Use one name for each thing the UI shows (closes #399)

The database target type is called an archive on its badge, in the add target form's type list and on its edit page, and its settings read "Archive expiry" and "Archive rotation" everywhere, the new webhook page included. The retry field is labelled "Delivery attempts", with its help text and error messages to match, on both target forms and in the target list, where a stored 0 shows as one attempt. The target list's other labels take the same capitalisation. The navbar says "Sign out" and the sign-in page "Sign in", and the README follows. The resubmit notice says "webhook". The stored values (`database`, `max_retries`) and their meaning are unchanged.

Model: opus-5-5

internal/handlers/ui_copy_test.go

@@ -354,15 +354,14 @@ func TestEntrypointCopyButtonIsProgressiveEnhancement(t *testing.T) {
 // and target_http gives up once the attempt number reaches
 // max_retries), and 0 is special-cased to a single fire-and-forget
 // attempt with no circuit breaker.
-const maxRetriesHelp = "This is the total number of delivery attempts, " +
-	"not retries on top of the first: a value of 3 makes three attempts " +
-	"in all. 0 means a single attempt with no retries and no circuit " +
-	"breaker."
+const maxRetriesHelp = "How many times each delivery is attempted in " +
+	"all, the first attempt included. 0 means a single attempt with no " +
+	"retries and no circuit breaker."
 
 // TestTargetFormMaxRetriesCopyMatchesBehaviour pins the max_retries
-// help text on both the create form (the add-target form on the webhook
-// detail page) and the edit form, so the copy cannot drift back to
-// calling the number a retry count.
+// label, "Delivery attempts", and help text on both the create form
+// (the add-target form on the webhook detail page) and the edit form,
+// so the copy cannot drift back to calling the number a retry count.
 func TestTargetFormMaxRetriesCopyMatchesBehaviour(t *testing.T) {
 	t.Parallel()
 
@@ -393,6 +392,7 @@ func TestTargetFormMaxRetriesCopyMatchesBehaviour(t *testing.T) {
 		},
 	)
 
+	assert.Contains(t, createBody, "Delivery attempts:</label>")
 	assert.Contains(
 		t, createBody, maxRetriesHelp,
 		"the add-target form must explain max_retries as total attempts",
@@ -419,8 +419,33 @@ func TestTargetFormMaxRetriesCopyMatchesBehaviour(t *testing.T) {
 		},
 	)
 
+	assert.Contains(t, editBody, `class="label">Delivery attempts</label>`)
 	assert.Contains(
 		t, editBody, maxRetriesHelp,
 		"the target edit form must explain max_retries as total attempts",
 	)
 }
+
+// TestCreateFormCallsTheDatabaseTargetAnArchive pins the names the new
+// webhook page gives the database target its Archive checkbox creates,
+// and that target's settings, to the ones the target forms use.
+func TestCreateFormCallsTheDatabaseTargetAnArchive(t *testing.T) {
+	t.Parallel()
+
+	var h *handlers.Handlers
+
+	var sess *session.Session
+
+	app := newTestApp(t, &h, &sess)
+	app.RequireStart()
+
+	t.Cleanup(app.RequireStop)
+
+	body := renderPage(t, h, sess, "sources_new.html", map[string]any{
+		dataKeyError: "",
+	})
+
+	assert.Contains(t, body, "created with an archive target")
+	assert.Contains(t, body, `class="label">Archive expiry</label>`)
+	assert.Contains(t, body, `class="label">Archive rotation</label>`)
+}