新增 OPFS session 独立 browser workflow gate

wasm-port/docs/project-release-handoff.md

@@ -94,6 +94,10 @@ continuation records are in `../text15.txt`.
   API surface inventory row, and launch/workflow-overview APIs expose the same
   helper for external shells. The summary also has display and render-state
   helpers for caller-owned DOM.
+- OPFS/session persistence also has a dedicated browser workflow gate,
+  `verify_opfs_session_workflow_browser.sh`, covering save machine files, save
+  G-code, save session snapshot, session readiness, load into WASM, and
+  persistence summary output.
 - OPFS/session persistence is host-side storage glue. Parameter and tool-table
   behavior still comes from the LinuxCNC-backed interpreter SDK calls.
 - Sim-config inventory promotion remains evidence-driven and must keep
@@ -117,6 +121,7 @@ wasm-port/tools/verify_no_standalone_cnc_semantics.sh
 SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_interp_wasm.sh
 SKIP_INTERP_BUILD=1 wasm-port/tests/wasm/node/verify_sim_configs_inventory_wasm.sh
 SKIP_INI_BUILD=1 SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_ini_panel_browser.sh
+SKIP_INI_BUILD=1 SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_opfs_session_workflow_browser.sh
 SKIP_INI_BUILD=1 SKIP_INTERP_BUILD=1 wasm-port/tests/browser/verify_release_artifact_url_workflow_browser.sh
 wasm-port/tests/ui/node/verify_ui_node_smokes.sh
 wasm-port/tests/sdk/node/verify_project_release_artifact_url_workflow.sh
@@ -169,6 +174,7 @@ browser_ini_control_page_smoke=ok
 browser_ini_launch_smoke=ok
 browser_ini_workflow_overview_smoke=ok
 browser_ini_shell_integration_workflow_smoke=ok
+browser_opfs_session_workflow_smoke=ok
 browser_release_artifact_url_workflow_smoke=ok
 ```