feat(placement): emit sie-cluster Helm values from a plan

.coveragerc

@@ -9,6 +9,7 @@
 source_pkgs =
     sie_config
     sie_mcp
+    sie_placement
     sie_sdk
     sie_server
 relative_files = True

CONTRIBUTING.md

@@ -67,6 +67,7 @@ git switch -c <next-topic-branch> upstream/main
 | [`packages/sie_sdk`](packages/sie_sdk/README.md) | Python client SDK and public request and response types |
 | `packages/sie_config` | Python configuration service |
 | [`packages/sie_mcp`](packages/sie_mcp/README.md) | Python MCP edge service, plugin, and agent skill |
+| [`packages/sie_placement`](packages/sie_placement/README.md) | Standard-library Python schemas for placement planner inputs and plans; a workspace package that is not published |
 | [`packages/sie_audio_prep`](packages/sie_audio_prep/README.md) | Native audio preparation extension with Python bindings |
 | [`packages/sie_ts_sdk`](packages/sie_ts_sdk/README.md) | TypeScript client SDK |
 | [`packages/sie_gateway`](packages/sie_gateway/README.md) | Rust gateway for routing, queuing, API compatibility, and cluster state |

packages/sie_placement/pyproject.toml

@@ -0,0 +1,19 @@
+[project]
+name = "sie-placement"
+version = "0.0.0"
+description = "SIE placement planner - versioned input and plan documents for measured-only placement"
+requires-python = ">=3.12,<3.13"
+license = { text = "Apache-2.0" }
+dependencies = []
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/sie_placement"]
+
+[dependency-groups]
+dev = [
+    "pytest>=9.0.3",
+]