Fix memory leak in dev server

dist/utils/import-fresh.d.ts

@@ -1,7 +1,24 @@
 /**
- * Dev: bypass Bun's module registry so rebuilt files are picked up.
- * Prod: import by stable path so each module is loaded (and kept) once.
- * A unique `?t=` per call creates a new, never-evicted module record, so
- * using it in production leaks memory on every request.
+ * Imports a module by its stable path.
+ *
+ * Dev: when the file changed since it was last imported, its registry
+ * entry is evicted first so the new version is evaluated and the old one
+ * can be garbage collected. A cache-busting `?t=` query would instead
+ * create a new, never-evicted module record on every call.
+ *
+ * Prod: plain import, so each module is loaded (and kept) once.
  */
 export default function importFresh<T = any>(file_path: string): Promise<T>;
+/**
+ * Drops a module from Bun's registry so its memory can be reclaimed and the
+ * next import re-evaluates it. Only the module itself is evicted, not the
+ * modules it imports.
+ */
+export declare function evictModule(file_path: string): void;
+/**
+ * Evicts every registry entry under `dir` whose file no longer exists. Bundle
+ * outputs (entries and shared chunks) are content-hashed and esbuild deletes
+ * the superseded ones on rebuild, so a missing file means no current module
+ * imports it anymore.
+ */
+export declare function evictDeletedModules(dir: string): void;