feat(ui): clean default header (usage chips, file viewer on; token chip, lifecycle log off)

The default desktop header right cluster is now: WS, CPU, MEM, File Viewer
folder button, 5H/7D plan-usage chips, gear. The token-count chip and the
lifecycle-log document button default OFF (both still honor stored prefs),
and the File Viewer button defaults ON (phones keep hiding it via mobile.css).
Templates ship the hidden/shown state so nothing flashes before settings load.
Capture scripts seed showTokenCount:false so screenshots match regardless of
server defaults.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

scripts/capture-readme-real.mjs

@@ -50,7 +50,7 @@ async function newCtx(browser) {
       try {
         localStorage.setItem('codeman:skin', skin);
         localStorage.setItem('codeman-font-size', String(font));
-        const blob = { skin, showFileBrowser: false, showProjectInsights: false };
+        const blob = { skin, showFileBrowser: false, showProjectInsights: false, showTokenCount: false };
         // Don't auto-hide subagent windows that belong to a non-active tab — the
         // subagent scene re-homes agents and needs both windows visible at once.
         blob.subagentActiveTabOnly = false;

scripts/capture-real-overview.mjs

@@ -79,6 +79,7 @@ const main = async () => {
           showMonitor: false,
           showSubagents: false,
           showProjectInsights: false,
+          showTokenCount: false,
         };
         if (planUsage) blob.showPlanUsageLimits = true;
         localStorage.setItem('codeman-app-settings', JSON.stringify(blob));

scripts/capture-subagent-gif.mjs

@@ -126,6 +126,7 @@ async function capture() {
         showMonitor: false,
         showProjectInsights: false,
         showFileBrowser: false,
+        showTokenCount: false,
       });
       localStorage.setItem('codeman-app-settings', JSON.stringify(existing));
     });
@@ -230,6 +231,7 @@ async function capture() {
         showMonitor: false,
         showProjectInsights: false,
         showFileBrowser: false,
+        showTokenCount: false,
       });
       localStorage.setItem('codeman-app-settings', JSON.stringify(existing));
     });

scripts/capture-subagent-screenshots.mjs

@@ -221,6 +221,7 @@ async function configureSettings(page) {
       subagentTrackingEnabled: true,
       subagentActiveTabOnly: false, // Show all subagents regardless of active tab
       showMonitor: true,
+      showTokenCount: false,
     };
     localStorage.setItem('codeman-app-settings', JSON.stringify(settings));
   });