Replaces the create-a-new-Term resize story (old 7.4) with a synchronous update transaction: reallocate renderer state in place within the existing wasm instance and linear memory, never re-instantiating over shared memory, so a TermInfo attachment survives resize. Accepts a discriminated options bag: explicit dimensions or an event array (resize events coalesce last-wins; non-resize events ignored). The event shape is structural, deliberately assignable from input's ResizeEvent without introducing a renderer->input dependency (11.4). After a non-no-op update the next render is a complete redraw, reusing the 7.6 generation-invalidation mechanism. Growth-only memory (high-water mark on downsize) is documented as accepted behavior. Output views are invalidated by update() since memory.grow detaches buffers; 7.3's validity window is widened accordingly.