feat(erase-object): optional high-quality diffusion inpainting bundle (#566)

Adds an opt-in High Quality mode to the Object Eraser, backed by a new inpaint-hq feature bundle (Stable Diffusion 1.5 inpainting via diffusers). The default fast LaMa path is unchanged. Both arch archives are published to deepsafe/feature-bundles and the manifest carries their real sha256/sizes.

Verified end to end: a fresh container pulls the bundle from HuggingFace, checksum-verifies it, extracts torch/diffusers plus the fp16 model, and the HQ sidecar erases a large object with a plausible fill.

Refs #141

tests/e2e-docker/feature-lifecycle.spec.ts

@@ -129,12 +129,13 @@ test.describe("Feature listing baseline", () => {
     const res = await request.get(`${API}/api/v1/features`, { headers });
     expect(res.ok()).toBeTruthy();
     const data = (await res.json()) as FeatureResponse;
-    expect(data.bundles).toHaveLength(7);
+    expect(data.bundles).toHaveLength(8);
 
     const expectedIds = [
       "background-removal",
       "face-detection",
       "object-eraser-colorize",
+      "inpaint-hq",
       "upscale-enhance",
       "photo-restoration",
       "ocr",