feat(eink): use the room of tall screens, add e-ink graphics

Tall screens stack the Sky view and the map over their rows, show more
recent chats, give favourite cards the heard age and distance, and put
the trail map under the trail summary. Wide screens put the page icons
on the header line.

E-ink only (Features::IS_EINK):
- a month calendar under the clock and on the portrait lock screen, with
  the alarm's days marked; the lock screen also lists unread messages,
  the alarm and the clock fields
- 8-hour charts in Status: battery, noise and SNR, mesh traffic
- an elevation profile under the trail map, with the climb and the top
- a compass rose and the path's hops on a contact's detail, arrows by
  the distance in Nodes rows and on favourite cards
- an ordered-dither fade under chart lines

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

examples/companion_radio/ui-new/NearbyScreen.h

@@ -1,4 +1,6 @@
 #pragma once
+#include "InfoKit.h"
+#include "../Features.h"
 #include "../GeoUtils.h"
 #include "NavView.h"
 #include "TabBar.h"
@@ -461,6 +463,46 @@ class NearbyScreen : public UIScreen, protected NearbyModel {
     if (e.is_live) snprintf(buf, sizeof(buf), "Sharing pos: %s %s", age, e.live_verified ? "(DM)" : "(chan)");
     else           snprintf(buf, sizeof(buf), "Seen: %s", age);
     display.drawTextEllipsized(2, hdr + step * 4, display.width() - 4, buf);
+
+    const int W = display.width(), H = display.height(), lh = display.getLineHeight();
+    int rows = 5;
+    // How a message gets there, where there's a line for it (e-ink): a chain
+    // from you to it, a ring per repeater on the way.
+    ContactInfo ci;
+    if (hdr + step * 5 + lh <= H && e.contact_idx >= 0 && the_mesh.getContactByIdx(e.contact_idx, ci)) {
+      const int y = hdr + step * 5;
+      display.setCursor(2, y);
+      display.print("Path:");
+      int x = 2 + display.getTextWidth("Path: ");
+      if (ci.out_path_len == 0xFF) {
+        display.print(" flood");
+      } else {
+        const int hops = ci.out_path_len & 63, shown = hops > 5 ? 5 : hops;
+        const int r = lh / 4 > 2 ? lh / 4 : 2, cy = y + lh / 2 - 1, gap = r + 3;
+        for (int k = 0; k <= shown + 1; k++) {   // you and it filled, the hops as rings
+          if (k) for (int dx = x - gap + 1; dx < x; dx += 2) display.fillRect(dx, cy, 1, 1);
+          info::circle(display, x + r, cy, r);
+          if (k == 0 || k == shown + 1) display.fillRect(x + 1, cy - r + 1, 2 * r - 1, 2 * r - 1);
+          x += 2 * r + 1 + gap;
+        }
+        if (hops == 0) snprintf(buf, sizeof(buf), "direct");
+        else snprintf(buf, sizeof(buf), "%d hop%s", hops, hops == 1 ? "" : "s");
+        display.setCursor(x, y);
+        display.print(buf);
+      }
+      rows = 6;
+    }
+
+    // Where it is, on a compass rose (north up), where the screen has the room
+    // (e-ink): beside the rows on a wide one, under them on a tall one.
+    if (e.dist_km < 0.0f) return;
+    const int below = hdr + step * rows + lh;
+    int r, cx, cy;
+    if (H - below > W / 2) { r = (W < H - below ? W : H - below) / 2 - lh; cx = W / 2; cy = below + lh / 2 + r; }
+    else { r = (H - hdr) / 2 - lh / 2 - 1; cx = W - r - 3; cy = hdr + lh / 2 + r; }
+    const int text_r = 2 + display.getTextWidth("Lon: -000.00000");
+    if (r < 2 * lh || (cy - r < below - lh && cx - r < text_r)) return;
+    info::rose(display, cx, cy, r, geo::bearingDeg(_own_lat, _own_lon, e.lat_e6, e.lon_e6));
   }
 
   void renderScanDetail(DisplayDriver& display) {
@@ -608,7 +650,9 @@ public:
     }
 
     int item_h   = display.lineStep();
-    int dist_col = display.width() - display.getCharWidth() * 7;
+    // E-ink sets an arrow towards the node before its distance: one more cell.
+    const bool arrows = Features::IS_EINK && _source == SRC_STORED && _sort != SORT_TIME;
+    int dist_col = display.width() - display.getCharWidth() * (arrows ? 9 : 7);
 
     display.setColor(DisplayDriver::LIGHT);
     const char* flt = (_filter != F_ALL) ? filterLabel(_filter) : nullptr;
@@ -691,6 +735,12 @@ public:
           else                   strcpy(right, "-");   // no fix of ours or theirs
         }
         if (right[0]) display.drawTextRightAlign(display.width() - reserve - 2, y, right);
+        if (arrows && e.dist_km >= 0.0f) {
+          const int deg = geo::bearingDeg(_own_lat, _own_lon, e.lat_e6, e.lon_e6);
+          const MiniIcon& ic = *ICON_ARROWS[((deg + 22) % 360) / 45];
+          miniIconDraw(display, display.width() - reserve - 2 - display.getTextWidth(right) - 3
+                                - ic.w * miniIconScale(display), y, ic);
+        }
       });
     }