Give every window a verb, and answer what the terminal asks

The socket carried a bare word and said nothing back, so a script could press
the buttons but never learn what was said. A request is JSON now, it can ask to
be answered when the run ends rather than when it starts, and the reply carries
the transcript, the agent's answer, or why nothing happened. The verbs that do
not need the microphone run in the caller's own process, which is what makes
transcribing a file or reading a setting work over ssh.

worker.py

@@ -49,12 +49,16 @@ class Pipeline(QObject):
     def busy(self):
         return self._thread is not None and self._thread.is_alive()
 
-    def run(self, wav_path, duration, rms_values=(), ask=False):
+    def run(self, wav_path, duration, rms_values=(), ask=False, paste=None):
+        """`paste` overrides the setting for this one run, which is what a
+        dictation asked for from a terminal wants: the text comes back down the
+        socket, and pasting it into whatever had focus is nobody's intention."""
         if self.busy:
             return
         self._stop.clear()
         self._thread = threading.Thread(
-            target=self._work, args=(wav_path, duration, list(rms_values), ask),
+            target=self._work,
+            args=(wav_path, duration, list(rms_values), ask, paste),
             daemon=True,
         )
         self._thread.start()
@@ -68,7 +72,7 @@ class Pipeline(QObject):
         """
         self._stop.set()
 
-    def _work(self, wav_path, duration, rms_values, ask):
+    def _work(self, wav_path, duration, rms_values, ask, paste_override=None):
         conf = self.conf
         started = time.monotonic()
         raw = ""
@@ -135,11 +139,15 @@ class Pipeline(QObject):
                 )
                 warning = "\n".join(x for x in (warning, denied) if x)
 
+            wants_paste = (conf["assistant_paste"] if ask else conf["auto_paste"])
+            if paste_override is not None:
+                wants_paste = paste_override
+
             with _paste_lock:
                 previous = paste.read_clipboard() if conf["restore_clipboard"] else None
                 paste.copy(text)
 
-                if (conf["assistant_paste"] if ask else conf["auto_paste"]):
+                if wants_paste:
                     self.stage.emit(t("Pasting…"))
                     paste.press(conf["paste_shortcut"])
                     if previous is not None: