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, 0 insertions, 6 deletions

diff --git a/internal/api/interfaces.go b/internal/api/interfaces.go
index 2419707..33bef59 100644
--- a/internal/api/interfaces.go
+++ b/internal/api/interfaces.go
@@ -26,11 +26,6 @@ type TrelloAPI interface {
 	UpdateCard(ctx context.Context, cardID string, updates map[string]interface{}) error
 }
 
-// ObsidianAPI defines the interface for Obsidian operations
-type ObsidianAPI interface {
-	GetNotes(ctx context.Context, limit int) ([]models.Note, error)
-}
-
 // PlanToEatAPI defines the interface for PlanToEat operations
 type PlanToEatAPI interface {
 	GetUpcomingMeals(ctx context.Context, days int) ([]models.Meal, error)
@@ -42,6 +37,5 @@ type PlanToEatAPI interface {
 var (
 	_ TodoistAPI   = (*TodoistClient)(nil)
 	_ TrelloAPI    = (*TrelloClient)(nil)
-	_ ObsidianAPI  = (*ObsidianClient)(nil)
 	_ PlanToEatAPI = (*PlanToEatClient)(nil)
 )