The composer says which language a post is in

A post went out in the reader's own interface language whatever it was
written in. The composer now has a language picker (each language named in
itself), starting at the persona's default from Settings, else the
interface's; a reply starts in its thread's language. The e2e poll test
picks Italian and finds it on PrivaPub.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw

tests/e2e/Actions/ComposerTests.cs

@@ -6,7 +6,8 @@ using Microsoft.Playwright;
 
 namespace decePubClient.E2E.Actions
 {
-	// The composer beyond words: a poll, the persona's own post edited, and a quote, each checked on PrivaPub
+	// The composer beyond words: a poll in a language picked, the persona's own post edited, and a quote, each checked on
+	// PrivaPub
 	public sealed class ComposerTests(Browser browser)
 	{
 		static async Task OpenHome(IPage page)
@@ -39,12 +40,15 @@ namespace decePubClient.E2E.Actions
 					var choices = page.Locator("[data-poll-editor] input[type=text]");
 					await choices.Nth(0).FillAsync("tea");
 					await choices.Nth(1).FillAsync("coffee");
+					// and in the language picked
+					await page.Locator("[data-compose-language]").First.SelectOptionAsync("it");
 					await page.GetByRole(AriaRole.Button, new() { Name = "Post" }).Last.ClickAsync();
 					JsonNode latest = null;
 					Assert.True(await Pasture.Eventually(async () => (latest = await Latest(persona))?["content"]?.GetValue<string>().Contains(text) == true, 15),
 						"the poll was never published");
 					made = latest!["id"]!.GetValue<string>();
 					Assert.Equal(new[] { "tea", "coffee" }, latest["poll"]!["options"]!.AsArray().Select(o => o!["title"]!.GetValue<string>()));
+					Assert.Equal("it", latest["language"]?.GetValue<string>());
 					await session.AssertGuards();
 				}, page);
 			}