docs(core): add Open source vs Commercial comparison page (#2382)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/core/concepts/oss_vs_commercial.md

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+---
+sidebar_label: Open source vs Commercial
+---
+
+# Open source vs Commercial
+
+Wren AI open source is the full engine: free, self-hosted, and driven by one engineer or agent through the CLI and SDK.
+
+Wren AI Commercial is the same engine built for a team. It runs as a hosted cloud service or as a self-hosted enterprise deployment, and it adds a web UI, accounts, managed access control, integrations, and support. Full overview: [Wren AI Commercial](/cp/overview).
+
+## Feature comparison
+
+| Capability | Open source | Commercial |
+| --- | :---: | :---: |
+| Free and fully self-hosted | ✅ | ✅ |
+| Fully managed cloud | ❌ | ✅ |
+| CLI and SDK for your own agents | ✅ | ✅ |
+| MCP server and hosted REST API | ❌ | ✅ |
+| Access control defined in MDL (RLAC/CLAC) | ✅ | ✅ |
+| GenBI dashboards | ✅ | ✅ |
+| Web UI for non-technical users | ❌ | ✅ |
+| Slack and Microsoft Teams | ❌ | ✅ |
+| Built-in agentic sandbox mode | ❌ | ✅ |
+| Accounts, roles, multi-user | ❌ | ✅ |
+| SSO, LDAP, SCIM provisioning | ❌ | ✅ |
+| RLS/CLS per user, session properties, audit log | ❌ | ✅ |
+| Evaluation, AI Advisor, feedback tracing | ❌ | ✅ |
+| Vendor support | ❌ | ✅ |
+
+## Consider Commercial when
+
+- A team needs accounts, roles, and SSO, or LDAP/SCIM from your identity provider.
+- Non-technical users want to ask in a browser, Slack, or Teams.
+- You need RLS/CLS enforced per real user, or multi-tenant isolation for your own customers.
+- You want a managed cloud, scheduled dashboards, or vendor support.
+
+## Talk to us
+
+See [Wren AI Commercial](/cp/overview) for details and to reach the team. Open source stays first-class either way.