Fix normal radio report submission

The radio button was connected only to the emergency hold handlers, so a
normal Send request never reached _submit. Connect pressed for non-emergency
calls while keeping hold-to-confirm exclusive to emergencies, and add tests
for click, short-hold rejection and full emergency hold. Headless 249/249,
Python 94/94.

CHANGELOG.md

@@ -4,6 +4,13 @@ All notable user-facing changes to Gig Line. The format follows
 [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and versions use
 Semantic Versioning.
 
+## [0.8.1] — 2026-11-01
+
+### Fixed
+
+- Normal radio reports now send on click. The button was wired only to the
+  emergency hold-to-confirm handlers, so a non-emergency press did nothing.
+
 ## [0.8.0] — 2026-11-01
 
 ### Added