推进 INI 面板 launch mount-state DOM 渲染

wasm-port/docs/panel-entry.md

@@ -224,7 +224,9 @@ when an outer shell needs mount-state checks as stable read-only label/value
 rows. Use `createIniPanelShellSessionHandoffPackageMountRenderState()` or
 `linuxCncIniPanelLaunchApi.getShellSessionHandoffPackageMountRenderState()`
 when those rows need a status line and `[data-handoff-shell]` style dataset
-flags for DOM rendering.
+flags for DOM rendering. The launch page renders the default waiting mount
+state into `[data-handoff-mount]`, `[data-handoff-mount-status]`, and
+`[data-handoff-mount-rows]` without opening the control page.
 The browser workflow smoke
 `tests/browser/ini_panel_shell_integration_workflow_smoke.html` verifies the
 same external shell handoff: read integration manifest, pass readiness gate,

wasm-port/runtime/ui/ini-panel/launch.html

@@ -95,6 +95,10 @@
         <p data-handoff-status>Checking shell handoff compatibility.</p>
         <dl data-handoff-rows></dl>
       </section>
+      <section class="handoff-status" aria-label="Shell handoff mount readiness" data-handoff-mount>
+        <p data-handoff-mount-status>Checking shell handoff mount readiness.</p>
+        <dl data-handoff-mount-rows></dl>
+      </section>
     </section>
   </main>
   <script type="module">
@@ -130,6 +134,24 @@
       detail.textContent = row.value;
       handoffRows.append(term, detail);
     }
+    const handoffMountRenderState = shellViewModel.shellSessionHandoffPackageMountRenderState;
+    const handoffMount = document.querySelector("[data-handoff-mount]");
+    handoffMount.dataset.handoffPhase = handoffMountRenderState.dataset.handoffPhase;
+    handoffMount.dataset.handoffReady = handoffMountRenderState.dataset.handoffReady;
+    handoffMount.dataset.handoffScope = handoffMountRenderState.dataset.handoffScope;
+    document.querySelector("[data-handoff-mount-status]").textContent = handoffMountRenderState.statusLine;
+    const handoffMountRows = document.querySelector("[data-handoff-mount-rows]");
+    for (const row of handoffMountRenderState.rows) {
+      const term = document.createElement("dt");
+      term.dataset.handoffMountRow = row.id;
+      term.dataset.handoffMountStatus = row.status;
+      term.textContent = row.label;
+      const detail = document.createElement("dd");
+      detail.dataset.handoffMountValue = row.id;
+      detail.dataset.handoffMountStatus = row.status;
+      detail.textContent = row.value;
+      handoffMountRows.append(term, detail);
+    }
 
     window.linuxCncIniPanelLaunchApi = {
       isSupportedLaunchApiManifest: isSupportedIniPanelLaunchApiManifest,

wasm-port/tests/browser/ini_panel_launch_smoke.html

@@ -487,6 +487,36 @@
         "none",
         "shell session handoff DOM blocking reasons",
       );
+      assertEqual(
+        launchDoc.querySelector("[data-handoff-mount-status]").textContent,
+        "Blocked: session-load-state",
+        "shell session handoff mount DOM status",
+      );
+      assertEqual(
+        launchDoc.querySelector("[data-handoff-mount]").dataset.handoffPhase,
+        "blocked",
+        "shell session handoff mount DOM phase",
+      );
+      assertEqual(
+        launchDoc.querySelector("[data-handoff-mount]").dataset.handoffReady,
+        "false",
+        "shell session handoff mount DOM ready",
+      );
+      assertEqual(
+        launchDoc.querySelector("[data-handoff-mount]").dataset.handoffScope,
+        "mount",
+        "shell session handoff mount DOM scope",
+      );
+      assertEqual(
+        launchDoc.querySelector('[data-handoff-mount-value="session-load-state"]').textContent,
+        "waiting-panel",
+        "shell session handoff mount DOM session state",
+      );
+      assertEqual(
+        launchDoc.querySelector('[data-handoff-mount-value="session-load-state"]').dataset.handoffMountStatus,
+        "blocked",
+        "shell session handoff mount DOM session status",
+      );
       assertEqual(
         shellSessionHandoffSummary.targetPage.href,
         "./control-page.html",

wasm-port/tests/ui/node/verify_ini_panel_launch_api_manifest.mjs

@@ -182,6 +182,9 @@ assert.match(launchText, /\bgetShellSessionHandoffPackageMountState\b/);
 assert.match(launchText, /\bgetShellSessionHandoffPackageMountDisplayViewModel\b/);
 assert.match(launchText, /\bgetShellSessionHandoffPackageMountRenderState\b/);
 assert.match(launchText, /\bisSupportedShellSessionHandoffPackage\b/);
+assert.match(launchText, /\bdata-handoff-mount\b/);
+assert.match(launchText, /\bdata-handoff-mount-status\b/);
+assert.match(launchText, /\bdata-handoff-mount-rows\b/);
 assert.match(launchText, /\blinuxCncIniPanelLaunchApi\b/);
 
 console.log("ini_panel_launch_api_manifest_node_smoke=ok");