Reframe (per PLN): we split the MASTERED set into shippable units (tracks / EP /
gapless BC album); we don't touch the gig recording. Source is swappable (online
streaming_final today; a re-rendered master can drop in).

- align: measure proxy→master offset by xcorr of energy envelopes (proxy from
  stemmap, master decoded). Coarse 2s + fine 0.25s + two-half drift check.
  Result: master_t = proxy_t + 2.75s, stable across halves (peak 0.69-0.80) —
  confirms the manifest's calibrated +3. (Caught + fixed a sign bug on first pass:
  measure, then verify your own number.) Per-source: the +3 was the gig-GT, this
  is the stem-render; same ballpark, but measured not assumed.
- frag: audition cut variants for a boundary from the real master — context,
  standalone clean edges (trim bleed + fade), and xf_direct (WAP tail acrossfades
  into 'Plosive head, the bordel dropped = PLN's 'crossfade direct de 0326 a 0345').
  Skip window auto-set from the v2 bleed detector. Each render self-verified non-silent.
- WAP->'Plosive (cut4) rendered: 5 frags @ /frags/ for phone audition.

Next: split (hybrid gapless-exact + standalone-fade outputs) once PLN picks edges.