v3: the docs follow deno doc's grain — the index page was a hand-kept list of some 250 links into deno doc's output layout (./api/main.ts/index.html), policed by mod.test.ts; deno doc has no module index of its own beyond all_symbols.html, which lists every module by path with its summary. mod.ts is now a prose overview of the three parts and their layers, linking that list once, and mod.test.ts is gone. Re-exporting everything from mod.ts, as deno doc's tutorial does for a library, was tried and doesn't fit: export * drops the 18 routers (default exports) and makes 17 names ambiguous, and deno 2.9 renders export * as namespaces with the root's module doc and nested ones empty, losing every module doc. A router's page showed one line: its endpoint list sat on the default symbol, whose summary was cut at the colon introducing it; the list is now the module doc of all 18 routers, and the router's JSDoc says so. 22 summaries ended in a colon (the routers, BandcampPlayer, migration 0016, useDumpListSync, usePlaylistListSync) and read cut short wherever deno doc shows a first paragraph alone; they end in a full stop, doc-lint.ts now fails on a colon summary, and the README states the rule. No behaviour changes; 204 backend tests pass.

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

api/routes/thumbnails.ts

@@ -1,6 +1,12 @@
 /**
  * The route serving dumps' thumbnails, generated with ffmpeg where needed.
  *
+ * - `GET /api/thumbnails/:dumpId?token=&v=` — public; a private dump's
+ *   thumbnail needs its poster's media `token`. Serves the dump's custom
+ *   thumbnail, else one made from its upload: a still of a video, or a
+ *   scaled-down copy of an image (the image itself when none can be made); 404
+ *   when there is neither.
+ *
  * @module
  */
 
@@ -17,15 +23,7 @@ import { serveUploadedFile } from "../lib/upload.ts";
 import { DUMPS_DIR, THUMBNAILS_DIR } from "../config.ts";
 import { authenticateMedia } from "../lib/auth.ts";
 
-/**
- * The route serving dumps' thumbnails:
- *
- * - `GET /api/thumbnails/:dumpId?token=&v=` — public; a private dump's
- *   thumbnail needs its poster's media `token`. Serves the dump's custom
- *   thumbnail, else one made from its upload: a still of a video, or a
- *   scaled-down copy of an image (the image itself when none can be made); 404
- *   when there is neither.
- */
+/** The router serving the endpoints the module doc lists. */
 const router: Router = new Router({ prefix: "/api/thumbnails" });
 
 /**