docs: web comments say what the app does, not how it came to be (#6277)

Rewrites the web app's comments to rule 32. Task, milestone, rule and
spec ids are gone; regression stories are restated as the trap they
guard (public auth routes, the menu's stopPropagation, universal loads
under adapter-static, metric deltas with their margin). Flutter and
Tauri mentions now name the Android app or a native shell, operator
quotes and dates are dropped, and one library's counts no longer
appear outside test fixtures. Verified with a TypeScript-scanner token
comparison (template literals and regex literals re-scanned): only
comment text changed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/src/lib/components/DiscoverResultCard.svelte

@@ -2,7 +2,7 @@
   export type DiscoverCardKind = 'artist' | 'album' | 'track';
   // 'snoozed' is a transient state the card flips to in place after the user
   // parks it, so the disappearance is legible and undoable rather than a card
-  // silently vanishing from under the cursor (rule #24). The row is gone on
+  // silently vanishing from under the cursor. The row is gone on
   // the next refetch; the persistent way back is the snoozed list.
   export type DiscoverCardState = 'requestable' | 'kept' | 'requested' | 'snoozed';
 </script>
@@ -37,7 +37,7 @@
   } = $props();
 
   // Art comes from Minstrel's catalogue endpoint, which answers 404 when no
-  // source has an image (M502 #5519): show the icon then, not a broken image.
+  // source has an image: show the icon then, not a broken image.
   // Reset when the card is reused for another result.
   let imageFailed = $state(false);
   $effect(() => {
@@ -118,7 +118,7 @@
             Icon-only to keep Request unambiguously the primary action, with
             the intent carried by the accessible name. "Not right now" is the
             whole point of the wording: this parks a suggestion, it does not
-            record an opinion about the artist (rule #101).
+            record an opinion about the artist.
           -->
           <button
             type="button"