docs: Remove changelog (now auto-generated by GitHub)

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: dimitri-yatsenko

docs/mkdocs.yaml

@@ -10,7 +10,6 @@ nav:
   - Architecture:
     - architecture/index.md
     - SQL Transpilation: architecture/transpilation.md
-  - Changelog: changelog.md
   - API Reference: api/ # defer to gen-files + literate-nav
 
 # ---------------------------- STANDARD -----------------------------

docs/src/changelog.md

@@ -19,7 +19,6 @@ This site contains **developer documentation** for contributors to the DataJoint
 
 - [Contributing Guide](develop.md) — Development environment setup
 - [Architecture](architecture/index.md) — Internal design documentation
-- [Changelog](changelog.md) — Release history
 - [API Reference](api/) — Auto-generated from source
 
 ## Quick Links