fix: self-heal chatbot recipe requests answered as prose, not a tool call (v0.57.1)

The system prompt already told the model to MUST call createRecipe
instead of writing the recipe out — that's a soft rule some models
(especially free-tier ones) still ignore. There was no fallback: if the
model answered in prose, that's just what got returned, no draft card.

Added a detector (looksLikeUnstructuredRecipe: 3+ numbered/bulleted
lines with no tool call) and a forced-tool retry when it fires — same
system+prompt, but toolChoice forced to createRecipe so the model can't
opt out on the second pass. Falls back to a short localized line if the
provider returns no text alongside a forced tool call (some do this by
design). Retry failure just keeps the original prose answer rather than
erroring the whole request.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/web/lib/changelog.ts

@@ -1,5 +1,5 @@
 // Mirrors CHANGELOG.md at the repo root — update both together.
-export const APP_VERSION = "0.57.0";
+export const APP_VERSION = "0.57.1";
 
 export type ChangelogEntry = {
   version: string;
@@ -11,6 +11,13 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    version: "0.57.1",
+    date: "2026-07-20 20:00",
+    fixed: [
+      "Chatbot sometimes answered \"create a recipe\" requests with the recipe spelled out as prose instead of the actual draft card (weaker/free-tier models occasionally ignore the tool-calling instruction). Now detects that shape (a numbered/bulleted list with no tool call) and forces one retry with the tool call required, so the draft card still appears.",
+    ],
+  },
   {
     version: "0.57.0",
     date: "2026-07-20 09:20",