fix(collector): restore direct DLC drag imports

Resolve dropped file paths through Electron webUtils, send dragged DLC containers directly to Downloads, and keep explicit collector imports bounded so metadata enrichment cannot leave the interface permanently busy.

tests/collector-inspection.test.ts

@@ -100,6 +100,21 @@ describe("collector inspection", () => {
     }));
   });
 
+  it("returns visible unknown links when metadata analysis reaches its deadline", async () => {
+    const link = "https://1fichier.com/?slow123";
+    const result = await inspectCollectorText({ rawText: link, addedAt: 3200 }, defaultSettings(), {
+      checkOneFichier: async () => new Promise(() => {}),
+      inspectionTimeoutMs: 10
+    });
+
+    expect(result.packages).toHaveLength(1);
+    expect(result.packages[0].links).toEqual([expect.objectContaining({
+      url: link,
+      availability: "unknown",
+      status: "unknown"
+    })]);
+  });
+
   it("resolves DDownload metadata before grouping without using a debrid account", async () => {
     const link = "https://ddownload.com/ntwscdw62gyb";
     let genericResolverCalls = 0;