Constant V2_WORKSPACE_TOPLEVEL_DISPATCH 

pub const V2_WORKSPACE_TOPLEVEL_DISPATCH: &'static [(&'static str, V2WorkspaceDest)];

Single canonical V2 → V3 top-level workspace dispatch.

Anything not in this list falls through to V2WorkspaceDest::AgentDefault.

Adding a new entry here is the ONLY edit needed to extend coverage — the orchestrator and the e2e test both iterate this table.