Add AI travel day summaries via OpenRouter for skippers.

Skipper-only proxy with per-entry rate limiting, encrypted payload storage, CSV export, and Plausible tracking.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/utils/entryCanonicalHash.test.ts

@@ -0,0 +1,25 @@
+import { describe, it, expect } from 'vitest'
+import { hashEntryForSigning } from './entryCanonicalHash.js'
+
+describe('hashEntryForSigning', () => {
+  it('excludes aiSummary fields from the signing hash', async () => {
+    const base = {
+      date: '2026-06-03',
+      dayOfTravel: '1',
+      departure: 'A',
+      destination: 'B',
+      freshwater: { morning: 0, refilled: 0, evening: 0, consumption: 0 },
+      fuel: { morning: 0, refilled: 0, evening: 0, consumption: 0 },
+      events: []
+    }
+
+    const withoutSummary = await hashEntryForSigning(base)
+    const withSummary = await hashEntryForSigning({
+      ...base,
+      aiSummary: 'A calm day at sea.',
+      aiSummaryGeneratedAt: '2026-06-03T12:00:00.000Z'
+    })
+
+    expect(withSummary).toBe(withoutSummary)
+  })
+})

client/src/utils/entryCanonicalHash.ts

@@ -1,4 +1,5 @@
 const SIGNATURE_KEYS = new Set(['signSkipper', 'signCrew'])
+const AI_SUMMARY_KEYS = new Set(['aiSummary', 'aiSummaryGeneratedAt'])
 
 function sortEventsByTime(items: unknown[]): unknown[] {
   return [...items]
@@ -25,7 +26,7 @@ function sortValue(value: unknown, parentKey?: string): unknown {
   const obj = value as Record<string, unknown>
   const sorted: Record<string, unknown> = {}
   for (const key of Object.keys(obj).sort()) {
-    if (SIGNATURE_KEYS.has(key)) continue
+    if (SIGNATURE_KEYS.has(key) || AI_SUMMARY_KEYS.has(key)) continue
     sorted[key] = sortValue(obj[key], key)
   }
   return sorted