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/future/route-matchers/route-matcher.d.ts

@@ -0,0 +1,26 @@
+import type { RouteMatch } from '../route-matches/route-match';
+import type { RouteDefinition } from '../route-definitions/route-definition';
+type RouteMatchResult = {
+    params?: Record<string, string | string[]>;
+};
+export declare class RouteMatcher<D extends RouteDefinition = RouteDefinition> {
+    readonly definition: D;
+    private readonly dynamic?;
+    /**
+     * When set, this is an array of all the other matchers that are duplicates of
+     * this one. This is used by the managers to warn the users about possible
+     * duplicate matches on routes.
+     */
+    duplicated?: Array<RouteMatcher>;
+    constructor(definition: D);
+    /**
+     * Identity returns the identity part of the matcher. This is used to compare
+     * a unique matcher to another. This is also used when sorting dynamic routes,
+     * so it must contain the pathname part.
+     */
+    get identity(): string;
+    get isDynamic(): boolean;
+    match(pathname: string): RouteMatch<D> | null;
+    test(pathname: string): RouteMatchResult | null;
+}
+export {};