参考所有分组，完成尽量多的内容：同步 OPFS 与 smoke 映射

结论：未扩展 smoke 功能行为，仅收紧 OPFS workspace、directory、policy 浏览器烟测和 source-map 守卫。

LinuxCNC 来源依据：src/emc/rs274ngc/rs274ngc_pre.cc 的 restore_parameters/save_parameters/read_text 参数文件与文件读取语义，以及 interp_internal.hh 的 rs274ngc.var/.bak 常量边界。

检查通过：./check-linuxcnc-opfs-source-map.sh；./check-linuxcnc-wasm-smoke-source-map.sh；./check-linuxcnc-workstreams-source-map.sh；./test-native.sh；./test-linuxcnc-source-link.sh。

docs/linuxcnc-opfs-source-map.md

@@ -26,7 +26,10 @@ persistence. It is a policy and bridge map only; it must not add independent fil
 | `web/src/app.js` | Persists browser programs at `programs/current.ngc` and LinuxCNC parameters at `parameters/rs274ngc.var`. |
 | `web/test-browser-wasm-smoke-opfs-basic-sections.js` | Verifies OPFS program file reads through LinuxCNC `read_text()` and rejects unsafe paths. |
 | `web/test-browser-wasm-smoke-opfs-parameter-sections.js` | Verifies OPFS parameter restore, save, `.new`, `.bak`, failure, and stale-state semantics. |
+| `web/test-browser-wasm-smoke-opfs-workspace-sections.js` | Aggregates OPFS basic, parameter, mirror, and directory checks under browser OPFS availability. |
 | `web/test-browser-wasm-smoke-opfs-mirror-sections.js` | Verifies OPFS/WASM mirror persistence used by source-backed file parsing and parameter movement. |
+| `web/test-browser-wasm-smoke-opfs-directory-sections.js` | Verifies OPFS directory persistence and WASM mirror refresh without polluting mirrors during metadata queries. |
+| `web/test-browser-wasm-smoke-opfs-policy-sections.js` | Verifies OPFS workspace and mount policy, including the browser rule that OPFS cannot be disabled. |
 | `web/test-browser-wasm-smoke-app-sections.js` | Verifies app-level OPFS program, parameter, backup, and reload behavior. |
 
 ## Browser Bridge Boundary
@@ -34,6 +37,9 @@ persistence. It is a policy and bridge map only; it must not add independent fil
 - `web/src/wasm-core.js` must keep LinuxCNC parameter persistence routed
   through an OPFS workspace.
 - Browser contexts with OPFS support must not disable OPFS.
+- OPFS workspace paths must remain relative paths inside the CNC workspace, and
+  OPFS mount points must remain absolute paths inside the Emscripten
+  filesystem.
 - Browser app and wasm bridge code must not use Local Storage, IndexedDB,
   File Picker, Directory Picker, WebKit filesystem, or FileReader persistence
   paths for CNC programs, LinuxCNC parameter files, or mirrored workspace files.

docs/linuxcnc-wasm-smoke-source-map.md

@@ -34,7 +34,12 @@ OPFS-only is the required boundary.
 | `test-web-wasm-node-smoke.cjs` | Exercises the C ABI, `web/src/wasm-core.js`, generated switchkins config cases, and source-backed kinematics events. |
 | `test-web-wasm-browser-smoke.sh` | Runs browser checks after verifying copied WASM artifacts and smoke module structure. |
 | `web/test-browser-wasm-smoke-linuxcnc-sections.js` | Exercises LinuxCNC browser parsing and generated switchkins cases without INI_FILE_NAME remap-load aliases. |
+| `web/test-browser-wasm-smoke-opfs-workspace-sections.js` | Aggregates OPFS basic, parameter, mirror, and directory sections under browser OPFS availability. |
+| `web/test-browser-wasm-smoke-opfs-basic-sections.js` | Exercises OPFS-backed program file reads through LinuxCNC `read_text()` and rejects unsafe paths. |
 | `web/test-browser-wasm-smoke-opfs-parameter-sections.js` | Exercises LinuxCNC parameter restore/save/backup semantics through OPFS. |
+| `web/test-browser-wasm-smoke-opfs-mirror-sections.js` | Exercises OPFS/WASM mirror persistence used by source-backed program parsing and parameter movement. |
+| `web/test-browser-wasm-smoke-opfs-directory-sections.js` | Exercises OPFS directory persistence and WASM mirror refresh without filesystem persistence outside OPFS. |
+| `web/test-browser-wasm-smoke-opfs-policy-sections.js` | Exercises browser OPFS workspace and mount policy, including the rule that OPFS cannot be disabled. |
 | `web/test-browser-wasm-smoke-app-sections.js` | Verifies the browser app uses OPFS program and parameter persistence. |
 
 ## Boundaries
@@ -46,8 +51,8 @@ OPFS-only is the required boundary.
 - Generated switchkins config smoke cases must continue to come from
   `web/public/linuxcnc_switchkins_remap_config_cases.json`.
 - The browser smoke shell guard also pins required section names for LinuxCNC
-  browser parsing, OPFS parameter restore/save failure handling, and browser
-  app OPFS reload coverage.
+  browser parsing, OPFS workspace/policy/directory handling, OPFS parameter
+  restore/save failure handling, and browser app OPFS reload coverage.
 - Smoke wrappers must keep positive minimum coverage thresholds so accidental
   section loss is visible.