Split graph into preview and explorer modes

docs/progress.md

@@ -7,6 +7,44 @@ Updated: 2026-02-22
 - After every sensible code/documentation change set, create a git commit as
   the last step so the next agent session can pick up from clean checkpoints.
 
+## Latest Milestone (2026-02-23): Relationship Graph Preview + Full-Screen Explorer
+
+Reworked the graph interaction model to be mobile-friendly on the dashboard and
+still support smooth pan/zoom exploration.
+
+- `lib/features/dashboard/dashboard_view.dart`
+  - refactored graph rendering into a shared canvas widget with two modes:
+    - `preview` (dashboard, scroll-first)
+    - `explorer` (full-screen, pan/zoom-first)
+  - dashboard graph card is now a scroll-safe preview:
+    - keeps node long-press for `Person Insights`
+    - disables pan/zoom interaction on the dashboard canvas
+    - adds explicit `Explore` / `Open Explorer` CTA button
+    - updated helper copy to clarify dashboard preview vs explorer behavior
+  - added full-screen `Relationship Graph` explorer page:
+    - pan enabled
+    - pinch-to-zoom enabled
+    - `Reset view` control
+    - same long-press-to-open-person-insights behavior
+    - shared legend display
+  - extracted shared graph helpers (legend + navigation helpers) to keep the
+    preview and explorer behavior consistent
+
+- `test/features/dashboard/dashboard_graph_interactions_test.dart`
+  - extended coverage to verify:
+    - dashboard preview renders `Explore` CTA
+    - explorer page opens from dashboard
+    - `Reset view` action is available and works
+    - returning to dashboard still works
+
+- UX decision captured in implementation
+  - dashboard remains scroll-first on mobile (no hidden pan-mode toggle)
+  - graph exploration happens in a dedicated full-screen context
+
+- Validation
+  - `flutter analyze` -> pass
+  - `flutter test` -> pass
+
 ## Latest Milestone (2026-02-22): Quick-Capture Dialog Regression Test (People)
 
 Added explicit widget-test coverage so controller lifecycle issues in quick