A report may carry a screenshot

The 🐞 form takes a picture beside its words — PNG, JPEG, or WebP, under
2.5 MB, previewed before sending. The socket's message cap is far too
small for one, so the picture goes through a plain HTTP door after the
report is filed, addressed to the report's id, one per report within
the hour, checked by its own first bytes, and kept in feedback-images/
beside the reports with a line on the report saying so. The desk's
skill knows where to look.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Jm2auWk6RP71CjaAb4FMoG

packages/web/src/net.svelte.ts

@@ -4,6 +4,10 @@ import type { Command, GameEvent, GameView, Side } from "@wizwar/engine";
 import { cardDef } from "@wizwar/engine";
 import { receiptFor } from "./receipt";
 
+/** The same server over plain HTTP, for the one door a socket cannot carry: a picture. */
+const API_URL =
+  import.meta.env.VITE_WIZWAR_SERVER ? String(import.meta.env.VITE_WIZWAR_SERVER).replace(/^ws/, "http")
+  : location.port === "5173" ? `http://${location.hostname}:8787` : "";
 const SERVER_URL =
   import.meta.env.VITE_WIZWAR_SERVER ??
   (location.port === "5173" // the vite dev server; anything else serves its own socket
@@ -659,9 +663,17 @@ class Net {
       case "feedbackList":
         this.feedbackReports = msg.reports ?? [];
         break;
-      case "feedbackReceived":
+      case "feedbackReceived": {
+        const image = this.pendingImage;
+        this.pendingImage = null;
+        if (image && typeof msg.id === "string") {
+          fetch(`${API_URL}/api/feedback-image/${msg.id}`, { method: "POST", headers: { "content-type": image.type }, body: image })
+            .then((r) => { if (!r.ok) this.flash("The words went through; the picture did not — a PNG or JPEG under 2.5 MB, please"); })
+            .catch(() => this.flash("The words went through; the picture did not"));
+        }
         this.refreshFeedback();
         break;
+      }
       case "games": {
         this.games = msg.games;
         for (const g of msg.games as GameSummary[]) {
@@ -773,7 +785,10 @@ class Net {
   }
 
   /** A surprise report: the server pins it to the room and move number. */
-  sendFeedback(happened: string, expected: string): void {
+  /** A screenshot waiting for its report's id, then posted beside it. */
+  private pendingImage: File | null = null;
+  sendFeedback(happened: string, expected: string, image: File | null = null): void {
+    this.pendingImage = image;
     this.send({ type: "feedback", happened, expected });
   }