feat(daily-prep): add Prep-log and Clear-day buttons to MyDay header

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/ClaudeDo.Localization/locales/de.json

@@ -68,6 +68,8 @@
     "enterKey": "ENTER",
     "notesPinnedRow": "Notizen (Tagesnotizen)",
     "prepareDay": "Tag vorbereiten",
+    "prepLog": "Vorbereitungs-Log",
+    "clearDay": "Tag leeren",
     "overdue": "ÜBERFÄLLIG",
     "tasks": "AUFGABEN",
     "clearCompletedTip": "Alle abgeschlossenen löschen",

src/ClaudeDo.Localization/locales/en.json

@@ -68,6 +68,8 @@
     "enterKey": "ENTER",
     "notesPinnedRow": "Notes (daily notes)",
     "prepareDay": "Prepare day",
+    "prepLog": "Prep log",
+    "clearDay": "Clear day",
     "overdue": "OVERDUE",
     "tasks": "TASKS",
     "clearCompletedTip": "Clear all completed",