feat(world): consistent object-peek flow with companion close-up + walk animation

Every world object now routes through the same Hover → Peek modal → "Find
out more" → camera close-up on the companion flow. Trees (values) and
fruits (skills) gain KIND_CONFIG entries that mirror flower/mailbox/
telescope, so a click on a tree no longer shortcuts past the peek modal
into a wandering-Kira narration. When the lore panel is open Kira holds
position and turns to face the camera — same yaw-tween shape KiraNarrator
already uses, shared via a new KiraTurnState alias and a _isTalking gate
that the engine wander loop now respects via objectPeek.step === 'pickup'.

While walking she gets a gentle step-synced wing flap (~10°, half the
narration flap amplitude) reusing the same module-scope quaternion
scratch so no per-frame allocations land. The mohawk hair tufts are now
palette-driven (palette.body, tinted via the MB_HairTuft material name
so species switches recolor them) and graded clearly bigger→smaller from
front to back so the crest reads from any 3/4 angle.

Removed the floating n/threshold sprout badge — the count was distracting
and frequently mis-anchored; it now lives in the click-to-peek panel
only. Removed the procedural-flower _spawnPickup that lifted a copy of
the bloom onto Kira's chest during lore (read as a bug). Deleted the
now-unreachable TREE_/FLOWER_/FRUIT_NARRATION tables and their branches
in narrationFor() — those click paths route through ObjectPeek now and
narrationFor() only handles `kira` herself.

Bug fixes surfaced by code review: ObjectPeekController.open() now
clears _kiraTurn + _kiraRestYaw on entry so rapid open→close→open within
ZOOM_DURATION can't capture a tween-intermediate rotation as "rest" and
leave Kira stuck camera-facing; dispose() nulls step/_kiraTurn/
_kiraRestYaw so a late RAF tick can't keep wander frozen on a dead
controller; ObjectPeekController.update() keeps kira.facing in sync with
rotation.y during the turn so resuming wander doesn't snap.

Small polish: flower eyebrow flips from FLOWER → INTEREST to match the
VALUE / SKILL parallel; fruit peekAnchorLift drops from 0.5 → 0.35 so
the click-peek anchor lines up with the host-aware hover lift for bush
berries; _isTalking() drops its underscore to become a public method;
the empty sprouts-badge-layer DOM container + dead CSS selector are
gone.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: wondopamine