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/tailwindcss/lib/value-parser/index.js

@@ -0,0 +1,22 @@
+"use strict";
+var parse = require("./parse");
+var walk = require("./walk");
+var stringify = require("./stringify");
+function ValueParser(value) {
+    if (this instanceof ValueParser) {
+        this.nodes = parse(value);
+        return this;
+    }
+    return new ValueParser(value);
+}
+ValueParser.prototype.toString = function() {
+    return Array.isArray(this.nodes) ? stringify(this.nodes) : "";
+};
+ValueParser.prototype.walk = function(cb, bubble) {
+    walk(this.nodes, cb, bubble);
+    return this;
+};
+ValueParser.unit = require("./unit");
+ValueParser.walk = walk;
+ValueParser.stringify = stringify;
+module.exports = ValueParser;