chore: checkpoint related UI improvements and supporting components

Various supporting changes made during the assign archetypes feature development:

- Added contextual-right-panel.tsx and swarm-command-feed.tsx
- Updated activity-panel.tsx with new features
- UI improvements to left-panel, mobile-nav
- Test updates for url-state-integration, mobile-nav, top-bar
- Package.json updates for dependencies
- Global CSS refinements

These changes support the main assign archetypes feature but are
not directly part of its core functionality.

tests/components/shared/mobile-nav.test.tsx

@@ -11,7 +11,7 @@ describe('Mobile Navigation - Hamburger Menu', () => {
     }
   });
 
-  it('renders three tab buttons: Social, Graph, Swarm', async () => {
+  it('renders tab buttons: Social, Graph', async () => {
     try {
       const mod = await import('../../../src/components/shared/mobile-nav');
       assert.ok(mod.MobileNav, 'MobileNav should exist');

tests/components/shared/top-bar.test.tsx

@@ -23,7 +23,7 @@ describe('TopBar Component Contract', () => {
 });
 
 describe('TopBar View Tabs', () => {
-  it('renders three view tabs: Social, Graph, Swarm', async () => {
+  it('renders view tabs: Social, Graph', async () => {
     try {
       const mod = await import('../../../src/components/shared/top-bar');
       assert.ok(mod.TopBar, 'TopBar should exist');