApp/Relay/AppFeature.swift

Acceptance Criteria

• reopenLastProject=true + recent project → Main с последним проектом
• reopenLastProject=true + пустая БД → Welcome
• reopenLastProject=false → Welcome
• Корректная инициализация Store (lazy или computed)
• Тест: 3 сценария выбора route

Dependencies

• Add reopenLastProject setting to SettingsStore #142 (T-2: reopenLastProject setting)
• Integrate WelcomeFeature into AppFeature + rewrite WelcomeView #144 (T-3: Integrate WelcomeFeature)