Production tooltips: styled tooltips everywhere, shortcuts surfaced, dev-speak culled

Owner-approved full pass (tooltip wave, 2026-09-25). Mechanism: icon/pill
controls ride the styled Radix tooltip via a new Hint composition
(components/ui/hint.tsx) — the shared primitive adopted as-is, no
restyling; the shortcut appends as an em-dash suffix off the LIVE registry
(a rebind in Settings → Keyboard changes the suffix): "Dictate — ⌘D".
Surface-owned keys (Esc closes, Enter submits) ride a raw binding prop.
Native title= stays only for truncation-reveals (dock spans, the rename
field) and menu-interior abbreviations (MenuShell untouched). One
em-dash pattern; per-state truth on the send square (busy = "Stop the
reply — Esc", idle = "Send — ↵"), Enter on the plan verdict's accept,
"Stop dictation (Esc)" kept verbatim per the owner's flag.

Copy: the dev-speak cull — no pipeline/prober/tier/wave vocabulary
anywhere a user reads. New pins in tests/tooltip-mechanism.test.tsx
(hintText composition, asChild no-wrapper-DOM, the auto-update hint
constant); dock truncation titles pinned native; graph-chrome + settings
pins updated to the new copy.

Live-verified on :3001 — 12.6ms hover appearance (no native 1s lag);
glyphs render on every suffixed surface (⌘D, ⌘K, ⌘⇧F, ⌘,, ⌘B, F2, ↵,
Esc); per-page probes confirm Settings entry, Home logo, session search,
Start session, Close sidebar, model + thinking pills, stats summary,
rename title, plan chip, coverage ring, send square, cost button, node
search (⌘F), graph gear, settings close (Close — Esc), keyboard section
"Fixed — part of this screen", auto-update hint, light-mode "Coming
soon", the three slot rosters, graph-tools hint. Esc still closes the
settings dialog.

components/ui/hint.tsx

@@ -0,0 +1,54 @@
+"use client"
+
+import * as React from "react"
+import { Tooltip, TooltipProvider, TooltipTrigger, TooltipContent } from "@/components/ui/tooltip"
+import { bindingForAction, formatBinding, type KeyAction } from "@/src/core"
+
+/**
+ * The tooltip composition for icon and pill controls (tooltip wave, owner
+ * 2026-09-25). The styled Radix tooltip (ui/tooltip.tsx, adopted as-is —
+ * no restyling) carries the label, with the control's shortcut appended as
+ * an em-dash suffix when it has one ("Dictate — ⌘D").
+ *
+ * The binding is override-aware: pass `action` for registry shortcuts (a
+ * user rebind in Settings → Keyboard changes the suffix live), or
+ * `binding` for surface-owned keys with no registry entry ("escape" for a
+ * dialog close, "enter" for a form submit).
+ *
+ * children must be a single element able to take a ref (TooltipTrigger
+ * asChild merges onto it — no wrapper DOM, no layout shift).
+ */
+
+interface HintProps {
+	label: string
+	/** Registry action whose LIVE binding is shown (override-aware). */
+	action?: KeyAction
+	/** Surface-owned binding ("escape", "enter") — keys the registry
+	 *  deliberately doesn't dispatch (Esc closes the dialog itself; Enter
+	 *  submits the form the button belongs to). */
+	binding?: string
+	side?: "top" | "bottom" | "left" | "right"
+	children: React.ReactElement
+}
+
+/** The composition itself, pure — "Dictate" + ⌘D → "Dictate — ⌘D". Exported
+ *  for the mechanism pins (tests/tooltip-mechanism.test.tsx). */
+export function hintText(label: string, action?: KeyAction, binding?: string): string {
+	const live = action
+		? formatBinding(bindingForAction(action))
+		: binding
+			? formatBinding(binding)
+			: ""
+	return live ? `${label} — ${live}` : label
+}
+
+export function Hint({ label, action, binding, side = "top", children }: HintProps) {
+	return (
+		<TooltipProvider>
+			<Tooltip>
+				<TooltipTrigger asChild>{children}</TooltipTrigger>
+				<TooltipContent side={side}>{hintText(label, action, binding)}</TooltipContent>
+			</Tooltip>
+		</TooltipProvider>
+	)
+}