feat(swift-ios): add swipe-down command palette

[saphid]

What

Adds a native swipe-down command palette with recent threads, projects, new-task, add-project, and settings actions.

Scope

This is the single extracted feature commit: the palette model, palette view, WorkspaceView presentation gesture, and its focused tests. It excludes the surrounding personal release history.

Verification

• FeatureCommandPaletteTests: 5 tests passed
• Exact extracted head: signed simulator build succeeded
• Integrated simulator smoke: connected to the seeded showcase backend and rendered the current Home thread list
• The simulator HID driver cannot emit touch-move events for this top-edge gesture, so physical-phone gesture acceptance remains the visual gate

Dependencies and gate

• The base provider-catalog fixture failure is repaired separately in test(swift-ios): use environment-scoped provider catalogs #6130
• Draft pending physical swipe acceptance and maintainer direction

Note

Add swipe-down command palette to iOS workspace view

• Adds a command palette sheet to WorkspaceView triggered by a downward drag gesture starting within 88pt of the top edge with at least 72pt of vertical travel.
• The palette (FeatureCommandPaletteView) supports two modes: a root view with actions and search across projects and threads, and a project picker for "New task in…" navigation.
• Search results are scored and ranked using token-based matching across title, detail, and search terms fields; prefixing the query with > filters to actions only.
• Selecting an action routes to the appropriate handler in WorkspaceView: opening a thread, switching to a project, starting a new task, or presenting the add-project or settings sheets.

📊 Macroscope summarized 2293598. 3 files reviewed, 0 issues evaluated, 0 issues filtered, 0 comments posted

🗂️ Filtered Issues

No issues evaluated.

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[macroscopeapp]

🟠 High Workspace/FeatureCommandPaletteModel.swift:266

threadItems builds projectsByID with Dictionary(uniqueKeysWithValues:), which traps when the snapshot contains two projects with the same id. Legacy aggregate snapshots can include cloned projects from multiple environments sharing an unscoped id, so presenting or searching the command palette with such a cached snapshot crashes the app. Consider using a duplicate-tolerant lookup (e.g. Dictionary(_:uniquingKeysWith:) or scoping by environment) instead.

🤖 Copy this AI Prompt to have your agent fix this:

In file @apps/swift-ios/Features/Workspace/FeatureCommandPaletteModel.swift around line 266:

`threadItems` builds `projectsByID` with `Dictionary(uniqueKeysWithValues:)`, which traps when the snapshot contains two projects with the same `id`. Legacy aggregate snapshots can include cloned projects from multiple environments sharing an unscoped `id`, so presenting or searching the command palette with such a cached snapshot crashes the app. Consider using a duplicate-tolerant lookup (e.g. `Dictionary(_:uniquingKeysWith:)` or scoping by environment) instead.