fix(ui): stop animating the pixel C — render it static everywhere

The pulse was a stylistic novelty that distracted users during the
quickstart wizard. PixelC now has no animation path; the existing
Throbber (block-pulse glyph) remains as the in-flight indicator.

Author: halfaipg

src/ui/FirstRunSetup.tsx

@@ -203,15 +203,13 @@ export function FirstRunSetup({ onDone, onQuit, store, authBase = DEFAULT_AUTH_B
 }
 
 /**
- * Branded header — animated pixel C + "codebase" wordmark. The C
- * pulses while the wizard is open (each row brightens in sequence)
- * so the boot screen feels alive without overwhelming.
+ * Branded header — static pixel C + "codebase" wordmark.
  */
-function BrandHeader({ animate = true }: { animate?: boolean }): React.ReactNode {
+function BrandHeader(): React.ReactNode {
 	return (
 		<Box flexDirection="row" marginBottom={1}>
 			<Box marginRight={2}>
-				<PixelC animate={animate} />
+				<PixelC />
 			</Box>
 			<Box flexDirection="column" justifyContent="center">
 				<Text bold color="cyan">

src/ui/PixelC.tsx

@@ -1,65 +1,35 @@
 import { Box, Text } from "ink";
-import { useEffect, useState } from "react";
 
 /**
- * Animated pixel-C brand mark. Mirrors `web/public/favicon.svg`:
+ * Static pixel-C brand mark. Mirrors `web/public/favicon.svg`:
  * 5-row × 4-col grid, 9 filled pixels (3 top + 3 left + 3 bottom).
  * Each SVG pixel renders as two block chars wide so the C reads
  * proportionally in a 1:2 cell-ratio terminal.
- *
- * When `animate` is false, renders a static cyan C — used in the
- * wizard header and OAuth-running screen as a brand mark.
- *
- * When `animate` is true, scans a "bright" row top → bottom through
- * the C every cycle. Subtle but unmistakably alive — gives the agent
- * a heartbeat during long thinking turns without burning attention.
  */
 
 const FILL = "██";
 const GAP = "  ";
 
 interface PixelCProps {
-	animate?: boolean;
 	color?: string;
-	dimColor?: string;
-	intervalMs?: number;
 }
 
-interface RowSpec {
-	/** The textual content of the row. */
-	text: string;
-	/** Which animation step (0..4) this row corresponds to. */
-	step: number;
-}
-
-const ROWS: readonly RowSpec[] = [
-	{ text: `${GAP}${FILL}${FILL}${FILL}`, step: 0 },
-	{ text: FILL, step: 1 },
-	{ text: FILL, step: 2 },
-	{ text: FILL, step: 3 },
-	{ text: `${GAP}${FILL}${FILL}${FILL}`, step: 4 },
+const ROWS: readonly string[] = [
+	`${GAP}${FILL}${FILL}${FILL}`,
+	FILL,
+	FILL,
+	FILL,
+	`${GAP}${FILL}${FILL}${FILL}`,
 ];
-const STEPS = ROWS.length;
-
-export function PixelC({ animate = false, color = "cyan", dimColor = "gray", intervalMs = 180 }: PixelCProps) {
-	const [activeStep, setActiveStep] = useState(0);
-
-	useEffect(() => {
-		if (!animate) return;
-		const id = setInterval(() => setActiveStep((s) => (s + 1) % STEPS), intervalMs);
-		return () => clearInterval(id);
-	}, [animate, intervalMs]);
 
+export function PixelC({ color = "cyan" }: PixelCProps) {
 	return (
 		<Box flexDirection="column">
-			{ROWS.map((row) => {
-				const rowColor = !animate ? color : row.step === activeStep ? color : dimColor;
-				return (
-					<Text key={`pixc-${row.step}`} bold color={rowColor}>
-						{row.text}
-					</Text>
-				);
-			})}
+			{ROWS.map((text, i) => (
+				<Text key={`pixc-${i}`} bold color={color}>
+					{text}
+				</Text>
+			))}
 		</Box>
 	);
 }

src/ui/Welcome.tsx

@@ -62,7 +62,7 @@ export function Welcome({ modelName, source, cwd, resumedFrom }: WelcomeProps) {
 		<Box flexDirection="column" paddingX={1} marginBottom={1}>
 			<Box flexDirection="row">
 				<Box marginRight={2}>
-					<PixelC animate={false} />
+					<PixelC />
 				</Box>
 				<Box flexDirection="column" justifyContent="center">
 					<Text bold color="cyan">