progress: PassProgress carries the located drilldown (emit side)

Add LocatedRange + LocatedProgress to the progress contract and a 'located'
field on PassProgress, populated by the sweep + patch emitters from the
in-memory bad-range set + title. Move the range->chapter/time annotation
(locate_ranges, range_chapter, byte_offset_in_title) into the library so a
client renders the disc map + at-risk movie time straight from PassProgress
and never reads the mapfile itself — if the mapfile becomes a mapdb, this type
and its producer change, clients don't.

PassProgress is no longer Copy (located carries a Vec); it's built once per
throttled emission and passed by reference. Non-locating phases (verify,
extract) emit LocatedProgress::default(). Adds consts::MILLIS_PER_SEC.
Consumer-side wiring (autorip drops Mapfile::load) follows.

src/disc/extract.rs

@@ -686,6 +686,7 @@ fn report(opts: &ExtractOptions, done: u64, total: u64) -> bool {
                 bytes_bad_in_main_title: 0,
                 main_title_duration_secs: None,
                 main_title_size_bytes: None,
+                located: Default::default(),
             };
             p.report(&pp)
         }