feat: micro-learning module with seed data

- Add Course and Module models to Prisma schema
- Create seed-learn.json with Daily Fiqh for Beginners (5 modules)
- Create seed-learn.js with Hermes patch (strip id/courseId from create)
- Add /learn page with course listing
- Add /learn/[courseSlug]/[moduleId] page with content + quiz
- Quiz data stored as JSON string per module
- Content rendered as markdown with Key Concept, Details, Reflection, Action Step sections

TODO:
- Add audio player component for listen toggle
- Add progress tracking per user
- Add actual quiz scoring/validation
- Connect to TTS pipeline for audio generation

prisma/seed-learn.js

@@ -0,0 +1,76 @@
+#!/usr/bin/env node
+/**
+ * Seed script for micro-learning courses.
+ * Reads prisma/seed-learn.json and creates courses/modules in the database.
+ *
+ * Run:
+ *   npx prisma db push
+ *   node prisma/seed-learn.js
+ */
+
+const { PrismaClient } = require('@prisma/client');
+const fs = require('fs');
+const path = require('path');
+
+const prisma = new PrismaClient();
+
+async function main() {
+  const seedPath = path.join(__dirname, 'seed-learn.json');
+  const raw = fs.readFileSync(seedPath, 'utf-8');
+  const data = JSON.parse(raw);
+
+  console.log(`Seeding ${data.courses.length} course(s)...`);
+
+  for (const course of data.courses) {
+    const { modules, ...courseData } = course;
+
+    // Upsert course (match by slug)
+    const upserted = await prisma.course.upsert({
+      where: { slug: courseData.slug },
+      update: {
+        title: courseData.title,
+        description: courseData.description,
+        difficulty: courseData.difficulty,
+        imageUrl: courseData.imageUrl,
+      },
+      create: {
+        slug: courseData.slug,
+        title: courseData.title,
+        description: courseData.description,
+        difficulty: courseData.difficulty,
+        imageUrl: courseData.imageUrl,
+      },
+    });
+
+    console.log(`  Course: ${upserted.title} (${upserted.id})`);
+
+    // Delete old modules (clean re-seed for dev)
+    await prisma.module.deleteMany({ where: { courseId: upserted.id } });
+
+    // Create modules — strip id/courseId since Prisma auto-generates them
+    if (modules && modules.length > 0) {
+      await prisma.module.createMany({
+        data: modules.map(({ id: _id, courseId: _cid, ...m }) => ({
+          ...m,
+          courseId: upserted.id,
+          quizData:
+            typeof m.quizData === 'string'
+              ? m.quizData
+              : JSON.stringify(m.quizData || []),
+        })),
+      });
+      console.log(`    → ${modules.length} module(s) created`);
+    }
+  }
+
+  console.log('Seeding complete.');
+}
+
+main()
+  .catch((e) => {
+    console.error(e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });