feat: remove Todoist integration entirely

Native tasks (native_tasks table) fully replace Todoist. All Todoist
API code, store functions, handlers, routes, templates, and tests have
been removed. Migration 021 drops the now-unused tasks cache table.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 0 insertions, 30 deletions

diff --git a/internal/models/atom.go b/internal/models/atom.go
index 967b489..9f40de6 100644
--- a/internal/models/atom.go
+++ b/internal/models/atom.go
@@ -10,7 +10,6 @@ type AtomSource string
 
 const (
 	SourceTrello      AtomSource = "trello"
-	SourceTodoist     AtomSource = "todoist"
 	SourceMeal        AtomSource = "plantoeat"
 	SourceGTasks      AtomSource = "gtasks"
 	SourceClaudomator AtomSource = "claudomator"
@@ -74,35 +73,6 @@ func (a *Atom) ComputeUIFields() {
 	a.HasSetTime = dueInTZ.Hour() != 0 || dueInTZ.Minute() != 0
 }
 
-// TaskToAtom converts a Todoist Task to an Atom
-func TaskToAtom(t Task) Atom {
-	// Todoist priority: 1 (normal) to 4 (urgent)
-	// Keep as-is since it already matches our 1-4 scale
-	priority := t.Priority
-	if priority < 1 {
-		priority = 1
-	}
-	if priority > 4 {
-		priority = 4
-	}
-
-	return Atom{
-		ID:          t.ID,
-		Title:       t.Content,
-		Description: t.Description,
-		Source:      SourceTodoist,
-		Type:        TypeTask,
-		URL:         t.URL,
-		DueDate:     t.DueDate,
-		CreatedAt:   t.CreatedAt,
-		Priority:    priority,
-		SourceIcon:  "🔴", // Red circle for Todoist
-		ColorClass:  "border-red-500",
-		IsRecurring: t.IsRecurring,
-		Raw:         t,
-	}
-}
-
 // NativeTaskToAtom converts a native doot Task to an Atom.
 func NativeTaskToAtom(t Task) Atom {
 	priority := t.Priority