refactor(e10): move the platform components into components/ui/ and enforce the boundary

The app HAS a platform layer -- AnchoredPopover (22 importers, with arrows/typeahead/Escape/anchor-flip), QueryState (21), Modal (17), PageShell, DataTable, Tabs, Tooltip and ~26 more -- but it sat flat among ~160 feature components with nothing marking it as one. Several of those files describe themselves as 'the one place' or 'canonical' and were still bypassed by hand-rolled markup, because a layer nobody can see is a layer nobody uses; three separate inventory passes of this codebase misread it the same way. Moves the 33 domain-free modules into components/ui/, rewrites the imports in 89 files, and makes the boundary a lint rule rather than a convention: inside ui/ a one-level-up import (a feature component) and any lib/api slice are errors. The rule was verified to fire on both and to leave generic lib/ helpers alone. README.md states which side of the line a component belongs on and why. No behaviour change: 3x tsc, eslint, knip, prettier and 687 vitest tests all green; no backend file touched.
2026-09-05 16:58:29 +02:00
parent 31fa554b87
commit 5bfcf5d83a
138 changed files with 262 additions and 189 deletions
@@ -0,0 +1,48 @@
+import { useEffect, useState } from "react";
+
+// Avatar image with a graceful fallback.
+//
+// Uses referrerPolicy="no-referrer" because Google's avatar CDNs
+// (yt3.ggpht.com / lh3.googleusercontent.com) rate-limit bursts of
+// referrer-bearing requests — when a feed page fires dozens of avatar loads at
+// once, a random subset gets throttled (HTTP 429) and the browser shows its
+// broken-image icon. Dropping the referrer makes those CDNs serve the images.
+// If a load still fails we render a neutral placeholder (optionally an initial)
+// instead of the broken-image icon.
+export default function Avatar({
+  src,
+  alt = "",
+  fallback,
+  className = "",
+}: {
+  src?: string | null;
+  alt?: string;
+  fallback?: string; // a name/title; its first letter is shown when there's no image
+  className?: string;
+}) {
+  const [failed, setFailed] = useState(false);
+  useEffect(() => setFailed(false), [src]);
+
+  if (src && !failed) {
+    return (
+      <img
+        src={src}
+        alt={alt}
+        loading="lazy"
+        referrerPolicy="no-referrer"
+        onError={() => setFailed(true)}
+        className={className}
+      />
+    );
+  }
+
+  const initial = fallback?.trim()?.[0]?.toUpperCase() ?? "";
+  return (
+    <div
+      className={`bg-card grid place-items-center font-semibold text-muted select-none ${className}`}
+      aria-hidden
+    >
+      {initial}
+    </div>
+  );
+}