build(workspace): verify member wheel ownership

openspec/changes/uv-workspace-packaging/tasks.md

@@ -23,7 +23,8 @@
 
 ## 4. Build And Compatibility Verification
 
-- [ ] 4.1 Build wheels for every workspace member and inspect them to confirm the expected packages are included once.
+- [x] 4.1 Build wheels for every workspace member and inspect them to confirm the expected packages are included once.
+  - Runtime wheel contained 86 entries with no `cloud/` package; cloud wheel contained 15 entries with one copy of each expected `cloud`/`cloud.sdk` module and no Runtime-owned package.
 - [ ] 4.2 Install the built wheels into an isolated environment and smoke-test imports for existing Runtime and `cloud.*` modules.
 - [ ] 4.3 Run the complete non-integration Python test suite from the workspace root and fix packaging-only regressions without changing behavior.
 - [ ] 4.4 Verify the local REST and MCP factories still import and the console build remains independent of uv synchronization.

packages/cloud-platform/README.md

@@ -0,0 +1,7 @@
+# Device Cloud Platform
+
+`device-cloud-platform` provides the cloud scheduling, device-pool, plugin,
+and Python SDK modules for Device Agent Runtime.
+
+It is an outer uv workspace member that depends on `device-agent-runtime`.
+Runtime-owned packages do not depend on this distribution.

packages/cloud-platform/pyproject.toml

@@ -2,6 +2,7 @@
 name = "device-cloud-platform"
 version = "0.1.0"
 description = "Cloud scheduling, device pooling, plugins, and SDK for Device Agent Runtime."
+readme = "README.md"
 requires-python = ">=3.14"
 dependencies = [
     "device-agent-runtime==0.1.0",