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/dlv/dist/dlv.es.js

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+//# sourceMappingURL=dlv.es.js.map

frontend/node_modules/dlv/dist/dlv.es.js.map

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frontend/node_modules/dlv/dist/dlv.js

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+module.exports=function(t,e,l,n,o){for(e=e.split?e.split("."):e,n=0;n<e.length;n++)t=t?t[e[n]]:o;return t===o?l:t};
+//# sourceMappingURL=dlv.js.map

frontend/node_modules/dlv/dist/dlv.js.map

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frontend/node_modules/dlv/dist/dlv.umd.js

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+!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=function(t,n,e,i,o){for(n=n.split?n.split("."):n,i=0;i<n.length;i++)t=t?t[n[i]]:o;return t===o?e:t}:"function"==typeof define&&define.amd?define(function(){return function(t,n,e,i,o){for(n=n.split?n.split("."):n,i=0;i<n.length;i++)t=t?t[n[i]]:o;return t===o?e:t}}):t.dlv=function(t,n,e,i,o){for(n=n.split?n.split("."):n,i=0;i<n.length;i++)t=t?t[n[i]]:o;return t===o?e:t}}(this);
+//# sourceMappingURL=dlv.umd.js.map

frontend/node_modules/dlv/dist/dlv.umd.js.map

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