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

eslint.config.mjs

@@ -0,0 +1,13 @@
+import { dirname } from "path";
+import { fileURLToPath } from "url";
+import { FlatCompat } from "@eslint/eslintrc";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+});
+
+const eslintConfig = [...compat.extends("next/core-web-vitals")];
+export default eslintConfig;