fix: align learn schema with existing LearnCourse/LearnModule models

- Remove duplicate Course/Module models (GitHub main already has LearnCourse/LearnModule)
- Add seed-learn.json with Daily Fiqh for Beginners (5 modules)
- Add seed-learn.js using prisma.learnCourse / prisma.learnModule
- Seed includes quizData, keyTakeaway, duration, giteaPath
- Matches existing API routes: /api/learn/courses, /api/learn/tts, /api/learn/progress

TODO:
- Add markdown content to modules (currently content field is null)
- Generate TTS audio files for listen toggle
- Add intermediate/advanced courses

prisma/seed-learn.json

@@ -0,0 +1,94 @@
+{
+  "courses": [
+    {
+      "slug": "daily-fiqh-beginner",
+      "title": "Daily Fiqh for Beginners",
+      "author": "FalahMobile Learning",
+      "description": "Essential rulings for everyday Muslim life — from waking up to going to bed. Short lessons you can listen to during your commute or while making breakfast.",
+      "imageUrl": "/images/courses/daily-fiqh-beginner.jpg",
+      "difficulty": "beginner",
+      "giteaPath": "courses/daily-fiqh-beginner",
+      "priceFlh": null,
+      "priceUsd": null,
+      "subscriptionOnly": false,
+      "published": true,
+      "modules": [
+        {
+          "order": 1,
+          "title": "The Intention of Wudu",
+          "slug": "intention-of-wudu",
+          "keyTakeaway": "Wudu only counts if you intend it. The intention is the aim of the heart, not words on the tongue.",
+          "duration": 2,
+          "audioPath": null,
+          "quizData": [
+            {
+              "question": "Where does the intention for wudu need to be made?",
+              "options": ["Before touching water", "While washing the face", "After finishing wudu", "Loudly, so others can hear"],
+              "correctIndex": 1
+            }
+          ]
+        },
+        {
+          "order": 2,
+          "title": "How to Perform Wudu Step by Step",
+          "slug": "how-to-perform-wudu",
+          "keyTakeaway": "Four acts in order: face, arms, head, feet. Each with tranquility. The Quran describes wudu with elegant precision.",
+          "duration": 3,
+          "audioPath": null,
+          "quizData": [
+            {
+              "question": "How many essential steps (pillars) does salah have?",
+              "options": ["5", "7", "10", "14"],
+              "correctIndex": 3
+            }
+          ]
+        },
+        {
+          "order": 3,
+          "title": "When Wudu Breaks",
+          "slug": "when-wudu-breaks",
+          "keyTakeaway": "Eight things break wudu. If you are unsure, assume you did not break it. Build on certainty, not suspicion.",
+          "duration": 2,
+          "audioPath": null,
+          "quizData": [
+            {
+              "question": "If you are unsure whether you broke wudu, what should you assume?",
+              "options": ["Assume you broke it and make wudu again", "Assume you did not break it and continue", "Ask a friend what they think", "Skip prayer to be safe"],
+              "correctIndex": 1
+            }
+          ]
+        },
+        {
+          "order": 4,
+          "title": "The Call to Prayer",
+          "slug": "the-call-to-prayer",
+          "keyTakeaway": "The adhan is an invitation from Allah. Repeat after the muezzin, send blessings on the Prophet, and make dua.",
+          "duration": 2,
+          "audioPath": null,
+          "quizData": [
+            {
+              "question": "What should you do immediately after hearing the adhan?",
+              "options": ["Rush to the prayer mat", "Repeat what the muezzin says", "Start eating if you were about to break your fast", "Change into clean clothes"],
+              "correctIndex": 1
+            }
+          ]
+        },
+        {
+          "order": 5,
+          "title": "The Essentials of Salah",
+          "slug": "essentials-of-salah",
+          "keyTakeaway": "Salah has 14 pillars. Missing any intentionally invalidates the prayer. Tranquility over speed.",
+          "duration": 3,
+          "audioPath": null,
+          "quizData": [
+            {
+              "question": "Which surah must be recited in every rak'ah of every prayer?",
+              "options": ["Surah al-Ikhlas", "Surah al-Fatiha", "Surah al-Baqarah", "Any surah the worshipper chooses"],
+              "correctIndex": 1
+            }
+          ]
+        }
+      ]
+    }
+  ]
+}