Update README and API files: improve documentation, remove unused cache refresh endpoint, and add GitHub link

Author: noworneverev

README.md

@@ -4,24 +4,24 @@
 *"Yet Another LeetCode API" - Because why reinvent the wheel? (But we did anyway 🛠️)*
 
 ## 🚀 Core Services
+
 - **Live Demo**: [leetcode-api-pied.vercel.app](https://leetcode-api-pied.vercel.app)
-- **Interactive Docs**: [docs.leetcode-api.vercel.app](https://leetcode-api-pied.vercel.app/docs)
-- **Google Sheet Integration**: [View Sheet](https://docs.google.com/spreadsheets/d/1sRWp95wqo3a7lLBbtNd_3KkTyGjx_9sctTOL5JOb6pA/edit?usp=sharing)  
+- **Interactive Docs**: [leetcode-api-pied.vercel.app/docs](https://leetcode-api-pied.vercel.app/docs)
+- **Google Sheet**: [View Sheet](https://docs.google.com/spreadsheets/d/1sRWp95wqo3a7lLBbtNd_3KkTyGjx_9sctTOL5JOb6pA/edit?usp=sharing)  
   *(Daily updated LeetCode question database with sorting/filtering)*
 
-A no-nonsense LeetCode API service for developers who want LeetCode data without the scraping headaches. Perfect for:
-- Building coding portfolios 🖼️
-- Tracking practice stats 📊
-- Creating LeetCode-powered apps 💻
-- Just messing around with API endpoints 🤹
+    **Enable Filtering/Sorting:**  
+    1. Select **Row 3**.  
+    2. Go to **Data > Filter views > Create new filter view**.  
 
 ## ⚡ Quick Start
 
 ```bash
 # Get today's daily challenge
 curl https://leetcode-api-pied.vercel.app/daily
 
-# Find a question by ID/slug
+# Find a problem by ID/slug
+curl https://leetcode-api-pied.vercel.app/problem/1
 curl https://leetcode-api-pied.vercel.app/problem/two-sum
 
 # Get user profile (try your LeetCode username!)
@@ -33,7 +33,7 @@ curl https://leetcode-api-pied.vercel.app/user/lee215
 | Endpoint                        | Method | Description                         | Example                                                                                     |
 |---------------------------------|--------|-------------------------------------|---------------------------------------------------------------------------------------------|
 | `/problems`                    | GET    | All LeetCode problems              | [/problems](https://leetcode-api-pied.vercel.app/problems)                             |
-| `/problem/{id_or_slug}`        | GET    | Get problem by ID/slug             | [/problem/two-sum](https://leetcode-api-pied.vercel.app/problem/two-sum)                |
+| `/problem/{id_or_slug}`        | GET    | Get problem by ID/slug             | [/problem/1](https://leetcode-api-pied.vercel.app/problem/1)<br />[/problem/two-sum](https://leetcode-api-pied.vercel.app/problem/two-sum)                |
 | `/search/{query}`              | GET    | Search for problems                | [/search?query=two%20sum](https://leetcode-api-pied.vercel.app/search?query=two%20sum)              |
 | `/random`                       | GET    | Random LeetCode problem            | [/random](https://leetcode-api-pied.vercel.app/random)                                    |
 | `/user/{username}`              | GET    | User profile & stats                | [/user/lee215](https://leetcode-api-pied.vercel.app/user/lee215)                      |
@@ -79,16 +79,16 @@ or download  `leetcode_questions.json`(updated daily) directly from the `data` f
 
 ## 🤔 Why This API?
 - Always Fresh Data 🥬
-Auto-updating cache system (no stale LeetCode questions!)
+  Auto-updating cache system (no stale LeetCode questions!)
 
 - Vercel-Ready ⚡
-One-click deployment with serverless architecture
+  One-click deployment with serverless architecture
 
 - No API Keys 🔓
-Free to use with sensible rate limits
+  Free to use with sensible rate limits
 
 - Real LeetCode Data 🔥
-Direct integration with LeetCode's GraphQL API
+  Direct integration with LeetCode's GraphQL API
 
 ---
 

src/api/api.py

@@ -342,14 +342,6 @@ async def get_daily_challenge():
 async def health_check():
     return {"status": "ok", "timestamp": time.time()}
 
-@app.get("/refresh", tags=["Admin"])
-async def refresh_cache():
-    # Force refresh the question cache regardless of the update interval
-    async with cache.lock:
-        await cache._fetch_all_questions()
-        cache.last_updated = time.time()
-    return {"detail": "Cache refreshed"}
-
 
 @app.get("/", response_class=HTMLResponse, include_in_schema=False)
 async def home():

src/api/home.py

@@ -51,9 +51,32 @@
     <body class="bg-gray-100 min-h-screen flex items-center justify-center">
         <div class="max-w-2xl mx-4 text-center">
             <div class="bg-white rounded-lg shadow-lg p-8 space-y-6">
-                <div class="flex justify-end">
-                    <button id="theme-toggle" class="text-gray-500 hover:text-gray-700 dark:text-gray-300 dark:hover:text-gray-100 focus:outline-none">
-                        <i id="theme-icon" class="fas fa-moon"></i>
+                <div class="flex justify-end space-x-2">
+                    <!-- GitHub Icon Button -->
+                    <a href="https://github.com/noworneverev/leetcode-api"
+                    target="_blank"
+                    class="flex items-center justify-center w-10 h-10 
+                            rounded-full 
+                            bg-gray-100 dark:bg-gray-700 
+                            text-gray-600 dark:text-gray-300 
+                            hover:bg-gray-200 dark:hover:bg-gray-600 
+                            hover:text-gray-800 dark:hover:text-gray-100 
+                            transition-colors duration-200 
+                            focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500">
+                        <i class="fab fa-github fa-lg"></i>
+                    </a>
+
+                    <!-- Theme Toggle Icon Button -->
+                    <button id="theme-toggle"
+                            class="flex items-center justify-center w-10 h-10 
+                                rounded-full 
+                                bg-gray-100 dark:bg-gray-700 
+                                text-gray-600 dark:text-gray-300 
+                                hover:bg-gray-200 dark:hover:bg-gray-600 
+                                hover:text-gray-800 dark:hover:text-gray-100 
+                                transition-colors duration-200 
+                                focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500">
+                        <i id="theme-icon" class="fas fa-moon fa-lg"></i>
                     </button>
                 </div>
                 <h1 class="text-4xl font-bold text-gray-800 mb-4">