createLocalSession owns one chosen File at a time: it classifies the bytes,
creates the blob: URL only for a classified image or video, and reads it
through a real inspection controller with the local adapter. Replacement,
dispose, parent abort and pagehide each release the URL, the handle and the
record once; a released handle (and every copy) is foreign to the adapter, and
every await is fenced by a generation counter so a replaced read never
publishes. Empty, multiple and directory drops keep the previous selection.
Baseline entry for local-session.mjs; branch floors raised for the touched
inspection-state.mjs and local-inspection.mjs.
Vito Sansevero
9b9c64f71d