feat: add Atlas native app UX overhaul

Docs/Execution/Week-02.md

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+# Week 2 Plan
+
+## Goal
+
+Freeze high-fidelity design input and refine schemas required for implementation.
+
+## Must Deliver
+
+- High-fidelity drafts for `Overview`, `Smart Clean`, and `Apps`
+- Permission explainer sheets
+- `Protocol v1.1`
+- Engineering scaffold proposal
+- MVP acceptance matrix v1
+
+## Day Plan
+
+- `Day 1` Review low-fidelity flows and lock layout direction
+- `Day 2` Produce `Overview` and `Smart Clean` high-fidelity drafts
+- `Day 3` Produce `Apps` high-fidelity draft and uninstall preview details
+- `Day 4` Freeze package and target graph
+- `Day 5` Gate review
+
+## Owner Tasks
+
+- `UX Agent` deliver design screens and state variants
+- `Mac App Agent` define shell, navigation, and dependency wiring
+- `Core Agent` refine protocol and persistence models
+- `System Agent` refine XPC and helper interfaces
+- `Adapter Agent` define scan and app-footprint chains
+- `QA Agent` refine acceptance matrix
+
+## Exit Criteria
+
+- Three key screens are ready for implementation slicing
+- Protocol and persistence models are stable enough for Week 3 freeze