chore: remove código morto e padroniza scripts e CI

server/package.json

@@ -7,7 +7,8 @@
   "scripts": {
     "dev": "tsx src/index.ts",
     "build": "tsc -p tsconfig.json",
-    "start": "node dist/index.js"
+    "start": "node dist/index.js",
+    "typecheck": "tsc -p tsconfig.json --noEmit"
   },
   "dependencies": {
     "@fastify/cors": "^11.2.0",

server/src/index.ts

@@ -51,16 +51,6 @@ app.get("/health", async () => {
   return { status: "ok" };
 });
 
-const streamQuerySchema = z.object({
-  url: z.string().url("URL inválida").startsWith("http", "Apenas HTTP/HTTPS permitidos"),
-  // Offset opcional em bytes para retomar download.
-  offset: z
-    .string()
-    .regex(/^\d+$/)
-    .transform((value) => Number.parseInt(value, 10))
-    .optional(),
-});
-
 const downloadManager = new DownloadManager(agent);
 
 // Helper to get session from header

server/src/lib/DownloadManager.ts

@@ -25,7 +25,6 @@ export type DownloadTask = {
 // Map to store active task metadata in memory (for speed)
 // Ideally this would be persisted to JSON in the session folder for crash recovery
 const tasks = new Map<string, DownloadTask>();
-const agent = new Dispatcher(); // Should use the global agent from index.ts ideally, or pass it in.
 
 export class DownloadManager {