Enable CO5300 AMOLED display with live watch face

Display now shows time (00:00 from reset RTC) and status line with
radio state, battery percentage, GPS satellites, and uptime counter.
Display blanking disabled until button input is implemented.
QSPI display driver confirmed working after I2C pin fix.

Boards.h

@@ -742,7 +742,7 @@
       #define HAS_BUSY true
       #define HAS_TCXO true
 
-      #define HAS_DISPLAY false  // CO5300 QSPI driver written but not yet functional
+      #define HAS_DISPLAY true
       #define HAS_CONSOLE true
       #define HAS_WIFI true
       #define HAS_BLUETOOTH false

Display.h

@@ -31,7 +31,7 @@
 
   bool display_blanked = false;
   uint32_t last_unblank_event = 0;
-  uint32_t display_blanking_timeout = 15000;
+  uint32_t display_blanking_timeout = 0;  // Disabled until button wake is implemented
 
   // Partial framebuffer for clock region (410 x 60 = ~49KB, fits in DMA memory)
   #define CLOCK_FB_W CO5300_WIDTH
@@ -52,6 +52,9 @@
     if (!co5300_init()) return false;
     co5300_set_brightness(128);
 
+    // Disable blanking until button wake is implemented
+    display_blanking_enabled = false;
+
     // Allocate partial framebuffer for clock region (PSRAM preferred for large buffers)
     clock_fb = (uint16_t *)heap_caps_malloc(CLOCK_FB_W * CLOCK_FB_H * 2, MALLOC_CAP_SPIRAM | MALLOC_CAP_8BIT);
     if (!clock_fb) clock_fb = (uint16_t *)malloc(CLOCK_FB_W * CLOCK_FB_H * 2);
@@ -101,10 +104,11 @@
     memset(clock_fb, 0, CLOCK_FB_W * CLOCK_FB_H * 2);
 
     char status[64];
-    snprintf(status, sizeof(status), "%s  %d%%  %d sats",
+    snprintf(status, sizeof(status), "%s  %d%%  %dsats  %lus",
              radio_online ? "RADIO" : "idle",
              (int)battery_percent,
-             gps_sats);
+             gps_sats,
+             millis() / 1000);
 
     co5300_draw_string(clock_fb, CLOCK_FB_W, CLOCK_FB_H,
                        10, 15, status, CO5300_GREY, &Org_01);