Store and show an event's query string, and pass it on to an HTTP target when set (closes #312)

The receiver keeps the query string of the request it received on the event, in a new `raw_query` column of the per-webhook `events` table; a resubmitted copy carries its original's. The event log and the event's page show it with the request, the event log leaving out one over 32 KiB as it does request headers. The archive and log targets carry it. An HTTP target gets a `forwardQuery` setting, off by default, on both target forms and in the target list: on, each delivery, replays and resubmits included, appends the query string to the target URL, joined with `&` to one it already has.

Model: opus-5-5

internal/server/alpine_browser_test.go

@@ -507,9 +507,10 @@ func checkRefusedTarget(ctx context.Context, t *testing.T, url string) {
 	t.Helper()
 
 	const (
-		refusedURL = "http://127.0.0.1/hook"
-		urlField   = `form[action$="/targets"] input[name="url"]`
-		reason     = `//div[@class="alert-error"]`
+		refusedURL   = "http://127.0.0.1/hook"
+		urlField     = `form[action$="/targets"] input[name="url"]`
+		forwardQuery = `form[action$="/targets"] input[name="forward_query"]`
+		reason       = `//div[@class="alert-error"]`
 	)
 
 	require.NoError(t, chromedp.Run(ctx, loadPage(url)))
@@ -519,6 +520,7 @@ func checkRefusedTarget(ctx context.Context, t *testing.T, url string) {
 		ctx,
 		chromedp.SetValue(targetName, "refused", chromedp.ByQuery),
 		chromedp.SetValue(urlField, refusedURL, chromedp.ByQuery),
+		chromedp.Click(forwardQuery, chromedp.ByQuery),
 	))
 
 	click(ctx, t, saveButton)
@@ -526,18 +528,26 @@ func checkRefusedTarget(ctx context.Context, t *testing.T, url string) {
 	assert.True(t, shown(ctx, reason),
 		"a refused target does not show the reason")
 
-	var name, typed string
+	var (
+		name, typed string
+		checked     bool
+	)
 
 	require.NoError(t, chromedp.Run(
 		ctx,
 		chromedp.Value(targetName, &name, chromedp.ByQuery),
 		chromedp.Value(urlField, &typed, chromedp.ByQuery),
+		chromedp.JavascriptAttribute(
+			forwardQuery, "checked", &checked, chromedp.ByQuery,
+		),
 	))
 
 	assert.Equal(t, "refused", name,
 		"a refused target does not keep the name entered")
 	assert.Equal(t, refusedURL, typed,
 		"a refused target does not keep the url entered")
+	assert.True(t, checked,
+		"a refused target does not keep the query string setting checked")
 	assert.True(t, shown(ctx, targetName),
 		"a refused target does not come back with the form open")
 	assert.True(t, hidden(ctx, typeSelect),
@@ -553,10 +563,15 @@ func checkRefusedTarget(ctx context.Context, t *testing.T, url string) {
 		ctx,
 		chromedp.Value(targetName, &name, chromedp.ByQuery),
 		chromedp.Value(urlField, &typed, chromedp.ByQuery),
+		chromedp.JavascriptAttribute(
+			forwardQuery, "checked", &checked, chromedp.ByQuery,
+		),
 	))
 
 	assert.Empty(t, name, "after Cancel, the next Add keeps the name entered")
 	assert.Empty(t, typed, "after Cancel, the next Add keeps the url entered")
+	assert.False(t, checked,
+		"after Cancel, the next Add keeps the query string setting checked")
 }
 
 // checkTargetDeliveries loads a webhook page and checks that the row of