feat: add teaching asset prompts

internal/app/server.go

@@ -9,6 +9,7 @@ import (
 	"tutor/internal/learnermemory"
 	"tutor/internal/ontology"
 	"tutor/internal/progression"
+	"tutor/internal/teachingassets"
 	"tutor/internal/workflows"
 )
 
@@ -18,8 +19,9 @@ func NewServer(cfg config.Config) *http.Server {
 	memory := learnermemory.NewService(learnermemory.NewMemoryStore())
 	progress := progression.NewService(memory)
 	onto := ontology.NewService(ontology.NewMemoryStore())
+	assets := teachingassets.NewService(teachingassets.NewMemoryStore(), onto, cfg.ImageModelKey)
 	service := interview.NewService(store, runner, memory)
-	handler := httpapi.NewHandler(cfg, service, memory, progress, onto)
+	handler := httpapi.NewHandler(cfg, service, memory, progress, onto, assets)
 
 	return &http.Server{
 		Addr:    cfg.HTTPAddr,