migration start

tasks/native-business-logic-migration/05-implement-linux-data-models.md

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+# 05. Implement Linux data models (C/Vala)
+
+meta:
+  id: native-business-logic-migration-05
+  feature: native-business-logic-migration
+  priority: P0
+  depends_on: [native-business-logic-migration-02]
+  tags: [implementation, linux, data-models]
+
+objective:
+- Implement all data models in Vala/C following Linux/GNOME conventions
+
+deliverables:
+- feed-item.vala
+- feed.vala
+- feed-subscription.vala
+- search-result.vala
+- search-filters.vala
+- notification-preferences.vala
+- reading-preferences.vala
+- Supporting structs and enums
+
+tests:
+- Unit: Test JSON serialization with Gio
+- Unit: Test property accessors
+- Unit: Test equality methods
+
+acceptance_criteria:
+- All models properly structured
+- JSON serialization working
+- Memory management correct (no leaks)
+- GObject integration ready
+
+validation:
+- Run `meson test -C build`
+- Check with valgrind for memory leaks
+
+notes:
+- Use Vala objects for reference types
+- Use structs for value types
+- Follow GNOME HIG for naming