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/composer.tsx

@@ -2,6 +2,7 @@
 
 import { CheckIcon, CornerDownLeftIcon, SquareIcon, XIcon } from "lucide-react";
 import { cn } from "@/lib/utils";
+import { Hint } from "@/components/ui/hint";
 
 /**
  * The chat composer — content row ONLY (the persistent rounded shell lives in
@@ -108,13 +109,21 @@ export function Composer({
 					// pending on the next message; a side question now rides the
 					// acceptance as its note instead).
 				<div className="flex shrink-0 flex-col justify-end gap-1" data-testid="plan-verdict-buttons">
-					<button
-						type="button"
-						onClick={verdict.onAccept}
+					<Hint
+						// Enter accepts too — one press, either button (the user
+						// decided 2026-09-19; surface keys honestly per state).
+						label="Accept the plan"
+						binding="enter"
+						side="left"
+					>
+						<button
+							type="button"
+							onClick={verdict.onAccept}
 						className="flex h-[19px] items-center justify-center gap-1 rounded-md bg-emerald-600 px-3 text-xs font-medium text-white transition-colors hover:bg-emerald-500"
 					>
 						<CheckIcon className="size-3" /> Accept plan
 					</button>
+					</Hint>
 					<button
 						type="button"
 						onClick={verdict.onDecline}
@@ -124,10 +133,18 @@ export function Composer({
 					</button>
 				</div>
 			) : (
-				<button
-					type="submit"
-					aria-label={busy ? "Stop" : "Send"}
-					disabled={!busy && !canSend}
+				<Hint
+					// Per-state truth (tooltip wave): busy → the square STOPS the
+					// stream, and Esc aborts it too; otherwise Enter sends when the
+					// box has text.
+					label={busy ? "Stop the reply" : "Send"}
+					binding={busy ? "escape" : "enter"}
+					side="left"
+				>
+					<button
+						type="submit"
+						aria-label={busy ? "Stop" : "Send"}
+						disabled={!busy && !canSend}
 					className={cn(
 						"flex size-10 shrink-0 items-center justify-center rounded-[10px] transition-colors",
 						busy
@@ -137,6 +154,7 @@ export function Composer({
 				>
 					{busy ? <SquareIcon className="size-4" /> : <CornerDownLeftIcon className="size-5" />}
 				</button>
+				</Hint>
 			)}
 		</form>
 	);