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/@swc/helpers/scripts/build.js

@@ -0,0 +1,121 @@
+#!/usr/bin/env zx
+
+import { $, fs, glob } from "zx";
+import { ast_grep } from "./ast_grep.js";
+import { errors } from "./errors.js";
+import { root } from "./utils.js";
+
+// clear generated content
+await Promise.all([
+    fs.remove(root("cjs")),
+    fs.remove(root("_")),
+    fs.remove(root("src")),
+]);
+
+let modules = await glob("*.js", { cwd: root("esm") });
+
+const task_queue = [];
+
+const NO_MODIFY = [
+    "/* This file is automatically generated and should not be manually edited. */",
+    "/* To modify this file, please run the `npm run build` command instead. */",
+];
+
+// generate index.js
+const indexESM = [...NO_MODIFY, ""];
+
+const indexCJS = [`"use strict";`, "", ...NO_MODIFY, ""];
+
+const cjs_export_list = [];
+const cjs_module_lexer = [];
+
+const main_package_json = fs.readJSONSync(root("package.json"));
+
+main_package_json.exports = {
+    "./package.json": "./package.json",
+    "./esm/*": "./esm/*",
+    "./cjs/*": "./cjs/*",
+    "./src/*": "./src/*",
+    ".": { import: "./esm/index.js", default: "./cjs/index.cjs" },
+    "./_": { import: "./esm/index.js", default: "./cjs/index.cjs" },
+};
+
+modules.forEach((p) => {
+    const importBinding = p.slice(0, -3);
+
+    main_package_json.exports[`./_/${importBinding}`] = {
+        import: `./esm/${importBinding}.js`,
+        default: `./cjs/${importBinding}.cjs`,
+    };
+
+    const alias_package = {
+        main: `../../cjs/${importBinding}.cjs`,
+        module: `../../esm/${importBinding}.js`,
+    };
+    task_queue.push(
+        fs.outputJSON(root("_", importBinding, "package.json"), alias_package, {
+            encoding: "utf-8",
+            spaces: 4,
+        }),
+    );
+
+    if (importBinding === "index") {
+        return;
+    }
+
+    task_queue.push(
+        fs.outputFile(root("src", `${importBinding}.mjs`), re_export_esm(importBinding), {
+            encoding: "utf-8",
+        }),
+    );
+
+    indexESM.push(`export { ${importBinding} } from "./${importBinding}.js";`);
+
+    cjs_module_lexer.push(`${importBinding}: null,`);
+    cjs_export_list.push(`get ${importBinding}() {
+      return require("./${importBinding}.cjs")._;
+  },`);
+});
+
+indexCJS.push(
+    `0 && (module.exports = {`,
+    "/* @Annotate_start: the CommonJS named exports for ESM import in node */",
+    ...cjs_module_lexer,
+    "/* @Annotate_end */",
+    `});`,
+    `module.exports = {`,
+    ...cjs_export_list,
+    `};`,
+);
+
+task_queue.push(
+    fs.outputJSON(root("package.json"), main_package_json, { spaces: 4 }),
+    fs.outputFile(root("esm", "index.js"), indexESM.join("\n") + "\n", {
+        encoding: "utf-8",
+    }),
+    fs.outputFile(root("cjs", "index.cjs"), indexCJS.join("\n") + "\n", {
+        encoding: "utf-8",
+    }),
+    fs.outputFile(root("src", "index.mjs"), `export * from "../esm/index.js"`, {
+        "encoding": "utf-8",
+    }),
+);
+
+task_queue.push(...ast_grep());
+
+await Promise.all(task_queue);
+
+if (errors.length > 0) {
+    errors.forEach((e) => {
+        console.error(e);
+    });
+    process.exitCode = 1;
+} else {
+    $.cwd = root(".");
+    await $`dprint fmt`;
+    await $`dprint fmt "scripts/*.js" -c scripts/.dprint.json`;
+}
+
+function re_export_esm(importBinding) {
+    return `export { _ as default } from "../esm/${importBinding}.js"`;
+}