v0.1.7

Added

• The composer keeps its place, and its footer stops flickering. A latched
  viewport floor (latched_viewport_floor) grows the frame by exactly what
  the pre-computed dock estimate short-cuts mid-stream, and the footer gauge
  paints on the frame's last row (footer_paint_row) instead of being pushed
  past the bottom and skipped for that frame — Ω 223.8k/300k and the pad band
  under it now ride out a mid-turn text wrap. Shrinking the viewport keeps its
  top edge fixed, so no blank scrollback is painted behind the box.

• Bare Enter continues. While the last turn is resumable, the empty input box
  shows a dim Please continue… ghost hint and submitting empty text continues
  the conversation; a box with text (or an attachment) still submits it.

• Streaming rows hold orphan punctuation. A lone ./,/? arriving as its own
  delta is held until the next chunk says whether it belongs to it, then
  released glued to what follows — no more a frozen lone-. transcript row at
  an interrupt.

Fixed

• ~/.gray/provider_models.json no longer accepts loopback base URLs. A local
  server's port changes on every start (and a unit test's is random) and
  nothing evicted old keys, so every one was a permanent dead entry — 43 had
  piled up. Remote providers still persist, so /model still paints its cached
  list instantly.

• The provider model-list fetch no longer rides the ambient Tokio runtime: a
  background refresh that outlives REPL shutdown used to kill its thread with
  Tokio 1.x context ... being shutdown. It runs in its own short-lived
  current-thread runtime.

• Binary detection in the read guard no longer magic-sniffs the first bytes —
  the NUL check decides — and a regular-file-to-FIFO swap between the guard and
  the open is now caught by an O_NONBLOCK open instead of hanging the turn.

Changed

• Self-update hashing uses the sha2 crate that is already a dependency
  instead of shelling out to sha256sum/shasum and writing the tarball to a
  temp file.

• gray-markdown drops the incremental open-block cache (its measured cost was
  maintenance, not reads) and the LaTeX-to-unicode stack — raw TeX shows as
  typed. Unicode repair uses a minimal Latin accent table instead of the
  unicode-normalization crate, so the dep count holds.

• The shell lane is one type carrying the live child, its process-group guard,
  the output pump and the liveness clock, instead of four parallel ones.

Chore

• The internal working journal (superpowers plans, study notes, session
  records) is untracked from the public repo; reference and product docs stay
  tracked.