Remove Obsidian integration for public server deployment

Obsidian relied on local filesystem access which is incompatible with
public server deployment. This removes all Obsidian-related code including:

- API client and interface
- Store layer methods (SaveNotes, GetNotes, SearchNotes)
- Handler methods and routes
- UI tab and templates
- Configuration fields
- Related tests

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

1 files changed, 3 insertions, 25 deletions

diff --git a/internal/models/atom.go b/internal/models/atom.go
index 47695d9..fe40962 100644
--- a/internal/models/atom.go
+++ b/internal/models/atom.go
@@ -5,10 +5,9 @@ import "time"
 type AtomSource string
 
 const (
-	SourceTrello   AtomSource = "trello"
-	SourceTodoist  AtomSource = "todoist"
-	SourceObsidian AtomSource = "obsidian"
-	SourceMeal     AtomSource = "plantoeat"
+	SourceTrello  AtomSource = "trello"
+	SourceTodoist AtomSource = "todoist"
+	SourceMeal    AtomSource = "plantoeat"
 )
 
 type AtomType string
@@ -92,27 +91,6 @@ func CardToAtom(c Card) Atom {
 	}
 }
 
-// NoteToAtom converts an Obsidian Note to an Atom
-func NoteToAtom(n Note) Atom {
-	// Notes don't have priority, default to low (1)
-	priority := 1
-
-	return Atom{
-		ID:          n.Path, // Use path as unique ID
-		Title:       n.Title,
-		Description: n.Content,
-		Source:      SourceObsidian,
-		Type:        TypeNote,
-		URL:         "",     // Obsidian notes don't have URLs
-		DueDate:     nil,    // Notes typically don't have due dates
-		CreatedAt:   n.Modified, // Use modified time as created time
-		Priority:    priority,
-		SourceIcon:  "📝", // Memo emoji for notes
-		ColorClass:  "border-purple-500",
-		Raw:         n,
-	}
-}
-
 // MealToAtom converts a PlanToEat Meal to an Atom
 func MealToAtom(m Meal) Atom {
 	// Meals don't have priority, default to low (1)