docs(openspec): reconcile adaptive workspace cards

openspec/changes/phase-3d-macos-native-mvp/design.md

@@ -89,9 +89,12 @@ review evidence only.
 - The client uses `NavigationSplitView`, native controls/materials, and standard macOS 26
   Liquid Glass APIs conditionally. macOS 15/14 retain identical hierarchy with native
   materials; no custom glass framework is introduced.
-- Desktop cards remain `328 x 205 pt`; an adaptive grid only changes column count. Card
-  actions remain accessible without hover, and no direct-connect button or endpoint entry is
-  added.
+- Desktop cards use a bounded adaptive `300...360 pt` width, `16:10` aspect ratio, and
+  `16 pt` spacing. Cards grow continuously within natural column bands, including three
+  columns; a new column appears only when every card can remain at least `300 pt` wide;
+  cards clamp at `360 pt` and retain residual row width. Screenshot pixels are
+  non-authoritative. Card actions remain accessible without hover, and no direct-connect
+  button or endpoint entry is added.
 - Automatic mode reads physical pixels for the screen where the session window opens and
   uses its maximum FPS. A defensible notch-safe built-in mode is preferred; otherwise Full
   Native is disclosed. A display move offers a new-session reconnect and never mutates the

openspec/changes/phase-3d-macos-native-mvp/proposal.md

@@ -10,8 +10,10 @@ control and transport boundaries.
 
 - Build the Apple-Silicon SwiftUI/AppKit client and platform-neutral Rust Streaming Core
   behind one sized/versioned C ABI (`P3D-001`–`P3D-031`).
-- Implement the reviewed native workspace, fixed preview cards, Favorites, search/sort,
-  settings, accessibility, and privacy-bounded desktop previews (`P3D-032`, `P3D-037`).
+- Implement the reviewed native workspace, bounded adaptive `300...360 pt` `16:10` preview
+  cards with `16 pt` spacing and natural columns, Favorites, search/sort, settings,
+  accessibility, and privacy-bounded desktop previews (`P3D-032`, `P3D-037`). Screenshot
+  pixels are behavioral evidence, not authoritative geometry constants.
 - Add feature-gated requested/effective display modes, Server-owned policy clamping,
   client display detection/disclosure, and explicit reconnect-on-display-change behavior
   (`P3D-033`–`P3D-034`).

openspec/changes/phase-3d-macos-native-mvp/specs/macos-workspace/spec.md

@@ -1,11 +1,11 @@
 ## ADDED Requirements
 
 ### Requirement: P3D-032 native desktop workspace
-The app SHALL expose Favorites, Desktops, Pools, and Settings in a native split workspace without Apps, Add PC, manual endpoint, or direct-provider surfaces. Desktop cards SHALL remain `328 x 205 pt`, use full-bleed previews and subtle readable metadata treatment, and adapt only the grid column count.
+The app SHALL expose Favorites, Desktops, Pools, and Settings in a native split workspace without Apps, Add PC, manual endpoint, or direct-provider surfaces. Desktop cards SHALL use a bounded adaptive `300...360 pt` width, `16:10` aspect ratio, and `16 pt` spacing; grow continuously within natural column bands including three columns; add a column only when every card remains at least the minimum; clamp at the maximum with residual row width; and use full-bleed previews with subtle readable metadata treatment. Screenshot pixels SHALL be non-authoritative.
 
 #### Scenario: Narrow and wide resize
 - **WHEN** the workspace moves between narrow, medium, and wide widths
-- **THEN** card geometry remains fixed, the column count changes, and text/actions do not overflow
+- **THEN** card width stays within `300...360 pt`, height preserves `16:10`, cards resize continuously within a column band, natural column transitions include three columns, and text/actions do not overflow
 
 #### Scenario: Accessible card actions
 - **WHEN** a card receives hover or keyboard focus

openspec/changes/phase-3d-macos-native-mvp/tasks.md

@@ -35,7 +35,7 @@
 
 ## 6. Workspace and Display UX
 
-- [ ] 6.1 Build the screenshot-backed Favorites/Desktops/Pools/Settings shell with fixed `328 x 205 pt` cards, adaptive columns, safe truncation, native focus/VoiceOver, and no Apps/Add-PC/direct endpoint surfaces
+- [ ] 6.1 Build the screenshot-backed Favorites/Desktops/Pools/Settings shell with bounded adaptive `300...360 pt` `16:10` cards, `16 pt` spacing, continuous within-band growth, natural minimum-triggered columns including three, maximum clamp/residual width, safe truncation, native focus/VoiceOver, and no Apps/Add-PC/direct endpoint surfaces; treat screenshot pixels as non-authoritative
 - [ ] 6.2 Add global and resource Automatic/preset/Custom/Full Native settings, physical-pixel/FPS detection, notch-safe disclosure, and requested/accepted projections with deterministic display fakes
 - [ ] 6.3 Add aspect-fit viewport math, letterbox pointer exclusion, display-move reconnect offer, and new-session/idempotency behavior tests
 - [ ] 6.4 Pass geometry/hierarchy/visibility/responsive/accessibility automation and bounded macOS 26/15/14 native-material review