feat: HowItWorks - real curl examples with copy button + actual API endpoints (#26)

- feat: HowItWorks - real curl examples with copy button + actual API endpoints (a6501a5533595c0362defe51422e404839ce5ad3)

landing/src/components/HowItWorks.tsx

@@ -1,53 +1,128 @@
+import { useState } from 'react'
 import './HowItWorks.css'
 
+const API_URL = import.meta.env.VITE_API_URL || 'https://fairrelay-backend.onrender.com'
+
 const steps = [
   {
     step: '01',
     title: 'Geographic Clustering Agent',
     desc: 'scikit-learn KMeans clusters shipments by pickup/drop proximity (4D feature vectors). Silhouette-score selects optimal K. Groups nearby shipments heading the same direction.',
-    code: 'Agent 1: GeoClusteringAgent\n→ KMeans + Silhouette Score\n→ 15 shipments → 4 clusters',
+    code: `curl -X POST ${API_URL}/api/v1/consolidate/optimize \\
+  -H "Content-Type: application/json" \\
+  -d '{
+    "shipments": [
+      {"id": "SH-1", "pickupLat": 19.076, "pickupLng": 72.877,
+       "dropLat": 18.520, "dropLng": 73.856, "weight": 800}
+    ],
+    "trucks": [{"id": "T-1", "maxWeight": 2000, "maxVolume": 8}]
+  }'`,
     color: '#f97316',
+    endpoint: 'POST /api/v1/consolidate/optimize',
   },
   {
     step: '02',
     title: 'Time Window Compatibility Agent',
     desc: 'Filters clusters by delivery time window overlap. Splits groups where shipments have incompatible schedules. Configurable tolerance (default: 120 min).',
-    code: 'Agent 2: TimeWindowAgent\n→ Temporal overlap filter\n→ 4 clusters → 5 time-valid groups',
+    code: `# Time windows are part of the shipment payload:
+{
+  "shipments": [{
+    "id": "SH-1",
+    "timeWindowStart": "2026-02-20T06:00:00Z",
+    "timeWindowEnd": "2026-02-20T12:00:00Z",
+    ...
+  }]
+}
+# Agent auto-splits groups with >120min gap`,
     color: '#3b82f6',
+    endpoint: 'Integrated in consolidate pipeline',
   },
   {
     step: '03',
     title: 'Capacity Optimization Agent',
     desc: 'OR-Tools CP-SAT integer programming solver assigns shipments to trucks. Minimizes vehicles used while respecting weight + volume constraints. FFD heuristic fallback.',
-    code: 'Agent 3: CapacityOptimizationAgent\n→ OR-Tools CP-SAT solver (3s limit)\n→ 5 groups → 3 packed trucks',
+    code: `# Response includes packed truck assignments:
+{
+  "groups": [{
+    "groupId": 1,
+    "truckId": "T-1",
+    "shipmentCount": 3,
+    "totalWeight": 1850,
+    "utilizationWeight": 92.5
+  }],
+  "metrics": {
+    "utilizationBefore": 27.3,
+    "utilizationAfter": 82.1,
+    "tripsReduced": 4
+  }
+}`,
     color: '#10b981',
+    endpoint: 'Response from /consolidate/optimize',
   },
   {
     step: '04',
-    title: 'Scoring & Confidence Agent',
-    desc: 'Computes per-group AI confidence (capacity fit × geo proximity × time alignment). Calculates global metrics: utilization%, trips reduced, CO₂ saved, cost saved.',
-    code: 'Agent 4: ScoringConfidenceAgent\n→ Confidence: 78-95%\n→ Utilization: 27% → 82%',
+    title: 'Fair Dispatch Engine (8 Agents)',
+    desc: 'LangGraph multi-agent workflow: ML Effort → Route Planner (OR-Tools) → Fairness Manager (Gini ≤ 0.33) → Driver Liaison → Final Resolution → Explainability.',
+    code: `curl -X POST ${API_URL}/api/dispatch/allocate \\
+  -H "Content-Type: application/json" \\
+  -d '{
+    "drivers": [
+      {"id": "D-1", "name": "Rajesh", "vehicle_capacity_kg": 500}
+    ],
+    "packages": [
+      {"id": "P-1", "weight_kg": 12, "latitude": 19.13,
+       "longitude": 72.82, "priority": "HIGH"}
+    ],
+    "warehouse": {"lat": 19.076, "lng": 72.877}
+  }'`,
     color: '#f59e0b',
+    endpoint: 'POST /api/dispatch/allocate',
   },
   {
     step: '05',
     title: 'Continuous Learning Agent',
-    desc: 'Q-learning RL agent records (state, action, reward) per run. Builds Q-table over time to recommend optimal (radius, tolerance) parameters. Self-improves with every execution.',
-    code: 'Agent 5: RL Q-Learning\n→ Episodes: 47 | Reward: 73.2/100\n→ Optimal: radius=30km, tol=120min',
+    desc: 'Q-learning RL agent records (state, action, reward) per run. Builds Q-table over time to recommend optimal parameters. Self-improves with every execution.',
+    code: `# Health check — verify all agents are active:
+curl ${API_URL}/api/dispatch/health
+
+# Response:
+{
+  "brain_status": "connected",
+  "brain_health": {"status": "healthy", "database": "connected"},
+  "gateway": "operational"
+}`,
     color: '#ec4899',
+    endpoint: 'GET /api/dispatch/health',
   },
 ]
 
+function CopyButton({ text }: { text: string }) {
+  const [copied, setCopied] = useState(false)
+  
+  const handleCopy = () => {
+    navigator.clipboard.writeText(text).then(() => {
+      setCopied(true)
+      setTimeout(() => setCopied(false), 2000)
+    })
+  }
+
+  return (
+    <button onClick={handleCopy} className="hiw__copy-btn" title="Copy to clipboard">
+      {copied ? '✓ Copied' : '📋 Copy'}
+    </button>
+  )
+}
+
 export default function HowItWorks() {
   return (
     <section className="hiw" id="how-it-works">
       <div className="container">
         <div className="section-header">
-          <div className="tag">5-Agent Pipeline</div>
-          <h2 className="section-title">How the AI Consolidation Engine works</h2>
+          <div className="tag">Multi-Agent Pipeline</div>
+          <h2 className="section-title">How FairRelay's AI Engine works</h2>
           <p className="section-sub">
-            5 specialized AI agents orchestrated by LangGraph — each handles one aspect of the
-            consolidation problem, collaborating to maximize vehicle utilization.
+            13 specialized AI agents orchestrated by LangGraph — 8 for fair dispatch + 5 for load consolidation.
+            Every endpoint is live. Try the curl commands below.
           </p>
         </div>
 
@@ -67,7 +142,11 @@ export default function HowItWorks() {
               <div className="hiw__step-content">
                 <h3 className="hiw__step-title">{s.title}</h3>
                 <p className="hiw__step-desc">{s.desc}</p>
+                <div className="hiw__step-endpoint" style={{ color: s.color }}>
+                  <code>{s.endpoint}</code>
+                </div>
                 <div className="hiw__step-code">
+                  <CopyButton text={s.code} />
                   <pre><code>{s.code}</code></pre>
                 </div>
               </div>
@@ -75,6 +154,14 @@ export default function HowItWorks() {
           ))}
         </div>
       </div>
+
+      <style>{`
+        .hiw__copy-btn { position: absolute; top: 8px; right: 8px; background: rgba(249,115,22,0.15); border: 1px solid rgba(249,115,22,0.3); color: #f97316; font-size: 0.7rem; padding: 4px 10px; border-radius: 6px; cursor: pointer; font-weight: 600; z-index: 2; transition: all 0.2s; }
+        .hiw__copy-btn:hover { background: rgba(249,115,22,0.25); }
+        .hiw__step-code { position: relative; }
+        .hiw__step-endpoint { font-size: 0.7rem; font-family: 'JetBrains Mono', monospace; margin-bottom: 0.5rem; opacity: 0.8; }
+        .hiw__step-endpoint code { background: rgba(255,255,255,0.03); padding: 2px 8px; border-radius: 4px; border: 1px solid rgba(255,255,255,0.06); }
+      `}</style>
     </section>
   )
 }