Add portfolio content and design spec for Otis

content/projects.md

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+# Projects
+
+## AI Schedule Planner
+**Type:** AI-powered workflow automation  
+**Stack:** n8n, DeepSeek (LLM), Google Calendar, Gmail  
+
+An AI agent that handles schedule planning through natural language. Managers describe what they need in plain text — the agent checks calendar availability, generates a plan, and drafts emails with proper formatting. Supports multilingual interaction.
+
+**Highlights:**
+- Natural language input → structured schedule assignments
+- Calendar integration for conflict detection
+- Auto-generated email drafts ready to send
+- Multilingual support (German/English)
+
+---
+
+## PDF Manager
+**Type:** Document processing API  
+**Stack:** Node.js, Express, pdf-lib, Multer  
+
+A REST API service for PDF manipulation. Upload documents, split them by page ranges, and rename output files based on extracted metadata. Built for integration into larger document processing pipelines.
+
+**Highlights:**
+- Split PDFs by page range or content markers
+- Automatic file naming from document metadata
+- Batch processing support
+- Dockerized for easy deployment
+
+---
+
+## DocxTemplater Server
+**Type:** Document generation API  
+**Stack:** Node.js, Express, docxtemplater, PizZip  
+
+A template-based Word document generation service. Upload a .docx template with placeholder variables, send data via API, get a finished document back. Used for contracts, letters, HR forms — anything with a repeating structure.
+
+**Highlights:**
+- Variable substitution in Word templates
+- Supports tables, loops, and conditional sections
+- REST API — integrates with any system
+- Dockerized for easy deployment
+
+---
+
+## Approval Workflow Engine
+**Type:** Workflow automation  
+**Stack:** n8n, Gmail, ntfy  
+
+A scheduled workflow that handles recurring procurement with a human-in-the-loop approval step. Runs on a configurable schedule, sends an approval request to the relevant team, and on approval automatically emails the supplier. Confirmation sent via push notification.
+
+**Highlights:**
+- Configurable scheduled triggers
+- Email-based approval workflow
+- Auto-generated supplier/vendor emails
+- Push notification confirmations