refactor: unify runner lifecycles and weight residency (#1940)

src/extensions/generation_extension.h

@@ -49,7 +49,7 @@ struct GenerationExtension {
     virtual void get_param_tensors(std::map<std::string, ggml_tensor*>&) {}
     virtual void collect_loras(std::vector<ModelManager::LoraSpec>&) {}
     virtual void add_ignore_tensors(std::set<std::string>&) const {}
-    virtual void runner_done() {}
+    virtual void runner_end() {}
     virtual void reset_runtime_condition() {}
     virtual bool prepare_condition(GenerationExtensionConditionContext&) {
         return false;

src/extensions/photomaker_extension.cpp

@@ -175,9 +175,9 @@ struct PhotoMakerExtension : public GenerationExtension {
         ignore_tensors.insert("pmid.unet.");
     }
 
-    void runner_done() override {
+    void runner_end() override {
         if (pmid_model != nullptr) {
-            pmid_model->runner_done();
+            pmid_model->runner_end();
         }
     }