按text25.txt规划，实现L4-PYTHON-REMAP接入数控系统仿真系统

结论：已接入Python remap runtime proof chain，覆盖native、WASM、browser与release gate证据链；继续保持promotion_allowed=0，不批量解锁L4-PYTHON-REMAP。

wasm-port/runtime/sdk/README.md

@@ -589,6 +589,19 @@ private module paths:
 - `saveToolDbFile()`, `loadToolDbFile()`, `saveToolDbTranscript()`, and
   `loadToolDbTranscript()` for OPFS persistence of the DB flat file and protocol
   transcript artifacts.
+- `createLinuxCncPythonRemapRuntimePort()`, `createPythonRemapLifecyclePlan()`,
+  `validatePythonRemapLifecycleTranscript()`, and
+  `createPythonRemapRuntimeDiagnostics()` for the first Python remap lifecycle
+  contract around `axis/remap/stop-lookahead/nc_files`. Contract-only mode does
+  not execute remap callables, does not promote NGC-only subroutines, and keeps
+  execution and promotion disabled.
+- `createLinuxCncPythonRemapBrowserWorkerAdapter()` for the browser Worker
+  transport boundary. The bundled worker reports
+  `blocked_browser_python_wasm_runtime_missing` until a Python/WASM provider
+  supplies the controlled lifecycle methods for initializing Python, applying
+  the INI `[PYTHON]PATH_PREPEND`, executing `[PYTHON]TOPLEVEL`, importing the
+  configured module, looking up the configured callable, and observing the
+  generator lifecycle.
 
 These helpers only move and validate host files. Parameter and tool-table
 effects still come from the LinuxCNC-backed interpreter SDK methods they call.