Implement 10 UI/UX improvements and bug fixes

- Fix outdated Todoist task URL format (showTask -> app/task)
- Fix quick-add date defaulting to tomorrow in evening (client-side JS)
- Add tap-to-expand for task descriptions with checkbox completion
- Add visual differentiation: overdue (red), future (gray), today (normal)
- Sort tasks by urgency: overdue > today-timed > today-allday > future
- Keep completed tasks visible with strikethrough until refresh
- Add random Unsplash landscape background with content overlay
- Hide future tasks behind collapsible fold with count badge
- Unified modal menu for Quick Add + Bug Report (Ctrl+K shortcut)
- Click task title to edit description in modal

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

1 files changed, 6 insertions, 1 deletions

diff --git a/internal/models/atom.go b/internal/models/atom.go
index b3a384a..10d14d1 100644
--- a/internal/models/atom.go
+++ b/internal/models/atom.go
@@ -37,13 +37,14 @@ type Atom struct {
 	SourceIcon string // e.g., "trello-icon.svg" or emoji
 	ColorClass string // e.g., "border-blue-500"
 	IsOverdue  bool   // True if due date is before today
+	IsFuture   bool   // True if due date is after today
 	HasSetTime bool   // True if due time is not midnight (has specific time)
 
 	// Original Data (for write operations)
 	Raw interface{}
 }
 
-// ComputeUIFields calculates IsOverdue and HasSetTime based on DueDate
+// ComputeUIFields calculates IsOverdue, IsFuture, and HasSetTime based on DueDate
 func (a *Atom) ComputeUIFields() {
 	if a.DueDate == nil {
 		return
@@ -51,11 +52,15 @@ func (a *Atom) ComputeUIFields() {
 
 	now := time.Now()
 	today := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+	tomorrow := today.AddDate(0, 0, 1)
 
 	// Check if overdue (due date is before today)
 	dueDay := time.Date(a.DueDate.Year(), a.DueDate.Month(), a.DueDate.Day(), 0, 0, 0, 0, a.DueDate.Location())
 	a.IsOverdue = dueDay.Before(today)
 
+	// Check if future (due date is after today)
+	a.IsFuture = !dueDay.Before(tomorrow)
+
 	// Check if has set time (not midnight)
 	a.HasSetTime = a.DueDate.Hour() != 0 || a.DueDate.Minute() != 0
 }