docs: split organization pages and simplify diagram controls

docs/organization/collaboration.mdx

@@ -0,0 +1,23 @@
+---
+title: Collaboration
+description: How Eldorado departments combine their responsibilities to deliver shared business outcomes.
+---
+
+Departments collaborate around shared outcomes while retaining their own team ownership and accountability. See [Structure](./structure.mdx) for department and squad responsibilities.
+
+## How the departments work together
+
+| Business outcome | Collaboration |
+| --- | --- |
+| Better buyer experience | Product defines improvements; Technology delivers them; Operations brings customer feedback; Data & AI measures the result. |
+| Stronger seller experience | Product and Technology develop seller tools; Operations supports sellers; Finance manages financial processes. |
+| Safe and trustworthy trading | Risk & Fraud, Trust & Resolution, Architecture & Security, and Finance coordinate controls and incident responses. |
+| Sustainable growth | Marketing develops demand; Product improves conversion and retention; Finance measures profitability. |
+| AI-powered execution | Data & AI supports engineering and develops marketplace intelligence; Operations improves service and quality workflows. |
+
+Department leaders remain accountable for outcomes, controls and service quality as AI becomes part of everyday work.
+
+## Related pages
+
+- [Structure](./structure.mdx) — departments, squads and responsibilities.
+- [SDLC — Software Delivery Life Cycle](./sdlc.mdx) — leadership and delivery responsibilities.