feat(swarm): implement swarm workspace container component

src/components/swarm/swarm-workspace.tsx

@@ -0,0 +1,47 @@
+"use client";
+
+import React, { useState } from 'react';
+
+export function SwarmWorkspace({ selectedMissionId }: { selectedMissionId?: string }) {
+    const [activeTab, setActiveTab] = useState<'operations' | 'archetypes' | 'templates'>('operations');
+
+    const renderTabContent = () => {
+        switch (activeTab) {
+            case 'operations':
+                return selectedMissionId
+                    ? <div>Ops Details for {selectedMissionId}</div>
+                    : <div className="p-8 text-center text-muted-foreground">Select a mission from the left panel.</div>;
+            case 'archetypes':
+                return <div>Archetypes UI</div>;
+            case 'templates':
+                return <div>Templates UI</div>;
+            default:
+                return null;
+        }
+    };
+
+    return (
+        <div className="flex flex-col h-full w-full">
+            {/* Tab Navigation - Min 44px for mobile targets */}
+            <div className="flex border-b min-h-[44px]">
+                {['operations', 'archetypes', 'templates'].map(tab => (
+                    <button
+                        key={tab}
+                        onClick={() => setActiveTab(tab as any)}
+                        className={`px-4 py-2 capitalize min-w-[80px] min-h-[44px] ${activeTab === tab
+                                ? 'border-b-2 border-primary font-bold'
+                                : 'text-muted-foreground hover:bg-accent/50'
+                            } focus:outline-none focus:ring-2`}
+                    >
+                        {tab}
+                    </button>
+                ))}
+            </div>
+
+            {/* Content Area */}
+            <div className="flex-1 overflow-auto p-4 content-visibility-auto">
+                {renderTabContent()}
+            </div>
+        </div>
+    );
+}

tests/components/swarm/swarm-workspace.test.tsx

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+import { expect, test, describe } from 'bun:test';
+
+describe('SwarmWorkspace Component', () => {
+    test('exports SwarmWorkspace component that is a function', async () => {
+        // This will fail because the file doesn't exist yet
+        const mod = await import('../../../src/components/swarm/swarm-workspace');
+        expect(mod.SwarmWorkspace).toBeDefined();
+        expect(typeof mod.SwarmWorkspace).toBe('function');
+    });
+});