fix: make local Docker build & run work end-to-end (labextension build + numpy)

Dockerfile

@@ -33,6 +33,9 @@ FROM build-base AS labext-builder
 # Copy manifests first so dependency install is cacheable between source edits.
 WORKDIR /src/labextension
 COPY labextension/.yarnrc.yml labextension/package.json labextension/pyproject.toml labextension/tsconfig.json labextension/install.json ./
+# Yarn resolutions reference a local patch (license-webpack-plugin fix); it must
+# exist before `jlpm install` resolves dependencies.
+COPY labextension/.yarn ./.yarn
 RUN jlpm install
 
 COPY labextension/style ./style
@@ -52,10 +55,13 @@ WORKDIR /app
 
 COPY --from=judge-builder /tmp/wheels /tmp/wheels
 COPY --from=labext-builder /tmp/wheels /tmp/wheels
+# torch >=2 treats NumPy as optional; without it `import torch` prints a
+# "Failed to initialize NumPy" warning and tensor<->numpy interop is disabled.
 RUN pip install --no-cache-dir --upgrade pip && \
     pip install --no-cache-dir \
       torch --index-url https://download.pytorch.org/whl/cpu && \
     pip install --no-cache-dir \
+      numpy \
       /tmp/wheels/*.whl && \
     rm -rf /tmp/wheels
 

labextension/.yarn/patches/license-webpack-plugin-npm-4.0.2-1e0a964980.patch

@@ -0,0 +1,17 @@
+diff --git a/dist/WebpackInnerModuleIterator.js b/dist/WebpackInnerModuleIterator.js
+index 282271e7411aa6221e408befb4ecfb259edc5896..b55935ad110758a1be09c614fbc1fdc4ed97133e 100644
+--- a/dist/WebpackInnerModuleIterator.js
++++ b/dist/WebpackInnerModuleIterator.js
+@@ -58,7 +58,11 @@ var WebpackInnerModuleIterator = /** @class */ (function () {
+             return tokens[tokens.length - 1];
+         }
+         if (filename.indexOf('provide module') === 0) {
+-            return filename.split('=')[1].trim();
++            // Newer webpack emits self-provided Module Federation shares as
++            // "provide module (default) name@version|/path" (pipe separator, no '='),
++            // so split('=')[1] is undefined. Skip those instead of crashing on .trim().
++            var providedFile = filename.split('=')[1];
++            return providedFile == null ? null : providedFile.trim();
+         }
+         if (filename.indexOf('consume-shared-module') === 0) {
+             var tokens = filename.split('|');

labextension/package.json

@@ -36,5 +36,8 @@
   "jupyterlab": {
     "extension": true,
     "outputDir": "torchcode_labext/labextension"
+  },
+  "resolutions": {
+    "license-webpack-plugin@^4.0.2": "patch:license-webpack-plugin@npm%3A4.0.2#./.yarn/patches/license-webpack-plugin-npm-4.0.2-1e0a964980.patch"
   }
 }