Automated Research Report Generation with OpenAI, Wikipedia, Google Search, and Gmail/Telegram

# 📋 Research Report Workflow 🧠💻

This workflow generates a professional PDF research report on a given topic, sends it via Telegram, and emails🚀


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## 🔍 **Query Refiner**
- **What it does**: Refines the input topic for better readability. 🧹
- **Input**: Topic from the HTTP Request (e.g., "the best ai models 2025").
- **Output**: Formatted topic (e.g., "The Best AI Models 2025").
- **✨ Detail**: Capitalizes words and ensures "AI" is uppercase.

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## 📊 **Aggregate Research Data**
- **What it does**: Collects research data for the topic. 📚
- **Input**: Refined topic.
- **Output**: Research data (introduction, summary, key findings, etc.) with a timestamp.
- **⏰ Note**: The timestamp is used to date the report.

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## 🔗 **Merge Split Items**
- **What it does**: Combines and organizes research data into sections. 🗂️
- **Input**: Data from Aggregate Research Data.
- **Output**: Structured JSON with sections like `introduction`, `key_findings`, `sources`.
- **📑 Purpose**: Prepares data for the PDF report.

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## 📝 **Generate PDF HTML**
- **What it does**: Creates an HTML template for the PDF report. 🖥️
- **Input**: Refined topic and research data.
- **Output**: HTML content, file name (e.g., `research-report-the-best-ai-models-2025-2025-04-09.pdf`), and formatted date.
- **🎨 Features**:
  - Professional styling (Helvetica, Georgia fonts, deep blue accents).
  - Sections: Cover page, introduction, summary, key findings, etc.
  - Escapes special characters to prevent HTML errors.
- **⏳ Timestamp Fix**: Stores `rawTimestamp` and `formattedDate` (e.g., "April 9, 2025").

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## 📄 **Convert HTML to PDF (PDFShift)**
- **What it does**: Converts the HTML to a PDF using the PDFShift API. 🖨️
- **Input**: HTML content from the previous node.
- **Output**: JSON response with a URL to the generated PDF.
- **🔑 Requirement**: Needs a valid PDFShift API key.
- **⚠️ Note**: Outputs a URL, not the PDF binary data.

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## ⬇️ **Download PDF**
- **What it does**: Downloads the PDF from the URL provided by PDFShift. 📥
- **Input**: PDF URL from the Convert HTML to PDF node.
- **Output**: Binary PDF data (MIME type: `application/pdf`, ~98 KB).
- **📛 File Name**: Uses the file name from the previous node (e.g., `research-report-the-best-ai-models-2025-2025-04-09.pdf`).

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## 📱 **Gmail/Telegram**
- **What it does**: Sends the PDF to a Gmail/Telegram chat. 💬
- **Input**: PDF binary data and metadata (topic, formatted date).
- **Output**: Sends the PDF as a document to the specified chat.
- **📝 Caption**: