Fix OTA download (follow GitHub redirect), rework result screens, drop asset rename

OTA downloads always failed because GitHub's browser_download_url
returns a 301/302 redirect to a signed objects.githubusercontent.com
URL, which HTTPUpdate doesn't follow by default. Now sets
HTTPC_STRICT_FOLLOW_REDIRECTS before downloading.

Update results (success and failure) are now shown as a persistent
info screen requiring an explicit tap to dismiss, instead of a
1.2-1.5s auto-vanishing message followed by an automatic restart -
a firmware update result is important enough that it shouldn't be
missable. Also fixes long dynamic titles (e.g. "Update available:
v3.5.0") and the installing-progress label overflowing the screen
edge in some languages.

Release workflow no longer renames the build artifact to
CYD-flightradar.bin before upload; the release asset is just
firmware.bin now, matching what OtaUpdate::checkForUpdate() looks
for. CLAUDE.md's release workflow updated to match.

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

src/i18n_en.h

@@ -247,10 +247,13 @@ static const char* const I18N_EN[] = {
     "Check failed. Check your WiFi connection.",
     "Already up to date: v",
     "Update available: v",
-    "A new firmware update will be downloaded and installed. The device will restart automatically afterwards. Please don't interrupt the WiFi connection or power supply during this process.",
+    "A new firmware update will be downloaded and installed. Please don't interrupt the WiFi connection or power supply during this process. You'll be asked to restart once installation is complete.",
     "Installing update ",
-    "Update failed.",
-    "Installed! Restarting...",
+    "Update failed",
+    "Update installed",
+    "The new firmware was installed successfully. Please restart now to start using it.",
+    "Restart now",
+    "The update could not be downloaded or installed. The device is still running the previous firmware, unchanged. Please check your WiFi connection and try again later.",
 };
 
 static_assert(sizeof(I18N_EN) / sizeof(I18N_EN[0]) == (size_t)StringId::COUNT,