docs: complete API documentation folder

docs/index.md — Overview, quick start, features
docs/endpoints.md — Full API reference (27 endpoints)
docs/streaming.md — Streaming flow guide (3-step)
docs/examples.md — cURL, JavaScript, Python, Node.js examples
docs/architecture.md — Project structure, tech stack, design

Also fixes streaming endpoints:
- episodeList: Parse AJAX JSON, extract server_ids/timestamp/mal_id
- streamInfo: Parse server list HTML into structured objects
- streamInfo: Parse stream URL from JSON response

docs/index.md

@@ -0,0 +1,65 @@
+# AniKotoAPI Documentation
+
+> Free REST API for anime data. Browse, search, stream — no API key required.
+
+## Overview
+
+AniKotoAPI is a free, open-source REST API that provides anime data scraped from [anikototv.to](https://anikototv.to). It's built with Node.js, Express, and Cheerio, and deployed on Vercel.
+
+**Base URL:** `https://anikototvapi.vercel.app/api`
+
+## Quick Start
+
+```bash
+# Get homepage data
+curl https://anikototvapi.vercel.app/api
+
+# Search for anime
+curl "https://anikototvapi.vercel.app/api/search?keyword=naruto"
+
+# Get anime info
+curl "https://anikototvapi.vercel.app/api/info?id=naruto-shippuden"
+```
+
+## Features
+
+- **24+ Endpoints** — Home, search, info, episodes, streaming, schedule, and more
+- **No API Key** — Just make requests, no registration needed
+- **In-Memory Cache** — 5-minute TTL for fast responses
+- **CORS Enabled** — Access from any domain
+- **JSON Responses** — Standardized `{success, results}` format
+
+## Documentation
+
+- [API Endpoints Reference](endpoints.md) — Complete endpoint documentation
+- [Streaming Flow Guide](streaming.md) — How to get stream URLs
+- [Code Examples](examples.md) — cURL, JavaScript, Python
+- [Architecture](architecture.md) — Project structure and design
+
+## Response Format
+
+All endpoints return JSON in this format:
+
+```json
+{
+  "success": true,
+  "results": { ... }
+}
+```
+
+Error responses:
+
+```json
+{
+  "success": false,
+  "message": "Error description"
+}
+```
+
+## Rate Limiting
+
+There are no explicit rate limits, but the API uses a 5-minute in-memory cache. Repeated requests for the same data will be served from cache.
+
+## Disclaimer
+
+This API is for **educational purposes only**. It scrapes publicly available data from anikototv.to. We are not affiliated with or endorsed by AniKoto. All content belongs to its respective owners.