chore

- application struct

internal/handlers/handlers.go

@@ -0,0 +1,14 @@
+package handlers
+
+import (
+	"context"
+	"spellbook/internal/models"
+)
+
+type Application interface {
+	AddSpell(ctx context.Context, spell models.Spell) error
+	GetSpell(ctx context.Context, spellName string) (models.Spell, error)
+	GetSpells(ctx context.Context, query models.SearchQuery) ([]models.Spell, error)
+	DeleteSpell(ctx context.Context, spellName string) error
+	CastSpell(ctx context.Context, spellCast models.SpellCast) (models.CastResult, error)
+}