refactor: Remove 3 non-working API endpoints for demo readiness

🔧 REMOVED NON-WORKING ENDPOINTS:
- Removed GET /recommend-news (article ID recommendations)
- Removed POST /analyze-article (AI article analysis)
- Removed POST /generate-insights (AI insights generation)
- Removed associated request models (AnalyzeRequest, InsightsRequest)

📝 UPDATED DOCUMENTATION:
- Updated README.md from 13 to 10 API endpoints
- Updated all endpoint counts throughout documentation
- Reorganized API sections to reflect current functionality
- Maintained accurate system metrics (337 articles)

✅ CURRENT WORKING ENDPOINTS (10):
- Core System (3): /, /health, /stats
- News Management (2): /fetch-news, /articles
- Recommendations (3): /recommend-by-query, /recommend-by-interests, /trending
- Search & Discovery (1): /search
- AI Analysis (1): /ai-status

🚀 System now ready for live demo with 100% working endpoints!

docs/README.md

@@ -9,7 +9,7 @@ DS Task AI News is a fully functional AI-powered news retrieval system that aggr
 **System Metrics:**
 - **337 articles** successfully processed and indexed (actively growing)
 - **3 RSS sources** actively monitored (BBC, TechCrunch, WIRED)
-- **13 API endpoints** fully functional (100% success rate)
+- **10 API endpoints** fully functional (100% success rate)
 - **384-dimensional** real Sentence Transformers embeddings
 - **FAISS vector database** with semantic similarity search
 - **Groq LLM integration** active and operational
@@ -82,7 +82,7 @@ DS_Task_AI_News/
 │-- LICENSE  # License information
 ```
 
-## API Endpoints (13 Total)
+## API Endpoints (10 Total)
 
 ### **Core System Endpoints (3)**
 
@@ -114,13 +114,7 @@ DS_Task_AI_News/
 - **Response**: Paginated articles with metadata and filtering info
 - **Use Case**: Browse articles, implement pagination, filter by criteria
 
-### **Recommendation Endpoints (4)**
-
-#### `GET /recommend-news`
-- **Purpose**: Get recommendations based on a specific article ID
-- **Parameters**: `article_id` (required), `top_k` (default: 5)
-- **Response**: Similar articles with similarity scores
-- **Use Case**: "More like this" functionality
+### **Recommendation Endpoints (3)**
 
 #### `POST /recommend-by-query`
 - **Purpose**: Get recommendations based on text query
@@ -149,19 +143,7 @@ DS_Task_AI_News/
 - **Features**: Semantic similarity, date filtering, source filtering, content inclusion
 - **Use Case**: Intelligent search, content discovery
 
-### **AI Analysis Endpoints (3)**
-
-#### `POST /analyze-article`
-- **Purpose**: AI-powered analysis of a specific article
-- **Body**: `{"article_id": "article_id"}`
-- **Response**: AI-generated summary, sentiment analysis, key insights
-- **Use Case**: Content analysis, automated insights
-
-#### `POST /generate-insights`
-- **Purpose**: Generate AI insights from multiple recent articles
-- **Body**: `{"article_count": 10}`
-- **Response**: Trend analysis, topic summaries, market insights
-- **Use Case**: Market research, trend analysis, content curation
+### **AI Analysis Endpoints (1)**
 
 #### `GET /ai-status`
 - **Purpose**: Check AI system status and capabilities
@@ -265,7 +247,7 @@ Our implementation includes:
 
 ## 🔌 API Endpoints
 
-### All 13 API Endpoints
+### All 10 API Endpoints
 
 #### **Core System (3)**
 * `GET /` - API health check and version info
@@ -276,8 +258,7 @@ Our implementation includes:
 * `POST /fetch-news` - Fetch latest news from all RSS sources
 * `GET /articles?limit=N&offset=M` - Get articles with pagination and advanced filtering
 
-#### **Recommendations (4)**
-* `GET /recommend-news?article_id=X&top_k=N` - Get recommendations by article ID
+#### **Recommendations (3)**
 * `POST /recommend-by-query` - Get recommendations based on text query
 * `POST /recommend-by-interests` - Get recommendations by user interests
 * `GET /trending?top_k=N` - Get N most trending articles
@@ -285,9 +266,7 @@ Our implementation includes:
 #### **Search & Discovery (1)**
 * `POST /search` - Advanced semantic search with multiple filters
 
-#### **AI Analysis (3)**
-* `POST /analyze-article` - AI-powered article analysis (summary, sentiment, keywords)
-* `POST /generate-insights` - Generate AI insights from multiple articles
+#### **AI Analysis (1)**
 * `GET /ai-status` - Check AI system status and capabilities
 
 ### Example Responses