fix: double-default display in project list + stale test updates

Use config.default_project as single source of truth for the Default
column in `bm project list`, removing checks against local DB and cloud
API is_default fields that could independently mark multiple projects.

Also updates tests that were out of date after get_project_mode changed
to default unknown projects to CLOUD:
- test_get_client_local_project_uses_asgi_transport: register "main" as LOCAL
- test_run_filters_cloud_projects_each_cycle: register local project in config
- test_new_project_addition_scenario: register projects as LOCAL in config
- test_get_project_mode_defaults_to_cloud: assert new CLOUD default

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: phernandez <paul@basicmachines.co>

src/basic_memory/cli/commands/project.py

@@ -161,13 +161,7 @@ def list_projects(
             else:
                 cli_route = ProjectMode.LOCAL.value
 
-            is_default = ""
-            if config.default_project == project_name:
-                is_default = "[X]"
-            if local_project is not None and local_project.is_default:
-                is_default = "[X]"
-            if cloud_project is not None and cloud_project.is_default:
-                is_default = "[X]"
+            is_default = "[X]" if config.default_project == project_name else ""
 
             has_sync = "[X]" if entry and entry.local_sync_path else ""
             mcp_stdio_target = "local" if local_project is not None else "n/a"
@@ -326,7 +320,16 @@ def remove_project(
         raise typer.Exit(1)
 
     async def _remove_project():
-        async with get_client() as client:
+        # Resolve workspace so cloud-only projects auto-route without --cloud
+        config = ConfigManager().config
+        entry = config.projects.get(name)
+        ws = None
+        if entry and entry.workspace_id:
+            ws = entry.workspace_id
+        elif config.default_workspace:
+            ws = config.default_workspace
+
+        async with get_client(project_name=name, workspace=ws) as client:
             project_client = ProjectClient(client)
             # Convert name to permalink for efficient resolution
             project_permalink = generate_permalink(name)
@@ -405,7 +408,16 @@ def set_default_project(
     """
 
     async def _set_default():
-        async with get_client() as client:
+        # Resolve workspace so cloud-only projects auto-route without flags
+        config = ConfigManager().config
+        entry = config.projects.get(name)
+        ws = None
+        if entry and entry.workspace_id:
+            ws = entry.workspace_id
+        elif config.default_workspace:
+            ws = config.default_workspace
+
+        async with get_client(project_name=name, workspace=ws) as client:
             project_client = ProjectClient(client)
             # Convert name to permalink for efficient resolution
             project_permalink = generate_permalink(name)