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/server/lib/server-action-request-meta.js

@@ -0,0 +1,50 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+0 && (module.exports = {
+    getIsServerAction: null,
+    getServerActionRequestMetadata: null
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    getIsServerAction: function() {
+        return getIsServerAction;
+    },
+    getServerActionRequestMetadata: function() {
+        return getServerActionRequestMetadata;
+    }
+});
+const _approuterheaders = require("../../client/components/app-router-headers");
+function getServerActionRequestMetadata(req) {
+    let actionId;
+    let contentType;
+    if (req.headers instanceof Headers) {
+        actionId = req.headers.get(_approuterheaders.ACTION.toLowerCase()) ?? null;
+        contentType = req.headers.get("content-type");
+    } else {
+        actionId = req.headers[_approuterheaders.ACTION.toLowerCase()] ?? null;
+        contentType = req.headers["content-type"] ?? null;
+    }
+    const isURLEncodedAction = Boolean(req.method === "POST" && contentType === "application/x-www-form-urlencoded");
+    const isMultipartAction = Boolean(req.method === "POST" && (contentType == null ? void 0 : contentType.startsWith("multipart/form-data")));
+    const isFetchAction = Boolean(actionId !== undefined && typeof actionId === "string" && req.method === "POST");
+    const isServerAction = Boolean(isFetchAction || isURLEncodedAction || isMultipartAction);
+    return {
+        actionId,
+        isURLEncodedAction,
+        isMultipartAction,
+        isFetchAction,
+        isServerAction
+    };
+}
+function getIsServerAction(req) {
+    return getServerActionRequestMetadata(req).isServerAction;
+}
+
+//# sourceMappingURL=server-action-request-meta.js.map