feat(videos): add Terminal component with typing + output animation

apps/videos/src/components/Terminal.tsx

@@ -0,0 +1,94 @@
+import type React from "react";
+import { interpolate, spring, useCurrentFrame, useVideoConfig } from "remotion";
+import { AppWindow } from "@/components/AppWindow";
+import { TypeWriter } from "@/components/TypeWriter";
+import { SPRING } from "@/lib/motion";
+
+interface OutputLine {
+  text: string;
+  color: string;
+  delay: number;
+}
+
+export const Terminal: React.FC<{
+  command: { text: string; color: string }[];
+  commandStartFrame: number;
+  commandSpeed?: number;
+  outputLines?: OutputLine[];
+  outputStartFrame: number;
+  outputStagger?: number;
+  width?: number;
+  height?: number;
+  style?: React.CSSProperties;
+  enterFrame?: number;
+}> = ({
+  command,
+  commandStartFrame,
+  commandSpeed = 2,
+  outputLines = [],
+  outputStartFrame,
+  outputStagger = 3,
+  width = 800,
+  height = 450,
+  style,
+  enterFrame = 0,
+}) => {
+  const frame = useCurrentFrame();
+  const { fps } = useVideoConfig();
+
+  const enterProgress = spring({
+    frame: frame - enterFrame,
+    fps,
+    config: SPRING.snappy,
+  });
+
+  const translateY = interpolate(enterProgress, [0, 1], [height + 50, 0]);
+  const opacity = interpolate(enterProgress, [0, 1], [0, 1]);
+
+  return (
+    <div
+      style={{
+        transform: `translateY(${translateY}px)`,
+        opacity,
+        ...style,
+      }}
+    >
+      <AppWindow title="Terminal" width={width} height={height}>
+        <div style={{ padding: "16px 20px" }}>
+          <div style={{ display: "flex", alignItems: "center" }}>
+            <span style={{ color: "#8b949e", fontSize: 16, fontFamily: "monospace" }}>$ </span>
+            <TypeWriter
+              segments={command}
+              startFrame={commandStartFrame}
+              speed={commandSpeed}
+              style={{ fontSize: 16 }}
+            />
+          </div>
+
+          {outputLines.map((line, i) => {
+            const lineFrame = outputStartFrame + i * outputStagger;
+            const lineOpacity = interpolate(frame, [lineFrame, lineFrame + 6], [0, 1], {
+              extrapolateLeft: "clamp",
+              extrapolateRight: "clamp",
+            });
+
+            return (
+              <div
+                key={`${line.text}-${i}`}
+                style={{
+                  marginTop: i === 0 ? 12 : 4,
+                  fontSize: 16,
+                  fontFamily: "monospace",
+                  color: line.color,
+                  opacity: lineOpacity,
+                }}
+              >
+                {line.text}
+              </div>
+            );
+          })}
+        </div>
+      </AppWindow>
+    </div>
+  );
+};