🔗 Fix dynamic API URLs for local and Hugging Face Spaces deployment

Updated API endpoints page to automatically detect environment and show correct URLs:

**Local Development:**
- Base URL: http://localhost:7861
- Shows "Local Development" environment indicator

**Hugging Face Spaces:**
- Base URL: https://your-space-name.hf.space:7861
- Shows "Hugging Face Spaces" environment indicator
- Uses SPACE_ID and SPACE_NAME environment variables

**Features:**
- Automatic environment detection using os.getenv('SPACE_ID')
- Dynamic URL generation for all API examples
- Environment-aware documentation
- Works seamlessly in both development and production

All cURL, Python, and JavaScript examples now use the correct base URL
automatically based on where the application is running.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

py/pages/api_endpoints.py

@@ -3,19 +3,56 @@
 """
 
 import gradio as gr
+import os
+
+def get_api_base_url():
+    """Get the correct API base URL based on environment"""
+    # Check if we're on Hugging Face Spaces
+    space_id = os.getenv('SPACE_ID')
+
+    if space_id:
+        # We're on Hugging Face Spaces
+        space_name = os.getenv('SPACE_NAME', 'your-space-name')
+        return f"https://{space_name}.hf.space:7861"
+    else:
+        # We're running locally
+        return "http://localhost:7861"
 
 def create_api_endpoints_page():
     """Create the REST API endpoints tab"""
 
+    # Get the correct base URL
+    api_base_url = get_api_base_url()
+    is_hf_spaces = os.getenv('SPACE_ID') is not None
+
     # REST API Endpoints Tab
     with gr.Tab("🌐 REST API Endpoints"):
-        gr.Markdown("""
-        ## 🌐 REST API Endpoints
+        # Create dynamic content based on environment
+        if is_hf_spaces:
+            environment_info = f"""
+            ## 🌐 REST API Endpoints
+
+            Your sentiment analysis model is now available via REST API!
+
+            **📍 Environment:** Hugging Face Spaces
+            **🔗 Base URL:** `{api_base_url}`
+            **📚 Interactive Docs:** {api_base_url}/docs
+            """
+        else:
+            environment_info = f"""
+            ## 🌐 REST API Endpoints
+
+            Your sentiment analysis model is now available via REST API!
 
-        Your sentiment analysis model is now available via REST API!
+            **📍 Environment:** Local Development
+            **🔗 Base URL:** `{api_base_url}`
+            **📚 Interactive Docs:** {api_base_url}/docs
+            """
 
-        **Base URL:** `http://localhost:7861` (or your Hugging Face Space URL + `/api`)
+        gr.Markdown(environment_info)
 
+        # Static content
+        gr.Markdown(f"""
         ### Available Endpoints:
 
         #### 📝 Single Text Analysis
@@ -50,13 +87,13 @@ def create_api_endpoints_page():
         **POST** `/memory/cleanup`
 
         ### 📚 Interactive API Documentation
-        Visit **http://localhost:7861/docs** for interactive API documentation with Swagger UI.
+        Visit **{api_base_url}/docs** for interactive API documentation with Swagger UI.
 
         ### 🚀 Usage Examples
 
         **cURL Example:**
         ```bash
-        curl -X POST "http://localhost:7861/analyze" \\
+        curl -X POST "{api_base_url}/analyze" \\
              -H "Content-Type: application/json" \\
              -d '{{"text": "Giảng viên dạy rất hay và tâm huyết."}}'
         ```
@@ -66,7 +103,7 @@ def create_api_endpoints_page():
         import requests
 
         response = requests.post(
-            "http://localhost:7861/analyze",
+            "{api_base_url}/analyze",
             json={{"text": "Giảng viên dạy rất hay và tâm huyết."}}
         )
         result = response.json()
@@ -76,7 +113,7 @@ def create_api_endpoints_page():
 
         **JavaScript Example:**
         ```javascript
-        const response = await fetch('http://localhost:7861/analyze', {{
+        const response = await fetch('{api_base_url}/analyze', {{
             method: 'POST',
             headers: {{ 'Content-Type': 'application/json' }},
             body: JSON.stringify({{