feat: 8 AI providers, rich text editor, agent notifications, UI contrast & font settings

- Add DeepSeek, OpenRouter, Mistral, Z.AI, LM Studio as AI providers
  with editable model names via Combobox in admin settings
- Fix OpenRouter broken by normalizeProvider bug in config.ts
- Convert agent-created notes from Markdown to HTML (TipTap rich text)
- Add Notification model + in-app notifications for agent results
- Agent notification click opens the created note directly
- Add note count display on notebook and inbox headers
- Fix checklist toggle in card view (persist state via localCheckItems)
- Add checklist creation option in tabs/list view (dropdown on + button)
- Fix image description ENOENT error with HTTP fallback
- Improve UI contrast across all themes (input, border, checkbox visibility)
- Add font family setting (Inter vs System Default) in Appearance settings
- Fix CSS font-sans variable conflict (removed dead Geist references)
- Update README with new features and 8 providers

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

memento-note/docker-entrypoint.sh

@@ -1,8 +1,11 @@
 #!/bin/sh
 # ============================================================
 # Memento Note — Docker Entrypoint
-# Automatic DB migration with backup, retry, and cleanup.
-# Safe for production: no data loss on image updates.
+# Reliable DB migration for fresh installs and upgrades.
+# ============================================================
+# Strategy:
+#   1. prisma migrate deploy  → fresh DB, normal upgrades
+#   2. prisma db push         → fallback for DBs without migration history
 # ============================================================
 
 set -e
@@ -26,13 +29,12 @@ case "$DATABASE_URL" in
 esac
 log "Database type: $DB_TYPE"
 
-# --- Wait for database to be reachable ---
-wait_for_db() {
-  if [ "$DB_TYPE" = "sqlite" ]; then
-    log "SQLite — no connection check needed."
-    return 0
-  fi
+# --- Ensure data directories exist ---
+mkdir -p "$BACKUP_DIR" 2>/dev/null || true
+mkdir -p /app/data/uploads/notes 2>/dev/null || true
 
+# --- Wait for database to be reachable ---
+if [ "$DB_TYPE" != "sqlite" ]; then
   log "Waiting for database connection..."
   i=0
   while [ "$i" -lt "$DB_WAIT_RETRIES" ]; do
@@ -45,107 +47,74 @@ wait_for_db() {
       s.on('error', () => process.exit(1));
     " 2>/dev/null; then
       log "Database is reachable."
-      return 0
+      break
     fi
     i=$((i + 1))
     log "  Attempt $i/$DB_WAIT_RETRIES — retrying in ${DB_WAIT_INTERVAL}s..."
     sleep "$DB_WAIT_INTERVAL"
   done
 
-  err "Database unreachable after $((DB_WAIT_RETRIES * DB_WAIT_INTERVAL)) seconds. Aborting."
-  exit 1
-}
-
-# --- Create backup before migration ---
-create_backup() {
-  mkdir -p "$BACKUP_DIR"
-  ts=$(date '+%Y%m%d_%H%M%S')
-
-  case "$DB_TYPE" in
-    postgres)
-      backup_file="$BACKUP_DIR/pre_migrate_${ts}.sql.gz"
-      log "Creating PostgreSQL backup: $backup_file"
-      if command -v pg_dump >/dev/null 2>&1; then
-        if pg_dump --no-owner --no-privileges --format=plain "$DATABASE_URL" 2>/dev/null | gzip > "$backup_file" 2>/dev/null; then
-          size=$(du -h "$backup_file" | cut -f1)
-          log "Backup created successfully ($size)"
-        else
-          warn "pg_dump failed. Continuing without backup."
-          rm -f "$backup_file"
-        fi
-      else
-        warn "pg_dump not available. Skipping PostgreSQL backup."
-        warn "Install postgresql-client in the Docker image for automatic backups."
-      fi
-      ;;
-    sqlite)
-      db_path="${DATABASE_URL#file:}"
-      # Handle relative paths
-      case "$db_path" in
-        /*) ;;
-        *)  db_path="/app/$db_path" ;;
-      esac
-      backup_file="$BACKUP_DIR/pre_migrate_${ts}.sqlite"
-      if [ -f "$db_path" ]; then
-        log "Creating SQLite backup: $backup_file"
-        cp "$db_path" "$backup_file"
-        size=$(du -h "$backup_file" | cut -f1)
-        log "Backup created successfully ($size)"
-      else
-        warn "SQLite file not found at $db_path — skipping backup (first run)."
-      fi
-      ;;
-    *)
-      warn "Unknown database type '$DB_TYPE'. Skipping backup."
-      ;;
-  esac
-}
-
-# --- Clean up old backups (keep last N) ---
-cleanup_old_backups() {
-  count=$(ls -1 "$BACKUP_DIR"/pre_migrate_* 2>/dev/null | wc -l)
-  if [ "$count" -gt "$MAX_BACKUPS" ]; then
-    to_remove=$((count - MAX_BACKUPS))
-    log "Cleaning up $to_remove old backup(s), keeping last $MAX_BACKUPS..."
-    ls -1t "$BACKUP_DIR"/pre_migrate_* 2>/dev/null | tail -n "$to_remove" | xargs rm -f
+  if [ "$i" -ge "$DB_WAIT_RETRIES" ]; then
+    err "Database unreachable after $((DB_WAIT_RETRIES * DB_WAIT_INTERVAL)) seconds."
+    exit 1
   fi
-}
-
-# --- Run Prisma migrations ---
-run_migrations() {
-  log "Running Prisma migrations..."
-  if timeout "$MIGRATE_TIMEOUT" node ./node_modules/prisma/build/index.js migrate deploy 2>&1; then
-    log "Migrations applied successfully."
-    return 0
-  else
-    exit_code=$?
-    err "Migration failed (exit code $exit_code)."
-    return "$exit_code"
-  fi
-}
-
-# ============================================================
-# Main flow
-# ============================================================
-
-# Step 1: Wait for database
-wait_for_db
-
-# Step 2: Backup
-create_backup
-
-# Step 3: Cleanup old backups
-cleanup_old_backups
-
-# Step 4: Migrate
-if ! run_migrations; then
-  err "Migration failed — server will NOT start to prevent data corruption."
-  err "A backup was saved in $BACKUP_DIR (if backup was successful)."
-  err "To restore: gunzip the .sql.gz file, then: psql DATABASE_URL < backup.sql"
-  exit 1
 fi
 
-# Background scheduler: call /api/cron/agents every 5 minutes
+# --- Create backup before migration (best-effort) ---
+if [ "$DB_TYPE" = "postgres" ] && command -v pg_dump >/dev/null 2>&1; then
+  ts=$(date '+%Y%m%d_%H%M%S')
+  backup_file="$BACKUP_DIR/pre_migrate_${ts}.sql.gz"
+  log "Creating backup: $backup_file"
+  if pg_dump --no-owner --no-privileges --format=plain "$DATABASE_URL" 2>/dev/null | gzip > "$backup_file" 2>/dev/null; then
+    size=$(du -h "$backup_file" | cut -f1)
+    log "Backup OK ($size)"
+  else
+    warn "pg_dump failed (DB may be empty). Continuing without backup."
+    rm -f "$backup_file"
+  fi
+fi
+
+# --- Cleanup old backups ---
+count=$(ls -1 "$BACKUP_DIR"/pre_migrate_* 2>/dev/null | wc -l)
+if [ "$count" -gt "$MAX_BACKUPS" ]; then
+  to_remove=$((count - MAX_BACKUPS))
+  log "Cleaning up $to_remove old backup(s)..."
+  ls -1t "$BACKUP_DIR"/pre_migrate_* 2>/dev/null | tail -n "$to_remove" | xargs rm -f
+fi
+
+# ============================================================
+# Migration — two strategies
+# ============================================================
+
+PRISMA="node ./node_modules/prisma/build/index.js"
+
+log "Running database migrations..."
+
+# Strategy 1: prisma migrate deploy
+# Works for: fresh DB (empty), existing DB with migration history
+if timeout "$MIGRATE_TIMEOUT" $PRISMA migrate deploy 2>&1; then
+  log "Migrations applied successfully."
+else
+  migrate_exit=$?
+  log "prisma migrate deploy failed (exit $migrate_exit)."
+
+  # Strategy 2: prisma db push
+  # Works for: existing DB without migration history (created with db push),
+  # schema drift, or any other case where migrate deploy fails.
+  # This syncs schema.prisma → database, preserving existing data.
+  log "Falling back to prisma db push..."
+  if timeout "$MIGRATE_TIMEOUT" $PRISMA db push --skip-generate --accept-data-loss 2>&1; then
+    log "db push completed successfully."
+  else
+    err "All migration strategies failed."
+    err "To fix manually:"
+    err "  docker compose exec memento-note npx prisma migrate deploy"
+    err "  docker compose exec memento-note npx prisma db push --skip-generate"
+    exit 1
+  fi
+fi
+
+# --- Background cron scheduler ---
 (
   sleep 60
   while true; do
@@ -163,6 +132,6 @@ fi
   done
 ) &
 
-# Step 5: Start server
+# --- Start server ---
 log "Starting server..."
 exec node server.js