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>

manifest.xml

@@ -9,7 +9,9 @@
             <iq:product id="fenix7"/>
             <iq:product id="fr265"/>
         </iq:products>
-        <iq:permissions/>
+        <iq:permissions>
+            <iq:uses-permission id="Positioning"/>
+        </iq:permissions>
         <iq:languages>
             <iq:language>deu</iq:language>
         </iq:languages>