feat: add SQLite/PostgreSQL database switching support

api/server.go

@@ -14,6 +14,9 @@ import (
 	"nofx/manager"
 	"nofx/market"
 	"nofx/provider/alpaca"
+	"nofx/provider/coinank/coinank_api"
+	"nofx/provider/coinank/coinank_enum"
+	"nofx/provider/hyperliquid"
 	"nofx/provider/twelvedata"
 	"nofx/store"
 	"nofx/trader"

go.mod

@@ -56,6 +56,7 @@ require (
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/lib/pq v1.10.9 // indirect
 	github.com/mailru/easyjson v0.9.1 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect

go.sum

@@ -133,6 +133,8 @@ github.com/leanovate/gopter v0.2.11 h1:vRjThO1EKPb/1NsDXuDrzldR28RLkBflWYcU9CvzW
 github.com/leanovate/gopter v0.2.11/go.mod h1:aK3tzZP/C+p1m3SPRE4SYZFGP7jjkuSI4f7Xvpt0S9c=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
+github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
+github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/mailru/easyjson v0.9.1 h1:LbtsOm5WAswyWbvTEOqhypdPeZzHavpZx96/n553mR8=
 github.com/mailru/easyjson v0.9.1/go.mod h1:1+xMtQp2MRNVL/V1bOzuP3aP8VNwRW55fQUto+XFtTU=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=

main.go

@@ -36,21 +36,30 @@ func main() {
 	cfg := config.Get()
 	logger.Info("✅ Configuration loaded")
 
-	// Initialize database
-	// Default path is data/data.db to work with Docker volume mount (/app/data)
-	dbPath := "data/data.db"
+	// Initialize database from environment variables
+	// DB_TYPE: sqlite (default) or postgres
+	// For SQLite: DB_PATH (default: data/data.db)
+	// For PostgreSQL: DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_NAME, DB_SSLMODE
+	dbPath := os.Getenv("DB_PATH")
+	if dbPath == "" {
+		dbPath = "data/data.db"
+	}
+	// For backward compatibility: command line arg overrides env var (SQLite only)
 	if len(os.Args) > 1 {
 		dbPath = os.Args[1]
+		os.Setenv("DB_PATH", dbPath)
 	}
-	// Ensure data directory exists
-	if dir := filepath.Dir(dbPath); dir != "." {
-		if err := os.MkdirAll(dir, 0755); err != nil {
-			logger.Errorf("Failed to create data directory: %v", err)
+	// Ensure data directory exists (for SQLite)
+	if os.Getenv("DB_TYPE") == "" || os.Getenv("DB_TYPE") == "sqlite" {
+		if dir := filepath.Dir(dbPath); dir != "." {
+			if err := os.MkdirAll(dir, 0755); err != nil {
+				logger.Errorf("Failed to create data directory: %v", err)
+			}
 		}
 	}
 
-	logger.Infof("📋 Initializing database: %s", dbPath)
-	st, err := store.New(dbPath)
+	logger.Info("📋 Initializing database...")
+	st, err := store.NewFromEnv()
 	if err != nil {
 		logger.Fatalf("❌ Failed to initialize database: %v", err)
 	}

store/driver.go

@@ -0,0 +1,240 @@
+// Package store provides database driver abstraction
+package store
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+	"strings"
+
+	_ "github.com/lib/pq"      // PostgreSQL driver
+	_ "modernc.org/sqlite"     // SQLite driver
+)
+
+// DBType represents database type
+type DBType string
+
+const (
+	DBTypeSQLite   DBType = "sqlite"
+	DBTypePostgres DBType = "postgres"
+)
+
+// DBConfig database configuration
+type DBConfig struct {
+	Type     DBType // sqlite or postgres
+	Path     string // SQLite file path (for sqlite)
+	Host     string // PostgreSQL host (for postgres)
+	Port     int    // PostgreSQL port (for postgres)
+	User     string // PostgreSQL user (for postgres)
+	Password string // PostgreSQL password (for postgres)
+	DBName   string // PostgreSQL database name (for postgres)
+	SSLMode  string // PostgreSQL SSL mode (for postgres)
+}
+
+// DBDriver database driver abstraction
+type DBDriver struct {
+	Type DBType
+	db   *sql.DB
+}
+
+// NewDBDriver creates database driver from config
+func NewDBDriver(cfg DBConfig) (*DBDriver, error) {
+	var db *sql.DB
+	var err error
+
+	switch cfg.Type {
+	case DBTypeSQLite:
+		db, err = openSQLite(cfg.Path)
+	case DBTypePostgres:
+		db, err = openPostgres(cfg)
+	default:
+		return nil, fmt.Errorf("unsupported database type: %s", cfg.Type)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	return &DBDriver{Type: cfg.Type, db: db}, nil
+}
+
+// NewDBDriverFromEnv creates database driver from environment variables
+// DB_TYPE: sqlite (default) or postgres
+// For SQLite: DB_PATH (default: data/data.db)
+// For PostgreSQL: DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_NAME, DB_SSLMODE
+func NewDBDriverFromEnv() (*DBDriver, error) {
+	dbType := DBType(strings.ToLower(getEnv("DB_TYPE", "sqlite")))
+
+	switch dbType {
+	case DBTypeSQLite:
+		path := getEnv("DB_PATH", "data/data.db")
+		return NewDBDriver(DBConfig{Type: DBTypeSQLite, Path: path})
+
+	case DBTypePostgres:
+		port := 5432
+		if p := os.Getenv("DB_PORT"); p != "" {
+			fmt.Sscanf(p, "%d", &port)
+		}
+		return NewDBDriver(DBConfig{
+			Type:     DBTypePostgres,
+			Host:     getEnv("DB_HOST", "localhost"),
+			Port:     port,
+			User:     getEnv("DB_USER", "postgres"),
+			Password: os.Getenv("DB_PASSWORD"),
+			DBName:   getEnv("DB_NAME", "nofx"),
+			SSLMode:  getEnv("DB_SSLMODE", "disable"),
+		})
+
+	default:
+		return nil, fmt.Errorf("unsupported DB_TYPE: %s (use 'sqlite' or 'postgres')", dbType)
+	}
+}
+
+// DB returns underlying database connection
+func (d *DBDriver) DB() *sql.DB {
+	return d.db
+}
+
+// Close closes database connection
+func (d *DBDriver) Close() error {
+	return d.db.Close()
+}
+
+// AutoIncrement returns auto-increment syntax for current database
+func (d *DBDriver) AutoIncrement() string {
+	switch d.Type {
+	case DBTypePostgres:
+		return "SERIAL"
+	default:
+		return "INTEGER PRIMARY KEY AUTOINCREMENT"
+	}
+}
+
+// Placeholder returns placeholder for parameterized queries
+// SQLite uses ?, PostgreSQL uses $1, $2, etc.
+func (d *DBDriver) Placeholder(index int) string {
+	switch d.Type {
+	case DBTypePostgres:
+		return fmt.Sprintf("$%d", index)
+	default:
+		return "?"
+	}
+}
+
+// ConvertPlaceholders converts ? placeholders to database-specific format
+func (d *DBDriver) ConvertPlaceholders(query string) string {
+	if d.Type != DBTypePostgres {
+		return query
+	}
+
+	// Convert ? to $1, $2, etc. for PostgreSQL
+	result := query
+	index := 1
+	for strings.Contains(result, "?") {
+		result = strings.Replace(result, "?", fmt.Sprintf("$%d", index), 1)
+		index++
+	}
+	return result
+}
+
+// TableExists checks if a table exists
+func (d *DBDriver) TableExists(tableName string) (bool, error) {
+	var exists bool
+	var query string
+
+	switch d.Type {
+	case DBTypePostgres:
+		query = `SELECT EXISTS (
+			SELECT FROM information_schema.tables
+			WHERE table_schema = 'public' AND table_name = $1
+		)`
+	default:
+		query = `SELECT EXISTS (
+			SELECT 1 FROM sqlite_master
+			WHERE type = 'table' AND name = ?
+		)`
+	}
+
+	query = d.ConvertPlaceholders(query)
+	err := d.db.QueryRow(query, tableName).Scan(&exists)
+	return exists, err
+}
+
+// UpsertSyntax returns the upsert syntax for current database
+// SQLite: INSERT ... ON CONFLICT(...) DO UPDATE SET ...
+// PostgreSQL: INSERT ... ON CONFLICT(...) DO UPDATE SET ...
+// Both use the same syntax in modern versions
+func (d *DBDriver) UpsertSyntax() string {
+	return "ON CONFLICT"
+}
+
+// openSQLite opens SQLite database
+func openSQLite(path string) (*sql.DB, error) {
+	db, err := sql.Open("sqlite", path)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open SQLite database: %w", err)
+	}
+
+	// SQLite configuration
+	db.SetMaxOpenConns(1)
+	db.SetMaxIdleConns(1)
+
+	// Enable foreign key constraints
+	if _, err := db.Exec(`PRAGMA foreign_keys = ON`); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("failed to enable foreign keys: %w", err)
+	}
+
+	// Use DELETE mode for Docker compatibility
+	if _, err := db.Exec("PRAGMA journal_mode=DELETE"); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("failed to set journal_mode: %w", err)
+	}
+
+	// Set synchronous=FULL
+	if _, err := db.Exec("PRAGMA synchronous=FULL"); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("failed to set synchronous: %w", err)
+	}
+
+	// Set busy_timeout
+	if _, err := db.Exec("PRAGMA busy_timeout = 5000"); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("failed to set busy_timeout: %w", err)
+	}
+
+	return db, nil
+}
+
+// openPostgres opens PostgreSQL database
+func openPostgres(cfg DBConfig) (*sql.DB, error) {
+	connStr := fmt.Sprintf(
+		"host=%s port=%d user=%s password=%s dbname=%s sslmode=%s",
+		cfg.Host, cfg.Port, cfg.User, cfg.Password, cfg.DBName, cfg.SSLMode,
+	)
+
+	db, err := sql.Open("postgres", connStr)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open PostgreSQL database: %w", err)
+	}
+
+	// PostgreSQL configuration
+	db.SetMaxOpenConns(25)
+	db.SetMaxIdleConns(5)
+
+	// Test connection
+	if err := db.Ping(); err != nil {
+		db.Close()
+		return nil, fmt.Errorf("failed to connect to PostgreSQL: %w", err)
+	}
+
+	return db, nil
+}
+
+// getEnv gets environment variable with default value
+func getEnv(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}

store/store.go

@@ -7,13 +7,12 @@ import (
 	"fmt"
 	"nofx/logger"
 	"sync"
-
-	_ "modernc.org/sqlite"
 )
 
 // Store unified data storage interface
 type Store struct {
-	db *sql.DB
+	db     *sql.DB
+	driver *DBDriver // Database driver for abstraction
 
 	// Sub-stores (lazy initialization)
 	user     *UserStore
@@ -34,57 +33,56 @@ type Store struct {
 	mu sync.RWMutex
 }
 
-// New creates new Store instance
+// New creates new Store instance (SQLite mode for backward compatibility)
 func New(dbPath string) (*Store, error) {
-	db, err := sql.Open("sqlite", dbPath)
+	driver, err := NewDBDriver(DBConfig{Type: DBTypeSQLite, Path: dbPath})
 	if err != nil {
 		return nil, fmt.Errorf("failed to open database: %w", err)
 	}
 
-	// SQLite configuration
-	db.SetMaxOpenConns(1)
-	db.SetMaxIdleConns(1)
-
-	// Enable foreign key constraints
-	if _, err := db.Exec(`PRAGMA foreign_keys = ON`); err != nil {
-		db.Close()
-		return nil, fmt.Errorf("failed to enable foreign keys: %w", err)
-	}
-
-	// Use DELETE mode (traditional mode) to ensure Docker bind mount compatibility
-	// Note: WAL mode causes data sync issues on macOS Docker
-	if _, err := db.Exec("PRAGMA journal_mode=DELETE"); err != nil {
-		db.Close()
-		return nil, fmt.Errorf("failed to set journal_mode: %w", err)
-	}
-
-	// Set synchronous=FULL
-	if _, err := db.Exec("PRAGMA synchronous=FULL"); err != nil {
-		db.Close()
-		return nil, fmt.Errorf("failed to set synchronous: %w", err)
-	}
-
-	// Set busy_timeout
-	if _, err := db.Exec("PRAGMA busy_timeout = 5000"); err != nil {
-		db.Close()
-		return nil, fmt.Errorf("failed to set busy_timeout: %w", err)
-	}
-
-	s := &Store{db: db}
+	s := &Store{db: driver.DB(), driver: driver}
 
 	// Initialize all table structures
 	if err := s.initTables(); err != nil {
-		db.Close()
+		driver.Close()
 		return nil, fmt.Errorf("failed to initialize table structure: %w", err)
 	}
 
 	// Initialize default data
 	if err := s.initDefaultData(); err != nil {
-		db.Close()
+		driver.Close()
 		return nil, fmt.Errorf("failed to initialize default data: %w", err)
 	}
 
-	logger.Info("✅ Database enabled DELETE mode and FULL sync")
+	logger.Infof("✅ Database initialized (type: %s)", driver.Type)
+	return s, nil
+}
+
+// NewFromEnv creates new Store instance from environment variables
+// DB_TYPE: sqlite (default) or postgres
+// For SQLite: DB_PATH (default: data/data.db)
+// For PostgreSQL: DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_NAME, DB_SSLMODE
+func NewFromEnv() (*Store, error) {
+	driver, err := NewDBDriverFromEnv()
+	if err != nil {
+		return nil, fmt.Errorf("failed to open database: %w", err)
+	}
+
+	s := &Store{db: driver.DB(), driver: driver}
+
+	// Initialize all table structures
+	if err := s.initTables(); err != nil {
+		driver.Close()
+		return nil, fmt.Errorf("failed to initialize table structure: %w", err)
+	}
+
+	// Initialize default data
+	if err := s.initDefaultData(); err != nil {
+		driver.Close()
+		return nil, fmt.Errorf("failed to initialize default data: %w", err)
+	}
+
+	logger.Infof("✅ Database initialized (type: %s)", driver.Type)
 	return s, nil
 }
 
@@ -293,9 +291,25 @@ func (s *Store) Order() *OrderStore {
 
 // Close closes database connection
 func (s *Store) Close() error {
+	if s.driver != nil {
+		return s.driver.Close()
+	}
 	return s.db.Close()
 }
 
+// Driver returns database driver for abstraction
+func (s *Store) Driver() *DBDriver {
+	return s.driver
+}
+
+// DBType returns current database type
+func (s *Store) DBType() DBType {
+	if s.driver != nil {
+		return s.driver.Type
+	}
+	return DBTypeSQLite
+}
+
 // DB gets underlying database connection (for legacy code compatibility, gradually deprecated)
 // Deprecated: use Store methods instead
 func (s *Store) DB() *sql.DB {

web/src/components/landing/core/AgentGrid.tsx

@@ -54,10 +54,10 @@ export default function AgentGrid() {
                 <div className="flex flex-col md:flex-row justify-between items-end mb-16 gap-6">
                     <div>
                         <div className="flex items-center gap-2 text-nofx-gold font-mono text-xs mb-2 tracking-widest uppercase">
-                            <Crosshair className="w-4 h-4" /> Operator Select
+                            <Crosshair className="w-4 h-4" /> MARKET SELECT
                         </div>
                         <h2 className="text-4xl md:text-5xl font-black text-white uppercase tracking-tighter">
-                            Available <span className="text-transparent bg-clip-text bg-gradient-to-r from-nofx-gold to-white">Units</span>
+                            STRATEGY <span className="text-transparent bg-clip-text bg-gradient-to-r from-nofx-gold to-white">UNITS</span>
                         </h2>
                     </div>
                     <div className="font-mono text-right text-xs text-zinc-500 max-w-xs">

web/src/components/landing/core/DeploymentHub.tsx

@@ -0,0 +1,121 @@
+import { useState } from 'react'
+import { motion, AnimatePresence } from 'framer-motion'
+import { Terminal, Copy, Check, ChevronRight, Server, Command, Shield } from 'lucide-react'
+
+export default function DeploymentHub() {
+    const [copied, setCopied] = useState(false)
+    const installCmd = "curl -fsSL https://raw.githubusercontent.com/NoFxAiOS/nofx/main/install.sh | bash"
+
+    const handleCopy = () => {
+        navigator.clipboard.writeText(installCmd)
+        setCopied(true)
+        setTimeout(() => setCopied(false), 2000)
+    }
+
+    return (
+        <section className="py-24 bg-black relative overflow-hidden border-t border-zinc-800">
+            {/* Background Grids */}
+            <div className="absolute inset-0 bg-[linear-gradient(to_right,#80808012_1px,transparent_1px),linear-gradient(to_bottom,#80808012_1px,transparent_1px)] bg-[size:24px_24px]"></div>
+
+            <div className="max-w-7xl mx-auto px-6 relative z-10">
+                <div className="grid grid-cols-1 lg:grid-cols-2 gap-16 items-center">
+
+                    {/* Left Column: Context */}
+                    <div className="space-y-8">
+                        <div className="flex items-center gap-2 text-nofx-gold font-mono text-xs tracking-[0.2em] uppercase">
+                            <Server className="w-4 h-4" /> System Deployment
+                        </div>
+
+                        <h2 className="text-4xl md:text-6xl font-black text-white leading-tight">
+                            DEPLOY <span className="text-transparent bg-clip-text bg-gradient-to-r from-nofx-gold to-white">INSTANTLY</span>
+                        </h2>
+
+                        <p className="text-zinc-400 text-lg leading-relaxed font-light">
+                            Initialize your own high-frequency trading node in seconds.
+                            Our optimized installer handles all dependencies, bringing your autonomous agent online with a single command.
+                        </p>
+
+                        <div className="grid grid-cols-1 sm:grid-cols-2 gap-4 pt-4">
+                            {[
+                                { icon: Command, label: "One-Line Install", desc: "No configuration needed" },
+                                { icon: Shield, label: "Secure Core", desc: "Sandboxed execution env" }
+                            ].map((item, i) => (
+                                <div key={i} className="flex gap-4 items-start p-4 rounded bg-zinc-900/50 border border-zinc-800 hover:border-nofx-gold/30 transition-colors group">
+                                    <div className="p-2 rounded bg-black border border-zinc-800 text-nofx-gold group-hover:bg-nofx-gold/10 transition-colors">
+                                        <item.icon className="w-5 h-5" />
+                                    </div>
+                                    <div>
+                                        <h4 className="text-white font-bold font-mono text-sm mb-1">{item.label}</h4>
+                                        <p className="text-zinc-500 text-xs">{item.desc}</p>
+                                    </div>
+                                </div>
+                            ))}
+                        </div>
+                    </div>
+
+                    {/* Right Column: Terminal */}
+                    <motion.div
+                        initial={{ opacity: 0, x: 50 }}
+                        whileInView={{ opacity: 1, x: 0 }}
+                        viewport={{ once: true }}
+                        className="relative"
+                    >
+                        {/* Glow effect */}
+                        <div className="absolute -inset-1 bg-gradient-to-r from-nofx-gold/20 to-blue-500/20 rounded-xl blur-xl opacity-50"></div>
+
+                        <div className="relative rounded-xl overflow-hidden bg-[#0a0a0a] border border-zinc-800 shadow-2xl">
+                            {/* Terminal Header */}
+                            <div className="flex items-center justify-between px-4 py-3 bg-zinc-900/80 border-b border-zinc-800">
+                                <div className="flex gap-2">
+                                    <div className="w-3 h-3 rounded-full bg-red-500/80"></div>
+                                    <div className="w-3 h-3 rounded-full bg-yellow-500/80"></div>
+                                    <div className="w-3 h-3 rounded-full bg-green-500/80"></div>
+                                </div>
+                                <div className="text-[10px] font-mono text-zinc-500 flex items-center gap-1.5">
+                                    <Terminal className="w-3 h-3" />
+                                    root@nofx-os:~
+                                </div>
+                            </div>
+
+                            {/* Terminal Content */}
+                            <div className="p-8 font-mono text-sm md:text-base bg-black/50 backdrop-blur-sm min-h-[200px] flex flex-col justify-center">
+                                <div className="mb-2 text-zinc-500 text-xs tracking-wide"># Initialize NoFX Core Protocol</div>
+                                <div
+                                    className="group relative flex items-start gap-3 p-4 rounded-lg bg-zinc-900/50 border border-zinc-800 hover:border-nofx-gold/50 cursor-pointer transition-all hover:bg-zinc-900/80"
+                                    onClick={handleCopy}
+                                >
+                                    <span className="text-nofx-gold mt-1"><ChevronRight className="w-4 h-4" /></span>
+                                    <code className="text-zinc-100 flex-1 break-all">
+                                        {installCmd}
+                                    </code>
+
+                                    <div className="absolute right-4 top-1/2 -translate-y-1/2 opacity-0 group-hover:opacity-100 transition-opacity">
+                                        <AnimatePresence mode='wait'>
+                                            {copied ? (
+                                                <motion.div
+                                                    initial={{ scale: 0.5, opacity: 0 }}
+                                                    animate={{ scale: 1, opacity: 1 }}
+                                                    exit={{ scale: 0.5, opacity: 0 }}
+                                                    className="flex items-center gap-1 text-green-400 bg-green-400/10 px-2 py-1 rounded text-xs font-bold"
+                                                >
+                                                    <Check className="w-3 h-3" />
+                                                </motion.div>
+                                            ) : (
+                                                <div className="text-zinc-400 bg-zinc-800 p-1.5 rounded hover:text-white hover:bg-zinc-700">
+                                                    <Copy className="w-4 h-4" />
+                                                </div>
+                                            )}
+                                        </AnimatePresence>
+                                    </div>
+                                </div>
+                                <div className="mt-4 flex gap-2">
+                                    <div className="w-2 h-4 bg-nofx-gold animate-pulse"></div>
+                                </div>
+                            </div>
+                        </div>
+                    </motion.div>
+                </div>
+            </div>
+        </section>
+    )
+}

web/src/pages/LandingPage.tsx

@@ -5,6 +5,7 @@ import FooterSection from '../components/landing/FooterSection'
 import TerminalHero from '../components/landing/core/TerminalHero'
 import LiveFeed from '../components/landing/core/LiveFeed'
 import AgentGrid from '../components/landing/core/AgentGrid'
+import DeploymentHub from '../components/landing/core/DeploymentHub'
 import { useAuth } from '../contexts/AuthContext'
 import { useLanguage } from '../contexts/LanguageContext'
 
@@ -42,6 +43,8 @@ export function LandingPage() {
 
         <AgentGrid />
 
+        <DeploymentHub />
+
         <FooterSection language={language} />
 
         {showLoginModal && (