Audit round 4-6: disc parsing, extents, codecs and drive faults

Squashed from 12 commits. Every fix was proven red-before-green and killed by a
mutation; the reasoning for each is in the private audit record.

UDF and extents
  Honour ICB types rather than assuming a Short AD, so an AD-type-3 directory
  is no longer decoded from FID bytes into a silently empty listing. Carry the
  ECMA-167 recorded flag through to the resolvers: an allocated-but-never-
  written extent used to reach the read plan as ordinary content and splice
  undefined sectors into the rip. file_extents now refuses such a file, and
  only when the hole actually occupies byte space — a zero-length one displaces
  nothing, and refusing on it dropped whole titles off discs that ripped
  correctly. Type-2 sparse extents are kept alongside type-1; they were falling
  into a catch-all that exited the descriptor loop and returned a truncated
  list as complete. merge_ranges no longer claims a sector neither input
  covered. A short skip or an over-long AD chain errors instead of truncating.

HD-DVD and Blu-ray scanning
  Bound the XPL nesting depth, title count, clips and chapters per title, and
  memoize the clip-name fallback probe — four separate amplification axes, each
  of which alone left the worst case unbounded. The clip and title caps are 512,
  ~10x any retail disc, and a test pins the product of cap and probe budget.
  The scan is cancellable: it returned Ok with titles carrying no streams when
  halted, presenting a cancelled scan as a successful one. A clip dropped for an
  unrecorded extent now says so.

Codecs and muxing
  Resume a held E-AC-3 access unit rather than rescanning from its first frame,
  and drop it on a discontinuity — a stale hold indexed past the end of the new
  buffer. Map every ISO 639-1 code instead of collapsing fifteen languages to
  und. Correct the DVD palette order. Detect a skip past EOF.

Drive and I/O
  Classify dead-bus faults so the wedged-drive path can see them; a catch-all
  arm had been flattening the variants before the classifier ran. A prefetch
  producer that dies now reports SourceTerminated instead of Ok(0), which the
  reader legitimately read as a short read and zero-filled — a whole title
  could be fabricated and the pass reported complete.

Also: charge Ok(0) reads to the CSS crack budget, drop the unreachable soft
re-crack, and send disc-derived strings to logs through the debug formatter so
a crafted label cannot paint an operator's terminal.

src/mux/resolve.rs

@@ -1521,8 +1521,11 @@ fn forensic_clip_extents(
         tracing::warn!(target: "freemkv::keysource", "fmts: more than one forensic clip on the disc — segment byte space is ambiguous");
         return Ok(None);
     }
+    // Addressing variant: these extents are a byte-space map for the forensic
+    // segment table (`clip_byte_to_lba`), not a read plan — an unrecorded
+    // extent must stay in place here or every later segment offset shifts.
     let exts: Vec<crate::disc::Extent> = udf
-        .file_extents(reader, &format!("/BDMV/STREAM/{name}"))
+        .file_extents_addressing(reader, &format!("/BDMV/STREAM/{name}"))
         .map_err(io::Error::from)?
         .into_iter()
         .filter(|&(lba, sectors)| lba > 0 && sectors > 0)
@@ -4440,7 +4443,7 @@ mod tests {
                             "00001.fmts",
                             20,
                             FMTS_CONTENT_LBA - PART_START,
-                            FMTS_CONTENT_SECTORS * 2048,
+                            u64::from(FMTS_CONTENT_SECTORS) * 2048,
                             true,
                         )],
                         subdirs: Vec::new(),