Report pending setup state in workspace target resolution

Co-authored-by: Orca <help@stably.ai>

notes/project-first-host-model-change-inventory.md

@@ -508,6 +508,8 @@ Already partially landed:
   known host before a checkout path exists
 - workspace creation host options distinguish pending/error/unsupported setup
   metadata from hosts that have no setup
+- workspace creation target resolution reports `setup-not-ready` when a
+  selected host has non-ready setup metadata
 
 Not complete yet:
 

notes/project-first-host-model-conversation.md

@@ -512,6 +512,8 @@ Already partially landed:
   known host before a checkout path exists
 - workspace creation host options distinguish pending/error/unsupported setup
   metadata from hosts that have no setup
+- workspace creation target resolution reports `setup-not-ready` when a
+  selected host has non-ready setup metadata
 
 Not complete yet:
 

notes/project-first-host-model-handoff.md

@@ -430,6 +430,8 @@ Already partially landed:
   known host before a checkout path exists
 - workspace creation host options distinguish pending/error/unsupported setup
   metadata from hosts that have no setup
+- workspace creation target resolution reports `setup-not-ready` when a
+  selected host has non-ready setup metadata
 
 Still needed:
 

notes/project-first-host-model.md

@@ -791,6 +791,9 @@ Landed so far:
 - Updated workspace creation host options so non-ready setup metadata appears
   with its real pending/error/unsupported state instead of being collapsed into
   a generic "project not set up" row.
+- Updated workspace creation target resolution so selecting a host with
+  non-ready setup metadata reports `setup-not-ready` instead of
+  `project-not-set-up-on-host`.
 - Added tests for local repos, SSH repos, same-provider multi-host grouping,
   no-identity same-name non-grouping, selector cache behavior, persistence
   backfill, repo mutation synchronization, renderer hydration, runtime RPC