fix: P1 shell tooltip fixes + Today routing + workspaces API

Shell:
- WorkspaceHost: change tooltip from pluginId to human-readable title
- StatusBar: replace pluginId tooltips with label or id (3 occurrences)
- App: startup routing to Today view, sidebar Today nav item
- Sidebar: add Today button in Overview section
- TodaySurface: separate global vs workspace data (no fallthrough)

Plugin API:
- Add workspaces.list() method wrapping App.ListWorkspaces()
  (needed by browser-inbox workspace picker)

frontend/src/App.svelte

@@ -7,6 +7,7 @@
   import VaultSelection from './lib/shell/VaultSelection.svelte';
   import WorkbenchHost from './lib/shell/WorkbenchHost.svelte';
   import WorkspaceHost from './lib/shell/WorkspaceHost.svelte';
+  import TodaySurface from './lib/shell/TodaySurface.svelte';
   import * as App from '../wailsjs/go/api/App';
   import { debug } from './lib/log/debug.js';
   import { onMount } from 'svelte';
@@ -74,33 +75,20 @@
       if (err || !workspaces || workspaces.length === 0) {
         workspaceNodes = [];
         selectedWorkspaceName = '';
-        currentView = 'workspace-empty';
+        currentView = 'today';
         emitWorkspaceActive('');
         return;
       }
 
       workspaceNodes = workspaces.map(workspaceAsNode);
-      let currentWorkspace = null;
+      selectedWorkspaceName = '';
-      try {
+      currentView = 'today';
-        currentWorkspace = await App.GetCurrentWorkspace();
+      emitWorkspaceActive('');
-      } catch {
-        currentWorkspace = null;
-      }
-      const currentName = workspaceName(currentWorkspace);
-      const selected = workspaces.find((workspace) => workspaceName(workspace) === currentName) || workspaces[0];
-      selectedWorkspaceName = workspaceName(selected);
-      if (selectedWorkspaceName) {
-        try { await App.SetCurrentWorkspace(selectedWorkspaceName); } catch {}
-        currentView = 'workspace';
-      } else {
-        currentView = 'workspace-empty';
-      }
-      emitWorkspaceActive(selectedWorkspaceName);
     } catch (e) {
       debug.log('[App] openDefaultWorkspaceRoute ERROR', String(e));
       workspaceNodes = [];
       selectedWorkspaceName = '';
-      currentView = 'workspace-empty';
+      currentView = 'today';
       emitWorkspaceActive('');
     }
   }
@@ -394,6 +382,12 @@
           <PluginManager {activeSettingsPluginId} {activeSettingsPanelId} />
         {:else if currentView === 'workbench'}
           <WorkbenchHost {openedResource} />
+        {:else if currentView === 'today'}
+          <TodaySurface
+            workspaceRootPath=""
+            workspaceTitle=""
+            availableTools={[]}
+          />
         {:else if currentView === 'workspace' || currentView === 'workspace-empty'}
           <WorkspaceHost
             selectedWorkspaceName={selectedWorkspaceName}

frontend/src/lib/plugin-host/VerstakPluginAPI.js

@@ -502,6 +502,15 @@ export function createPluginAPI(pluginId) {
       }
     },
 
+    workspaces: {
+      list: function() {
+        assertActive('workspaces.list');
+        return callBackend(pluginId, 'workspaces.list', function() {
+          return App.ListWorkspaces();
+        });
+      }
+    },
+
     dispose: function() {
       if (disposed) return;
       disposed = true;

frontend/src/lib/shell/Sidebar.svelte

@@ -83,6 +83,20 @@
     <GlobalSearch />
   {/if}
 
+  {#if vaultOpen}
+    <div class="sidebar-section">
+      <span class="section-label">Overview</span>
+      <button
+        class="nav-item today-item"
+        on:click={() => window.dispatchEvent(new CustomEvent('verstak:nav', { detail: { viewId: 'today' } }))}
+        type="button"
+      >
+        <span class="nav-icon-today">★</span>
+        <span class="nav-label">Today</span>
+      </button>
+    </div>
+  {/if}
+
   {#if sidebarItems.length > 0}
     <div class="sidebar-section">
       <span class="section-label">Tools</span>
@@ -202,6 +216,21 @@
     color: #a78bfa;
   }
 
+  .today-item {
+    gap: 0.55rem;
+  }
+
+  .nav-icon-today {
+    width: 0.9rem;
+    height: 0.9rem;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 0.85rem;
+    color: #4ecca3;
+    flex-shrink: 0;
+  }
+
   .nav-label {
     overflow: hidden;
     text-overflow: ellipsis;

frontend/src/lib/shell/StatusBar.svelte

@@ -95,7 +95,7 @@
         class:status-bar-warning={item.handler}
         class="status-bar-item"
         data-status-item-id={item.id}
-        title={item.handler ? `${item.pluginId}: compact status only` : item.pluginId}
+        title={item.handler ? `${item.pluginId}: click for details` : (item.label || item.id)}
       >
         {#if item.handler}<Icon name="warning" size={11} class="status-warning-icon" />{/if}
         {item.label || item.id}
@@ -108,7 +108,7 @@
         class:status-bar-warning={item.handler}
         class="status-bar-item"
         data-status-item-id={item.id}
-        title={item.handler ? `${item.pluginId}: compact status only` : item.pluginId}
+        title={item.handler ? `${item.pluginId}: click for details` : (item.label || item.id)}
       >
         {#if item.handler}<Icon name="warning" size={11} class="status-warning-icon" />{/if}
         {item.label || item.id}
@@ -121,7 +121,7 @@
         class:status-bar-warning={item.handler}
         class="status-bar-item"
         data-status-item-id={item.id}
-        title={item.handler ? `${item.pluginId}: compact status only` : item.pluginId}
+        title={item.handler ? `${item.pluginId}: click for details` : (item.label || item.id)}
       >
         {#if item.handler}<Icon name="warning" size={11} class="status-warning-icon" />{/if}
         {item.label || item.id}

frontend/src/lib/shell/TodaySurface.svelte

@@ -13,6 +13,7 @@
   let activity = [];
   let worklogSuggestions = [];
 
+  $: isGlobal = !workspaceRootPath || String(workspaceRootPath).trim() === '';
   $: hasBrowserInbox = hasTool('browser inbox') || hasTool('inbox');
   $: hasActivity = hasTool('activity');
   $: hasFiles = hasTool('files');
@@ -111,24 +112,18 @@
       readPluginSettings('verstak.journal'),
     ]);
 
-    captures = rowsFor(browserSettings, [
+    if (isGlobal) {
-      workspaceKey('captures:workspace:'),
+      captures = rowsFor(browserSettings, ['captures:global', 'captures']).slice(0, 4);
-      'captures:global',
+      activity = rowsFor(activitySettings, ['events:global', 'events']).slice(0, 4);
-      'captures',
+      worklogSuggestions = rowsFor(journalSettings, ['suggestions', 'worklog']).slice(0, 4);
-    ]).slice(0, 4);
+    } else {
-
+      captures = rowsFor(browserSettings, [workspaceKey('captures:workspace:')]).slice(0, 4);
-    activity = rowsFor(activitySettings, [
+      activity = rowsFor(activitySettings, [workspaceKey('events:workspace:')]).slice(0, 4);
-      workspaceKey('events:workspace:'),
-      'events:global',
-      'events',
-    ]).slice(0, 4);
-
       worklogSuggestions = rowsFor(journalSettings, [
         workspaceKey('suggestions:workspace:'),
         workspaceKey('worklog:workspace:'),
-      'suggestions',
-      'worklog',
       ]).slice(0, 4);
+    }
 
     loading = false;
   }

frontend/src/lib/shell/WorkspaceHost.svelte

@@ -148,7 +148,7 @@
             role="tab"
             aria-selected={toolKey(tool) === toolKey(activeTool)}
             type="button"
-            title={tool.pluginId}
+            title={tool.title}
             on:click={() => selectTool(tool)}
           >
             {tool.title || tool.id}