Odoo ERP ported to Go — complete backend + original OWL frontend

Full port of Odoo's ERP system from Python to Go, with the original
Odoo JavaScript frontend (OWL framework) running against the Go server.

Backend (10,691 LoC Go):
- Custom ORM: CRUD, domains→SQL with JOINs, computed fields, sequences
- 93 models across 14 modules (base, account, sale, stock, purchase, hr,
  project, crm, fleet, product, l10n_de, google_address/translate/calendar)
- Auth with bcrypt + session cookies
- Setup wizard (company, SKR03 chart, admin, demo data)
- Double-entry bookkeeping constraint
- Sale→Invoice workflow (confirm SO → generate invoice → post)
- SKR03 chart of accounts (110 accounts) + German taxes (USt/VSt)
- Record rules (multi-company filter)
- Google integrations as opt-in modules (Maps, Translate, Calendar)

Frontend:
- Odoo's original OWL webclient (503 JS modules, 378 XML templates)
- JS transpiled via Odoo's js_transpiler (ES modules → odoo.define)
- SCSS compiled to CSS (675KB) via dart-sass
- XML templates compiled to registerTemplate() JS calls
- Static file serving from Odoo source addons
- Login page, session management, menu navigation
- Contacts list view renders with real data from PostgreSQL

Infrastructure:
- 14MB single binary (CGO_ENABLED=0)
- Docker Compose (Go server + PostgreSQL 16)
- Zero phone-home (no outbound calls to odoo.com)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cmd/odoo-server/main.go

@@ -0,0 +1,104 @@
+// Odoo Go Server — Main entrypoint
+// Mirrors: odoo-bin
+//
+// Usage:
+//
+//	go run ./cmd/odoo-server
+//	ODOO_DB_HOST=localhost ODOO_DB_PORT=5432 go run ./cmd/odoo-server
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	// Import all modules (register models via init())
+	_ "odoo-go/addons/base"
+	_ "odoo-go/addons/account"
+	_ "odoo-go/addons/product"
+	_ "odoo-go/addons/sale"
+	_ "odoo-go/addons/stock"
+	_ "odoo-go/addons/purchase"
+	_ "odoo-go/addons/hr"
+	_ "odoo-go/addons/project"
+	_ "odoo-go/addons/crm"
+	_ "odoo-go/addons/fleet"
+	_ "odoo-go/addons/l10n_de"
+
+	// Google integrations (opt-in, only active with API keys)
+	_ "odoo-go/addons/google_address"
+	_ "odoo-go/addons/google_translate"
+	_ "odoo-go/addons/google_calendar"
+
+	"odoo-go/pkg/modules"
+	"odoo-go/pkg/server"
+	"odoo-go/pkg/service"
+	"odoo-go/pkg/tools"
+)
+
+func main() {
+	log.SetFlags(log.Ltime | log.Lshortfile)
+
+	// Load configuration
+	cfg := tools.DefaultConfig()
+	cfg.LoadFromEnv()
+
+	log.Printf("odoo: Odoo Go Server 19.0")
+	log.Printf("odoo: database: %s@%s:%d/%s", cfg.DBUser, cfg.DBHost, cfg.DBPort, cfg.DBName)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// Handle shutdown signals
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
+	go func() {
+		sig := <-sigCh
+		log.Printf("odoo: received signal %s, shutting down...", sig)
+		cancel()
+	}()
+
+	// Connect to database
+	pool, err := pgxpool.New(ctx, cfg.DSN())
+	if err != nil {
+		log.Fatalf("odoo: database connection failed: %v", err)
+	}
+	defer pool.Close()
+
+	if err := pool.Ping(ctx); err != nil {
+		log.Fatalf("odoo: database ping failed: %v", err)
+	}
+	log.Println("odoo: database connected")
+
+	// Load modules (base is auto-registered via init())
+	log.Println("odoo: loading modules...")
+	if err := modules.LoadModules(modules.All()); err != nil {
+		log.Fatalf("odoo: module loading failed: %v", err)
+	}
+	log.Printf("odoo: %d modules loaded", len(modules.All()))
+
+	// Initialize database schema
+	log.Println("odoo: initializing database schema...")
+	if err := service.InitDatabase(ctx, pool); err != nil {
+		log.Fatalf("odoo: schema init failed: %v", err)
+	}
+
+	// Check if setup is needed (first boot)
+	if service.NeedsSetup(ctx, pool) {
+		log.Println("odoo: database is empty — setup wizard will be shown at /web/setup")
+	} else {
+		log.Println("odoo: database already initialized")
+	}
+
+	// Start HTTP server
+	srv := server.New(cfg, pool)
+	log.Printf("odoo: starting HTTP service on %s:%d", cfg.HTTPInterface, cfg.HTTPPort)
+
+	if err := srv.Start(); err != nil {
+		log.Fatalf("odoo: server error: %v", err)
+	}
+}