feat(import): Packt parser and packt-video job

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/feature-import/test/packt.test.ts

@@ -0,0 +1,28 @@
+import { expect, test } from "bun:test";
+import { parsePacktIndex } from "../src/packt";
+import { packtIndexHtml } from "./fixtures";
+
+test("sections, clip titles and video files come from the structure", () => {
+  const p = parsePacktIndex(packtIndexHtml());
+  expect(p.title).toBe("Fake Docker Course");
+  expect(p.sections.map((s) => s.title)).toEqual(["Intro to Docker", "Images (Sample)"]);
+  expect(p.sections[0]!.clips).toEqual([
+    { number: 1, title: "Course Introduction", video: "videos/video1_1.mp4" },
+    { number: 2, title: "Docker & Friends", video: "videos/video1_2.mp4" },
+  ]);
+  expect(p.sections[1]!.clips[0]!.video).toBe("videos/video2_1.mp4");
+  expect(p.warnings).toEqual([]);
+});
+
+test("a section without a chapter block falls back to the overview list", () => {
+  const p = parsePacktIndex(packtIndexHtml({ dropChapter: 1 }));
+  expect(p.sections[0]!.clips.map((c) => [c.title, c.video])).toEqual([
+    ["Course Introduction", "videos/video1_1.mp4"],
+    ["Docker & Friends", "videos/video1_2.mp4"],
+  ]);
+  expect(p.warnings.join()).toContain("section 1 has no chapter block");
+});
+
+test("not a Packt page is a clear error", () => {
+  expect(() => parsePacktIndex("<html><h1>Hello</h1></html>")).toThrow(/no "Section N/);
+});