✨ feat: add vibration feedback support for UI events

- Add genericVibration class with 5-second cooldown and 1-second pulse
- Integrate vibration triggers for new messages and contact discoveries
- Add conditional compilation support with PIN_VIBRATION guard
- Implement abstract interface for vibration in UITask system

examples/companion_radio/AbstractUITask.h

@@ -42,5 +42,8 @@ public:
   virtual void msgRead(int msgcount) = 0;
   virtual void newMsg(uint8_t path_len, const char* from_name, const char* text, int msgcount) = 0;
   virtual void soundBuzzer(UIEventType bet = UIEventType::none) = 0;
+#ifdef PIN_VIBRATION
+  virtual void triggerVibration() = 0;
+#endif
   virtual void loop() = 0;
 };