Implement architectural refactors for feature requests #28, #30, #31, #33-38

Phase 1: Bugs as First-Class Atoms (#28)
- Add resolved_at column to bugs table (migration 007)
- Add GetUnresolvedBugs(), ResolveBug(), UnresolveBug() store methods
- Include bugs in Tasks tab via BugToAtom() with completion toggle
- Add unit tests for bug resolution

Phase 2: Timeline as Default + Enhancements (#35, #37)
- Change default tab from tasks to timeline
- Add IsCompleted, DaySection, Source fields to TimelineItem
- Group timeline items by today/tomorrow/later sections
- Add completion checkboxes for tasks/cards, grey completed items
- Collapse tomorrow/later sections by default

Phase 3: Shopping Quick-Add (#33)
- Add user_shopping_items table (migration 008)
- Add SaveUserShoppingItem(), GetUserShoppingItems(), ToggleUserShoppingItem()
- Add HandleShoppingQuickAdd() and HandleShoppingToggle() handlers
- Add quick-add form to shopping tab

Phase 4: Mobile Swipe Navigation (#38)
- Add touch event handlers for swipe left/right tab switching
- 50px threshold triggers tab change

Phase 5: Consistent Background Opacity (#30)
- Add CSS variables for panel/card/input/modal backgrounds
- Update templates to use consistent opacity classes

Phase 6: Tab Reorganization (#37)
- Reorganize tabs: Timeline, Shopping, Conditions as main tabs
- Move Tasks, Planning, Meals under Details dropdown

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/internal/models/timeline.go b/internal/models/timeline.go
index 4a619fa..469cce4 100644
--- a/internal/models/timeline.go
+++ b/internal/models/timeline.go
@@ -11,6 +11,14 @@ const (
 	TimelineItemTypeEvent TimelineItemType = "event"
 )
 
+type DaySection string
+
+const (
+	DaySectionToday    DaySection = "today"
+	DaySectionTomorrow DaySection = "tomorrow"
+	DaySectionLater    DaySection = "later"
+)
+
 type TimelineItem struct {
 	ID           string           `json:"id"`
 	Type         TimelineItemType `json:"type"`
@@ -20,4 +28,26 @@ type TimelineItem struct {
 	Description  string           `json:"description,omitempty"`
 	URL          string           `json:"url,omitempty"`
 	OriginalItem interface{}      `json:"-"`
+
+	// UI enhancement fields
+	IsCompleted bool       `json:"is_completed"`
+	DaySection  DaySection `json:"day_section"`
+	Source      string     `json:"source"` // "todoist", "trello", "plantoeat", "calendar"
+}
+
+// ComputeDaySection sets the DaySection based on the item's time
+func (item *TimelineItem) ComputeDaySection(now time.Time) {
+	today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+	tomorrow := today.AddDate(0, 0, 1)
+	dayAfterTomorrow := today.AddDate(0, 0, 2)
+
+	itemDay := time.Date(item.Time.Year(), item.Time.Month(), item.Time.Day(), 0, 0, 0, 0, item.Time.Location())
+
+	if itemDay.Before(tomorrow) {
+		item.DaySection = DaySectionToday
+	} else if itemDay.Before(dayAfterTomorrow) {
+		item.DaySection = DaySectionTomorrow
+	} else {
+		item.DaySection = DaySectionLater
+	}
 }