JL Cooper MIDI Controller I/O, Focus widget hardware binding, iOS Channel Focus polish

Desktop:
- New dedicated MIDI Controller In port (separate from MIDI In), same CC learn/bind pipeline but never passes notes through; positioned first in the IO column order
- Fixed MIDI In "Not Connected" not persisting across restart (missing save_io_config call)
- Fixed MIDI Out/Transport Out mutual-exclusion incorrectly flagging "Not Connected" as an in-use port
- Renamed "Remote" checkbox to "App" on Fader/Toggle/Transport widgets
- FocusFaderWidget/FocusToggleWidget: new Hardware section (Learn + CC/CH bind) so a physical controller can drive a Channel Focus widget alongside the app/OSC, plus an independent Feedback checkbox that sends translated CC out (for motorized fader / LED sync)
- JL Cooper touch-sense profile ("No Profile" / "MIDI JL Cooper CC Mode") on FaderWidget/FocusFaderWidget: touch channel (value channel - 1, same CC) is filtered out of the value and gates incoming OSC/DAW feedback while touching
- FocusFeedbackWidget: "Custom" checkbox to show a manually-typed static string instead of live OSC feedback, disabling Learn/OSC input and suppressing the iPad broadcast while active
- New daw-config-reaper/ folder with reaper-osc-config-paul-custom.ReaperOSC

iOS:
- New FocusToggleWidget (dedicated Channel Focus toggle, split out of shared ToggleWidget) with colorName-aware darken/border and isMomentary handling — keeps Channel-Focus-only behavior off the regular ToggleWidget
- Arrange mode long-press menu: text alignment (left/center/right) and a 10-color named-palette Text Color picker for TitleWidget/FocusFeedbackWidget, persisted in the saved layout
- FocusFeedbackWidget: Reset Size action, monospaced-digit font fix for timestamp/counter jitter
- New "Cancel Changes" button in Arrange mode — reverts layout/hides/aligns to the state at Arrange-mode entry and restores desktop-side Remote/dest assignments
- Grid line brightness increased for visibility
- Bonjour discovery for desktop auto-connect

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

server/ws_server.py

@@ -6,6 +6,7 @@ from PyQt6.QtNetwork import QHostAddress
 
 class WSServer(QObject):
     control_received = pyqtSignal(str, int)
+    control_f_received = pyqtSignal(str, float)
     layout_saved = pyqtSignal(str, object)
     widget_visibility_received = pyqtSignal(str, int)
     client_connected = pyqtSignal()
@@ -48,6 +49,11 @@ class WSServer(QObject):
                 val = int(data["value"])
                 self.log_signal.emit(f"control  uid={uid[:8]}…  val={val}")
                 self.control_received.emit(uid, val)
+            elif ev == "control_f":
+                uid = data["uid"]
+                val = float(data["value"])
+                self.log_signal.emit(f"control_f  uid={uid[:8]}…  val={val:.4f}")
+                self.control_f_received.emit(uid, val)
             elif ev == "save_layout":
                 n = len(data.get("layout", {}))
                 self.log_signal.emit(f"layout saved  preset={data['preset_uuid'][:8]}…  {n} widgets")
@@ -82,6 +88,15 @@ class WSServer(QObject):
     def broadcast_widget_update(self, uid: str, value: int):
         self.broadcast({"event": "widget_update", "uid": uid, "value": value})
 
+    def broadcast_widget_update_f(self, uid: str, value: float):
+        self.broadcast({"event": "widget_update_f", "uid": uid, "value": value})
+
+    def broadcast_widget_label(self, uid: str, label: str):
+        self.broadcast({"event": "widget_label", "uid": uid, "label": label})
+
+    def broadcast_widget_feedback(self, uid: str, text: str):
+        self.broadcast({"event": "widget_feedback", "uid": uid, "text": text})
+
     def broadcast_daw_state(self, **kwargs):
         self.broadcast({"event": "daw_state", **kwargs})