feat: use workspace identity for telemetry (#2371)

Co-authored-by: dadachann <185672915+dadachann@users.noreply.github.com>

tests/unit_tests/telemetry/test_workspace_identity.py

@@ -0,0 +1,31 @@
+from __future__ import annotations
+
+import uuid
+from types import SimpleNamespace
+
+
+def test_standard_oss_instance_id_aligns_to_embedded_uuid():
+    from langbot.pkg.workspace.identity import workspace_uuid_from_instance_id
+
+    instance_uuid = "a711d9e4-0953-443f-a0e9-7dd50193a79f"
+
+    assert workspace_uuid_from_instance_id(instance_uuid) == instance_uuid
+    assert workspace_uuid_from_instance_id(f"instance_{instance_uuid}") == instance_uuid
+
+
+def test_custom_legacy_instance_id_maps_to_stable_valid_uuid():
+    from langbot.pkg.workspace.identity import workspace_uuid_from_instance_id
+
+    first = workspace_uuid_from_instance_id("instance_migration_test")
+    second = workspace_uuid_from_instance_id("instance_migration_test")
+
+    assert first == second
+    assert str(uuid.UUID(first)) == first
+
+
+def test_query_telemetry_identity_uses_execution_workspace_only():
+    from langbot.pkg.telemetry.identity import workspace_identity
+
+    identity = workspace_identity(SimpleNamespace(workspace_uuid="workspace-a", instance_uuid="instance-a"))
+
+    assert identity == {"workspace_uuid": "workspace-a"}