fix: suppress microphone activity indications and document dictation diagnosis

docs/constellation-work.md

@@ -133,6 +133,17 @@ delivery. Automatic paste can follow if wanted after checking Niri compatibility
 Verification: formatting, flake evaluation, Zenith and Polaris no-link system
 builds, and whitespace checks passed. No system activation or interactive
 dictation was performed; recognition quality and latency remain unmeasured.
+First-use diagnosis: Handy was set to Nemotron, Direct Input, Don't Modify
+Clipboard and push-to-talk. One recording transcribed but output used X11 input
+simulation; other recordings returned zero usable samples. Default digital mic
+is unmuted. Set None + Copy to Clipboard and retry a full sentence; microphone
+selection/voice detection needs further checking if History stays empty.
+Niri Super+D invokes a forced toggle, independent of Handy's push-to-talk setting;
+Handy's Ctrl+Space global binding is not the Niri binding. Keep the user's minimal
+overlay. Noctalia's native microphone filter suppresses all microphone activity
+popups/indicators, while camera and screen-sharing indications remain enabled.
+The Noctalia change passed formatting, flake evaluation and both workstation
+builds; user activation and the clipboard retry remain pending.
 
 The focus is the broader environment, not further API/database polish. Candidate
 areas remain places/ownership, navigation/interaction, human/agent collaboration,