docs: add comprehensive external links to all guides

- Add Mistral AI, Vibe Code, and Bruno links to USING_VIBE_AGENTS.md
- Add Bruno, Chai, Mistral AI links to COLECTION_GUIDE.md
- Add Bruno, Chai, Mistral AI, Vibe CLI links to CRUD_CHAINING_GUIDE.md
- Organize links by category (Bruno, Testování, Vibe & Mistral AI)

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

docs/CRUD_CHAINING_GUIDE.md

@@ -330,6 +330,17 @@ runtime:
 
 ## 📚 Dokumentace
 
-- [Bruno - Environment Variables](https://www.usebruno.com/docs/collections/environments)
-- [Bruno - Scripting](https://www.usebruno.com/docs/scripting)
-- [Chai Assertions](https://www.chaijs.com/api/bdd/)
+### Bruno
+- [Bruno - Environment Variables](https://www.usebruno.com/docs/collections/environments) – Práce s proměnnými
+- [Bruno - Scripting](https://www.usebruno.com/docs/scripting) – Skriptování v Bruno
+- [Bruno Dokumentace](https://www.usebruno.com/docs) – Kompletní dokumentace
+- [Bruno GitHub](https://github.com/usebruno/bruno) – Open-source repozitář
+
+### Testovací knihovny
+- [Chai Assertions](https://www.chaijs.com/api/bdd/) – Asertace v testech
+
+### Vibe & Mistral AI
+- [Mistral AI](https://mistral.ai/) – Hlavní web společnosti
+- [Mistral AI Dokumentace](https://docs.mistral.ai/) – Oficiální dokumentace
+- [Vibe Code](https://mistral.ai/products/vibe/code) – AI asistent pro vývoj
+- [Vibe CLI GitHub](https://github.com/mistralai/vibe) – Repozitář Vibe CLI