feat(localization): enhance course progress and review messaging across multiple languages

- Added new confirmation titles and messages for resetting and marking lessons as complete in admin and user interfaces.
- Expanded course flow and review scheduling messages to improve clarity and user guidance in Cebuano, German, Spanish, and English.
- Introduced a new section in the VocabCourseView to display today's recommended steps for users, enhancing the learning experience.
- Updated localization files to ensure consistent messaging and improved user engagement across all supported languages.

frontend/src/i18n/locales/en/socialnetwork.json

@@ -659,7 +659,17 @@
                 "courseShareCodePlaceholder": "e.g. abc123def456",
                 "courseFlowEyebrow": "Daily flow",
                 "courseFlowTitle": "Best next step for today",
-                "courseFlowIntro": "The order follows the concept: due reviews first, then the current block, then intensive review, and finally free practice.",
+                "courseFlowIntro": "Start with today’s suggested order at the top. Below that, the four areas in detail: due quick reviews, current block, intensive review, free practice.",
+                "courseTodayPlanTitle": "Suggested for today",
+                "courseTodayPlanIntro": "Practical order: first everything that is due for a quick review, then open lessons in your current block, then intensive review if shown. Quick reviews are three short revisit dates after you finish a lesson (typically about 1, 3 and 7 days apart) so vocabulary sticks.",
+                "courseTodayPlanStepReviewDue": "Quick review now",
+                "courseTodayPlanStepBlock": "Continue in your current block",
+                "courseTodayPlanStepIntensive": "Intensive review",
+                "courseTodayPlanStepContinue": "Next on your learning path",
+                "courseTodayPlanStepPractice": "Free practice (optional)",
+                "courseTodayPlanOpen": "Open lesson",
+                "courseTodayPlanTrainer": "Open trainer",
+                "courseTodayPlanEmpty": "Nothing scheduled as due right now and no clear next block step. Pick a lesson below or use free practice with the trainer.",
                 "courseFlowReviewStat": "Due review: {count}",
                 "courseFlowBlockStat": "Active block: {block}",
                 "courseFlowReviewTitle": "Due review",
@@ -700,10 +710,20 @@
                 "reviewBadgeScheduleInDays": "next wave in {count} days",
                 "reviewBadgeScheduleToday": "wave slated for today",
                 "reviewBadgeScheduleOverdue": "wave overdue ({count} days)",
-                "reviewStageDay1": "Day 1",
-                "reviewStageDay3": "Day 3",
-                "reviewStageDay7": "Day 7",
-                "reviewStageCompleted": "Review completed",
+                "reviewBadgeLineAllDone": "All quick reviews done (3×)",
+                "reviewBadgeLineDue": "Quick review: step {step} of 3 · due now",
+                "reviewBadgeLineScheduled": "Quick review: step {step} of 3 · next on {when}",
+                "reviewWhenFriendlyTomorrow": "tomorrow",
+                "reviewWhenFriendlyInDays": "in {count} days",
+                "reviewWhenFriendlyToday": "today",
+                "reviewWhenFriendlyOverdue": "overdue ({count} day(s) ago)",
+                "reviewWhenFriendlySoon": "soon",
+                "reviewBadgeTooltipDone": "You finished the three suggested quick reviews after this lesson. You can still keep practicing in the trainer.",
+                "reviewBadgeTooltipActive": "After you complete a lesson, the course suggests three short reviews about 1, 3 and 7 days apart so words stay in memory. The badge shows which step (1–3) is active or when the next date is.",
+                "reviewStageDay1": "Step 1 of 3 (~1 day)",
+                "reviewStageDay3": "Step 2 of 3 (~3 days)",
+                "reviewStageDay7": "Step 3 of 3 (~7 days)",
+                "reviewStageCompleted": "All quick reviews done",
                 "phaseQuickstart": "Quick start",
                 "phaseDailyLife": "Daily life",
                 "phaseStabilization": "Stabilization",