Phase 3: event creation flow (GPS + success / error)

GpsService runs a single-shot position request with a hard timeout
and early-exit when Config.GPS_TARGET_ACCURACY_M is reached.
LoadingView renders a circular progress bar around the edge plus the
"Standort wird bestimmt" prompt; on callback it persists a new Event
via EventStore.add and transitions to SuccessView (green checkmark,
short vibration, auto-close) or ErrorView (red alert, 3× vibration,
German message, longer hold). TextUtils extracts the shared
multi-line centered text rendering so MenuView, LoadingView and
ErrorView all render wrapped German text consistently. Positioning
permission added to manifest.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

source/TextUtils.mc

@@ -0,0 +1,46 @@
+import Toybox.Graphics;
+import Toybox.Lang;
+import Toybox.WatchUi;
+
+// Text layout helpers. CIQ's drawText does not wrap, so callers split
+// a string by a separator and hand us an Array<String> which we
+// render vertically centered around (cx, cy).
+module TextUtils {
+
+    const LINE_SEPARATOR = "|";
+
+    function splitLines(text as String) as Array<String> {
+        var result = [] as Array<String>;
+        var current = "";
+        for (var i = 0; i < text.length(); i++) {
+            var c = text.substring(i, i + 1);
+            if (c.equals(LINE_SEPARATOR)) {
+                result.add(current);
+                current = "";
+            } else {
+                current += c;
+            }
+        }
+        result.add(current);
+        return result;
+    }
+
+    function drawCentered(dc as Dc, lines as Array<String>,
+                          cx as Number, cy as Number, font as Graphics.FontType) as Void {
+        var lineHeight = dc.getFontHeight(font);
+        var totalHeight = lines.size() * lineHeight;
+        var startY = cy - totalHeight / 2 + lineHeight / 2;
+        for (var j = 0; j < lines.size(); j++) {
+            dc.drawText(cx, startY + j * lineHeight, font, lines[j],
+                Graphics.TEXT_JUSTIFY_CENTER | Graphics.TEXT_JUSTIFY_VCENTER);
+        }
+    }
+
+    // Convenience: load a string resource and split + draw in one call.
+    function drawResourceCentered(dc as Dc, resourceId as ResourceId,
+                                  cx as Number, cy as Number,
+                                  font as Graphics.FontType) as Void {
+        var text = WatchUi.loadResource(resourceId) as String;
+        drawCentered(dc, splitLines(text), cx, cy, font);
+    }
+}