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/scripts/debug-config.ts

@@ -0,0 +1,41 @@
+import prisma from '../lib/prisma'
+
+async function debugConfig() {
+  console.log('=== System Configuration Debug ===\n')
+
+  const configs = await prisma.systemConfig.findMany()
+
+  console.log(`Total configs in DB: ${configs.length}\n`)
+
+  // Group by category
+  const aiConfigs = configs.filter(c => c.key.startsWith('AI_'))
+  const ollamaConfigs = configs.filter(c => c.key.includes('OLLAMA'))
+  const openaiConfigs = configs.filter(c => c.key.includes('OPENAI'))
+
+  console.log('=== AI Provider Configs ===')
+  aiConfigs.forEach(c => {
+    console.log(`${c.key}: "${c.value}"`)
+  })
+
+  console.log('\n=== Ollama Configs ===')
+  ollamaConfigs.forEach(c => {
+    console.log(`${c.key}: "${c.value}"`)
+  })
+
+  console.log('\n=== OpenAI Configs ===')
+  openaiConfigs.forEach(c => {
+    console.log(`${c.key}: "${c.value}"`)
+  })
+
+  console.log('\n=== All Configs ===')
+  configs.forEach(c => {
+    console.log(`${c.key}: "${c.value}"`)
+  })
+}
+
+debugConfig()
+  .then(() => process.exit(0))
+  .catch((err) => {
+    console.error(err)
+    process.exit(1)
+  })