assistant: a mic button asks by voice

Each recording is a pw-record Process of its own, made from a Component
like the Do row's runs, so a stopped recording's late exit cannot be
read as the next one's. Stopping sets running to false (SIGTERM), which
lets pw-record write the WAV header; the audio ask goes out from the
process's exit, not from the click.

Recording stops itself at 59 s: the daemon refuses over 60 s by file
size, and the stop lands a little after the tick. Escape cancels a
recording before it does anything else, and closing the card or losing
the daemon cancels it too. A pw-record that ends on its own says
"recording failed".

Checked: a scratch harness saw transcribing, thinking, idle for a 2 s
recording; by hand, every case in the spec passed with no pw-record
left behind, a desktop shell reload mid-recording included.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 23 insertions, 1 deletions

diff --git a/desktop/assistant/Card.qml b/desktop/assistant/Card.qml
index 4c76e64..d8826fa 100644
--- a/desktop/assistant/Card.qml
+++ b/desktop/assistant/Card.qml
@@ -431,10 +431,30 @@ Rectangle {
             }
         }
 
+        // nf-fa-microphone, checked in Inconsolata Nerd Font. Every state,
+        // entry included: SUPER+Home opens the card and the mic is one click away.
+        Button {
+            id: mic
+            anchors { bottom: parent.bottom; left: attach.right; leftMargin: attach.visible ? 8 : 0 }
+            height: box.height
+            icon: ""
+            text: card.canvas.recording
+                ? `${Math.floor(card.canvas.micSecs / 60)}:${String(card.canvas.micSecs % 60).padStart(2, "0")}`
+                : ""
+            danger: card.canvas.recording
+            enabled: card.canvas.connected && (card.canvas.recording
+                || (!card.canvas.busy && !card.canvas.opRunning && !card.canvas.blocked))
+            onClicked: {
+                if (card.canvas.recording) card.canvas.endRecording(true);
+                else card.canvas.record();
+                input.forceActiveFocus();
+            }
+        }
+
         Rectangle {
             id: box
             anchors {
-                bottom: parent.bottom; left: attach.right; leftMargin: attach.visible ? 8 : 0
+                bottom: parent.bottom; left: mic.right; leftMargin: 8
                 right: history.left; rightMargin: 8
             }
             // Grows with the text up to six lines, then scrolls.
@@ -483,6 +503,8 @@ Rectangle {
                 visible: input.text === ""
                 elide: Text.ElideRight
                 text: !card.canvas.connected ? "assistant not running"
+                    : card.canvas.recording ? "Listening… click the mic to send"
+                    : card.canvas.state === "transcribing" ? "Transcribing…"
                     : card.mode === "entry" ? "How can I help you?"
                     : card.canvas.staged.length ? `Ask about ${card.canvas.staged[0].name}…`
                     : "Message the assistant"