feat: add bilingual blog post about dialog-based applications

Add new blog post "Computer, ..." exploring how modern language models
enable Star Trek-like computer interactions. Includes a practical
experiment with dialog-based member management using MCP and GraphQL.

Features:
- German version at /de/blog/dialogbasierte-anwendungen/
- English version at /en/blog/dialog-based-applications/
- Translated URL slugs linked via translationKey
- Content sourced from Notion with natural English translation
- OpenSpec proposal with validation passing

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

Co-Authored-By: Claude <noreply@anthropic.com>

openspec/changes/add-dialogbasierte-anwendungen-post/proposal.md

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+# Proposal: Add Dialogbasierte Anwendungen Blog Post
+
+## Context
+
+Create a new bilingual blog post based on Notion content about dialog-based applications and language model interactions. The post explores how modern language models enable Star Trek-like computer interactions and includes a practical experiment with a member management system.
+
+## Motivation
+
+This blog post:
+- Shares a practical exploration of dialog-based interfaces using language models
+- Documents a real-world experiment with MCP and GraphQL
+- Demonstrates the potential of conversational UI for business applications
+- Provides both German and English versions for broader reach
+
+## Scope
+
+### In Scope
+- Create new blog post page bundle under `content/blog/dialogbasierte-anwendungen/`
+- German version (original from Notion)
+- English version (AI-translated)
+- Proper frontmatter with title, date, description
+- All external links and references preserved
+- Validation that post renders correctly in Hugo
+
+### Out of Scope
+- No changes to existing blog posts
+- No template or layout modifications
+- No Hugo configuration changes
+- No new images or assets (uses external links)
+
+## Dependencies
+
+None. This is a new content addition that doesn't affect existing functionality.
+
+## Risks
+
+Low risk. Adding new content only, no structural changes.
+
+## Success Criteria
+
+- Blog post exists in both German and English
+- Content accurately reflects Notion source
+- English translation is natural and maintains meaning
+- Hugo builds successfully
+- Post displays correctly in both languages
+- All links are functional
+- OpenSpec validation passes
+
+## Related Changes
+
+None. First implementation of blog post content addition workflow.