Add side panels, task selection, graph animation, and project docs

- Foldable left panel (user profile) and right panel (task details)
- Clicking a task in the list or graph node selects it and shows details
- Both views (task list + graph) always mounted via absolute inset-0 for
  correct canvas dimensions; tabs toggle visibility with opacity
- Graph node selection animation: other nodes repel outward (charge -600),
  then selected node smoothly slides to center (500ms cubic ease-out),
  then charge restores to -120 and graph stabilizes
- Graph re-fits on tab switch and panel resize via ResizeObserver
- Fix UUID string IDs throughout (backend returns UUIDs, not integers)
- Add TaskDetailPanel, UserPanel components
- Add CLAUDE.md project documentation

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/next/dist/esm/server/send-response.js

@@ -0,0 +1,43 @@
+import { pipeToNodeResponse } from "./pipe-readable";
+import { splitCookiesString } from "./web/utils";
+/**
+ * Sends the response on the underlying next response object.
+ *
+ * @param req the underlying request object
+ * @param res the underlying response object
+ * @param response the response to send
+ */ export async function sendResponse(req, res, response, waitUntil) {
+    // Don't use in edge runtime
+    if (process.env.NEXT_RUNTIME !== "edge") {
+        var // Copy over the response headers.
+        _response_headers;
+        // Copy over the response status.
+        res.statusCode = response.status;
+        res.statusMessage = response.statusText;
+        (_response_headers = response.headers) == null ? void 0 : _response_headers.forEach((value, name)=>{
+            // The append handling is special cased for `set-cookie`.
+            if (name.toLowerCase() === "set-cookie") {
+                // TODO: (wyattjoh) replace with native response iteration when we can upgrade undici
+                for (const cookie of splitCookiesString(value)){
+                    res.appendHeader(name, cookie);
+                }
+            } else {
+                res.appendHeader(name, value);
+            }
+        });
+        /**
+     * The response can't be directly piped to the underlying response. The
+     * following is duplicated from the edge runtime handler.
+     *
+     * See packages/next/server/next-server.ts
+     */ const originalResponse = res.originalResponse;
+        // A response body must not be sent for HEAD requests. See https://httpwg.org/specs/rfc9110.html#HEAD
+        if (response.body && req.method !== "HEAD") {
+            await pipeToNodeResponse(response.body, originalResponse, waitUntil);
+        } else {
+            originalResponse.end();
+        }
+    }
+}
+
+//# sourceMappingURL=send-response.js.map