added obsidian note api

backend/handlers/handle_notes.go

@@ -0,0 +1,19 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func (store *Store) GetNote(ctx *gin.Context) {
+	path := ctx.Param("path")
+
+	note, err := store.Notes.GetNote(path)
+	if err != nil {
+		ctx.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
+		return
+	}
+
+	ctx.JSON(http.StatusOK, note)
+}