Give Miss Ring eyebrows, four more faces, and reactions that settle

[hahwul]

Miss Ring's expression vocabulary is five cells wide — the cavity — and three of the four axes in it were already spent. The fourth was sitting there unused: the lashes. mascot.cr has always documented that ´ on the left with ` on the right lifts both inner brows (the soft, open look) and that swapping them reads as stern; nothing ever varied them. Now Mascot.brows(pose) does, in four leanings — soft, furrowed, and one brow cocked each way. A whole expression axis for no new glyph, no new cell and no font-coverage risk, and :error finally gets the furrowed brows it always wanted.

Derived from the pose, never carried on Frame: a brow field would have been the third member of the folded-field class the wink and shake comments describe.

Faces: 11 → 15

▐´●u●`▌ idle     ▐´●o●´▌ wonder   ▐`^u●`▌ wry
▐´^u^`▌ smile    ▐´·_●´▌ hmm      ▐`●n●´▌ pout      ▐`×_×´▌ error (brows added)

One new mouth glyph, n — u turned over, same letterform, same x-height band, same fonts; the frown is the one shape the existing four cannot approximate. * eyes were tried and dropped: the asterisk sits at cap height in most monospace faces, the band the lashes occupy, which is exactly how the ˘ mouth shipped broken once already.

A reaction is an arc, not one frozen face

A mood is held 3–5s — 15 to 25 beats of an identical sprite — long enough that she reads as stuck rather than as reacting. She now hits the peak on the beat the result lands and settles into a quieter cousin of it 1.6s later: happy → smile, alert → hmm, error → flat. The peak staying at beat 0 is the half that matters (the settle is a tail on something the operator saw, never a different first impression), and it costs one extra frame change per note. It plays on calm too — "calm drops the rest" is about motion she starts on her own.

Gestures: 4 → 7, and 1/75s → 1/25s

The rate is sized against SLEEP_AFTER, not taste: she dozes after 90s, so at the old rate someone who stepped away saw a single gesture per waking spell.

Seven and not more, because the table is bounded by what the OPENING can show. The schedule is a pure hash of a beat counter that starts at 0 in every process, so the first firings are the same fixed sequence for every user of every build, and a spec pins that they cover the whole table. Ten firings fit in the sweep; enumerating the salt space against the real arithmetic:

scripts	salts (of 1024) that cover the opening
6	213
7	111
8	16
9	0

Salt 918 opens on a clean permutation — all seven inside three minutes — and stays within ±1.7% over 25k firings.

Verification

• Three mutation tests, each reding the spec that claims to guard it: revert the arc → the arc spec; salt back to 45 → the opening spec; brows out of the cavity → the face-uniqueness spec.
• Live in a real terminal (tmux, 80s): smile, wonder, pout and wry all rendered at width 1, no coverage fallback.
• Repaint budget after the retune: 98 changes in 449 beats (21.8%, ceiling 134). Winks 45 → 43 beats per 6000 — nothing specced that a wink ever appears until now, only where one may not, which is how raising the gesture rate could have taken them away silently.
• crystal spec: 8607 examples, 8 failures — all the known environmental Gori::Session port-bind set. crystal tool format --check src spec bench scripts clean.

Noted deviation

just check's ameba step gains 2 findings: Mascot.mouth (14) and .eyes (15) against MaxComplexity: 12. The tree is already at 659 findings on main, .ameba.yml's own comment blesses inherently-branchy dispatchers, and the file's SPELL OUT EVERY POSE doctrine is what requires the arms — a pose missing one falls through to the idle face and renders as a gesture that never visibly happens. Happy to convert the three tables to constant lookups instead if you'd rather hold the bar.

Everything is still expressed in the cavity, so placement = bar shows all of it. Prose updated in four places: the Motion settings hint, settings/companion.cr, the settings guide, and CHANGELOG.