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/accessor-fn/dist/accessor-fn.d.ts

@@ -0,0 +1,7 @@
+type AccessorFn = (item: any) => any;
+
+declare function accessor(
+  accessorParam: string | AccessorFn | any
+): AccessorFn;
+
+export { accessor as default };

frontend/node_modules/accessor-fn/dist/accessor-fn.js

@@ -0,0 +1,21 @@
+// Version 1.5.3 accessor-fn - https://github.com/vasturiano/accessor-fn
+(function (global, factory) {
+    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+    typeof define === 'function' && define.amd ? define(factory) :
+    (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.accessorFn = factory());
+})(this, (function () { 'use strict';
+
+    var index = (function (p) {
+      return typeof p === 'function' ? p // fn
+      : typeof p === 'string' ? function (obj) {
+        return obj[p];
+      } // property name
+      : function (obj) {
+        return p;
+      };
+    }); // constant
+
+    return index;
+
+}));
+//# sourceMappingURL=accessor-fn.js.map

frontend/node_modules/accessor-fn/dist/accessor-fn.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"accessor-fn.js","sources":["../src/index.js"],"sourcesContent":["export default p => typeof p === 'function'\n    ? p                     // fn\n    : typeof p === 'string'\n        ? obj => obj[p]     // property name\n        : obj => p;         // constant\n"],"names":["p","obj"],"mappings":";;;;;;;AAAA,gBAAA,CAAe,UAAAA,CAAC,EAAA;IAAA,EAAA,OAAI,OAAOA,CAAC,KAAK,UAAU,GACrCA,CAAC;IAAqB,IACtB,OAAOA,CAAC,KAAK,QAAQ,GACjB,UAAAC,GAAG,EAAA;QAAA,OAAIA,GAAG,CAACD,CAAC,CAAC;OAAK;IAAA,IAClB,UAAAC,GAAG,EAAA;IAAA,IAAA,OAAID,CAAC;IAAA,GAAA;IAAA,CAAA,EAAC;;;;;;;;"}

frontend/node_modules/accessor-fn/dist/accessor-fn.min.js

@@ -0,0 +1,2 @@
+// Version 1.5.3 accessor-fn - https://github.com/vasturiano/accessor-fn
+!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(e="undefined"!=typeof globalThis?globalThis:e||self).accessorFn=n()}(this,(function(){"use strict";return function(e){return"function"==typeof e?e:"string"==typeof e?function(n){return n[e]}:function(n){return e}}}));

frontend/node_modules/accessor-fn/dist/accessor-fn.mjs

@@ -0,0 +1,11 @@
+var index = (function (p) {
+  return typeof p === 'function' ? p // fn
+  : typeof p === 'string' ? function (obj) {
+    return obj[p];
+  } // property name
+  : function (obj) {
+    return p;
+  };
+}); // constant
+
+export { index as default };