Polish UI: enhance dialogs, command palette, and page layouts

Expand NewIssueDialog with richer form fields. Add NewProjectDialog.
Enhance CommandPalette with more actions and search. Improve
CompanySwitcher, EmptyState, and IssueProperties. Flesh out Activity,
Companies, Dashboard, and Inbox pages with real content and layouts.
Refine sidebar, routing, and dialog context. CSS tweaks for dark theme.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/components/Sidebar.tsx

@@ -12,6 +12,7 @@ import {
   SquarePen,
   Building2,
   ListTodo,
+  LayoutList,
 } from "lucide-react";
 import { CompanySwitcher } from "./CompanySwitcher";
 import { SidebarSection } from "./SidebarSection";
@@ -29,16 +30,15 @@ export function Sidebar() {
   }
 
   return (
-    <aside className="w-60 border-r border-border bg-card flex flex-col shrink-0">
-      <div className="p-3">
-        <CompanySwitcher />
-      </div>
-
-      <div className="flex items-center gap-1 px-3 pb-2">
+    <aside className="w-60 h-full border-r border-border bg-card flex flex-col">
+      <div className="flex items-center gap-1 p-3">
+        <div className="flex-1 min-w-0">
+          <CompanySwitcher />
+        </div>
         <Button
           variant="ghost"
           size="icon-sm"
-          className="text-muted-foreground"
+          className="text-muted-foreground shrink-0"
           onClick={openSearch}
         >
           <Search className="h-4 w-4" />
@@ -46,7 +46,7 @@ export function Sidebar() {
         <Button
           variant="ghost"
           size="icon-sm"
-          className="text-muted-foreground"
+          className="text-muted-foreground shrink-0"
           onClick={() => openNewIssue()}
         >
           <SquarePen className="h-4 w-4" />
@@ -63,13 +63,13 @@ export function Sidebar() {
           </div>
 
           <SidebarSection label="Work">
-            <SidebarNavItem to="/tasks" label="Issues" icon={CircleDot} />
+            <SidebarNavItem to="/issues" label="Issues" icon={CircleDot} />
             <SidebarNavItem to="/projects" label="Projects" icon={Hexagon} />
             <SidebarNavItem to="/goals" label="Goals" icon={Target} />
           </SidebarSection>
 
           <SidebarSection label="Company">
-            <SidebarNavItem to="/" label="Dashboard" icon={LayoutDashboard} end />
+            <SidebarNavItem to="/dashboard" label="Dashboard" icon={LayoutDashboard} />
             <SidebarNavItem to="/org" label="Org Chart" icon={GitBranch} />
             <SidebarNavItem to="/agents" label="Agents" icon={Bot} />
             <SidebarNavItem to="/costs" label="Costs" icon={DollarSign} />