feat: rename keep-notes to memento-note, migrate to PostgreSQL, fix MCP bugs

- Rename directory keep-notes -> memento-note with all code references
- Prisma: SQLite -> PostgreSQL (both app and MCP server schemas)
- Sync MCP schema with main app (add missing fields, relations, indexes)
- Delete 17 SQLite migrations (clean slate for PostgreSQL)
- Remove SQLite dependencies (@libsql/client, better-sqlite3, etc.)
- Fix MCP server: hardcoded Windows DB paths -> DATABASE_URL env var
- Fix MCP server: .dockerignore excluded index-sse.js (SSE mode broken)
- MCP Dockerfile: node:20 -> node:22
- Docker Compose: add postgres service, remove SQLite volume
- Generate favicon.ico, icon-192.png, icon-512.png, apple-icon.png
- Update layout.tsx icons and manifest.json for PNG icons
- Update all .env files for PostgreSQL
- Rewrite README.md with updated sections
- Remove mcp-server/node_modules and prisma/client-generated from git tracking

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

memento-note/app/(main)/support/page.tsx

@@ -0,0 +1,156 @@
+'use client'
+
+import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
+import { Button } from '@/components/ui/button';
+import { useLanguage } from '@/lib/i18n';
+
+export default function SupportPage() {
+  const { t } = useLanguage();
+
+  return (
+    <div className="container mx-auto py-10 max-w-4xl">
+      <div className="text-center mb-10">
+        <h1 className="text-4xl font-bold mb-4">
+          {t('support.title')}
+        </h1>
+        <p className="text-muted-foreground text-lg">
+          {t('support.description')}
+        </p>
+      </div>
+
+      <div className="grid gap-6 md:grid-cols-2 mb-10">
+        <Card className="border-2 border-primary">
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2">
+              <span className="text-2xl">☕</span>
+              {t('support.buyMeACoffee')}
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <p className="mb-4">
+              {t('support.donationDescription')}
+            </p>
+            <Button asChild className="w-full">
+              <a href="https://ko-fi.com/yourusername" target="_blank" rel="noopener noreferrer">
+                {t('support.donateOnKofi')}
+              </a>
+            </Button>
+            <p className="text-xs text-muted-foreground mt-2">
+              {t('support.kofiDescription')}
+            </p>
+          </CardContent>
+        </Card>
+
+        <Card className="border-2 border-primary">
+          <CardHeader>
+            <CardTitle className="flex items-center gap-2">
+              <span className="text-2xl">💚</span>
+              {t('support.sponsorOnGithub')}
+            </CardTitle>
+          </CardHeader>
+          <CardContent>
+            <p className="mb-4">
+              {t('support.sponsorDescription')}
+            </p>
+            <Button asChild variant="outline" className="w-full">
+              <a href="https://github.com/sponsors/yourusername" target="_blank" rel="noopener noreferrer">
+                {t('support.sponsorOnGithub')}
+              </a>
+            </Button>
+            <p className="text-xs text-muted-foreground mt-2">
+              {t('support.githubDescription')}
+            </p>
+          </CardContent>
+        </Card>
+      </div>
+
+      <Card className="mb-10">
+        <CardHeader>
+          <CardTitle>{t('support.howSupportHelps')}</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <div className="grid md:grid-cols-2 gap-4">
+            <div>
+              <h3 className="font-semibold mb-2">💰 {t('support.directImpact')}</h3>
+              <ul className="space-y-2 text-sm">
+                <li>☕ Keeps me fueled with coffee</li>
+                <li>🐛 Covers hosting and server costs</li>
+                <li>✨ Funds development of new features</li>
+                <li>📚 Improves documentation</li>
+                <li>🌍 Keeps Memento 100% open-source</li>
+              </ul>
+            </div>
+            <div>
+              <h3 className="font-semibold mb-2">🎁 {t('support.sponsorPerks')}</h3>
+              <ul className="space-y-2 text-sm">
+                <li>🥉 $5/month - Bronze: Name in supporters list</li>
+                <li>🥈 $15/month - Silver: Priority feature requests</li>
+                <li>🥇 $50/month - Gold: Logo in footer, priority support</li>
+                <li>💎 $100/month - Platinum: Custom features, consulting</li>
+              </ul>
+            </div>
+          </div>
+        </CardContent>
+      </Card>
+
+      <Card>
+        <CardHeader>
+          <CardTitle>💡 {t('support.transparency')}</CardTitle>
+        </CardHeader>
+        <CardContent>
+          <p className="text-sm mb-4">
+            {t('support.transparencyDescription')}
+          </p>
+          <div className="space-y-2 text-sm">
+            <div className="flex justify-between">
+              <span>{t('support.hostingServers')}</span>
+              <span className="font-mono">~$20/month</span>
+            </div>
+            <div className="flex justify-between">
+              <span>{t('support.domainSSL')}</span>
+              <span className="font-mono">~$15/year</span>
+            </div>
+            <div className="flex justify-between">
+              <span>{t('support.aiApiCosts')}</span>
+              <span className="font-mono">~$30/month</span>
+            </div>
+            <div className="flex justify-between border-t pt-2">
+              <span className="font-semibold">{t('support.totalExpenses')}</span>
+              <span className="font-mono font-semibold">~$50/month</span>
+            </div>
+          </div>
+          <p className="text-xs text-muted-foreground mt-4">
+            Any amount beyond these costs goes directly into improving Memento
+            and funding new features. Thank you for your support! 💚
+          </p>
+        </CardContent>
+      </Card>
+
+      <div className="mt-10 text-center">
+        <h2 className="text-2xl font-bold mb-4">{t('support.otherWaysTitle')}</h2>
+        <div className="flex flex-wrap justify-center gap-4">
+          <Button variant="outline" asChild>
+            <a href="https://github.com/yourusername/memento" target="_blank" rel="noopener noreferrer">
+              ⭐ {t('support.starGithub')}
+            </a>
+          </Button>
+          <Button variant="outline" asChild>
+            <a href="https://github.com/yourusername/memento/issues" target="_blank" rel="noopener noreferrer">
+              🐛 {t('support.reportBug')}
+            </a>
+          </Button>
+          <Button variant="outline" asChild>
+            <a href="https://github.com/yourusername/memento" target="_blank" rel="noopener noreferrer">
+              📝 {t('support.contributeCode')}
+            </a>
+          </Button>
+          <Button variant="outline" asChild>
+            <a href="https://twitter.com/intent/tweet?text=Check%20out%20Memento%20-%20a%20great%20open-source%20note-taking%20app!%20https://github.com/yourusername/memento" target="_blank" rel="noopener noreferrer">
+              🐦 {t('support.shareTwitter')}
+            </a>
+          </Button>
+        </div>
+      </div>
+    </div>
+  );
+}