Add specifications for gamification, generation, and R42 chat services

- Introduced gamification service spec detailing responsibilities, API surface, XP calculation, levels, streaks, badges, milestone cards, and heatmap data.
- Added generation service spec outlining the process for generating micro learning content, including API endpoints, AI call configuration, prompt strategies, and error handling.
- Created R42 chat service spec covering chatbot interactions, retrieval pipeline, prompt construction, response generation, and stateless design principles.

app/services/curriculum/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "curriculum",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "tsc",
+    "start": "node dist/index.js"
+  },
+  "dependencies": {
+    "@anthropic-ai/sdk": "^0.24",
+    "fastify": "^4",
+    "pocketbase": "^0.21",
+    "uuid": "^9",
+    "zod": "^3"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/uuid": "^9",
+    "dotenv": "^16",
+    "tsx": "^4",
+    "typescript": "^5"
+  }
+}