chore: remove PostgreSQL configuration and related settings from codebase

Author: axadrn

.env.example

@@ -2,20 +2,6 @@
 JWT_SECRET=your-secret-key-min-32-characters
 ENCRYPTION_KEY=your-32-character-encryption-key
 
-# Server - Optional
-APP_ENV=development
-DB_CONNECTION=./data/deeploy.db?_pragma=foreign_keys(1)&_pragma=journal_mode(WAL)
-PORT=8090
-# COOKIE_SECURE defaults to true in production and false in development.
-#COOKIE_SECURE=false
-BUILD_DIR=/tmp/deeploy-builds
-TRAEFIK_CONFIG_DIR=/traefik/dynamic
-
-# Docs (internal)
-GITHUB_TOKEN=
-RESEND_API_KEY=
-RESEND_AUDIENCE_ID=
-
-# TUI (local debug)
-# Enable debug logging to debug.log when set.
-#DEBUG=1
+# Notes:
+# - APP_ENV is set by runtime context (production in docker-compose, development in local task).
+# - All other server settings use code defaults (SQLite, port, build paths, traefik config path).

docker-compose.yml

@@ -105,6 +105,7 @@ services:
       # SQLite database file
       - /opt/deeploy/data:/data
     environment:
+      APP_ENV: production
       JWT_SECRET: ${JWT_SECRET}
       ENCRYPTION_KEY: ${ENCRYPTION_KEY}
     restart: unless-stopped

internal/server/config/config.go

@@ -10,36 +10,32 @@ import (
 type Config struct {
 	AppEnv           string
 	Port             string
-	DBConnection     string // connection string
+	DBConnection     string
 	JWTSecret        string
 	EncryptionKey    string
 	CookieSecure     bool
 	BuildDir         string
-	TraefikConfigDir string // Directory for Traefik dynamic config files
+	TraefikConfigDir string
 }
 
 func Load() *Config {
 	godotenv.Load()
 
 	appEnv := getEnv("APP_ENV", "development")
 
-	// Database config - SQLite only
-	dbConnection := getEnv("DB_CONNECTION", getDBConnectionDefault())
-
 	// Always require secrets (generated by install script)
 	jwtSecret := requireEnv("JWT_SECRET", "min 32 characters")
 	encryptionKey := requireEnv("ENCRYPTION_KEY", "exactly 32 characters")
-	cookieSecure := getEnvBool("COOKIE_SECURE", appEnv == "production")
 
 	return &Config{
 		AppEnv:           appEnv,
-		Port:             getEnv("PORT", "8090"),
-		DBConnection:     dbConnection,
+		Port:             "8090",
+		DBConnection:     getDBConnectionDefault(),
 		JWTSecret:        jwtSecret,
 		EncryptionKey:    encryptionKey,
-		CookieSecure:     cookieSecure,
-		BuildDir:         getEnv("BUILD_DIR", "/tmp/deeploy-builds"),
-		TraefikConfigDir: getEnv("TRAEFIK_CONFIG_DIR", "/traefik/dynamic"),
+		CookieSecure:     appEnv == "production",
+		BuildDir:         "/tmp/deeploy-builds",
+		TraefikConfigDir: "/traefik/dynamic",
 	}
 }
 
@@ -59,20 +55,6 @@ func getEnv(key, fallback string) string {
 	return value
 }
 
-func getEnvBool(key string, fallback bool) bool {
-	value, exists := os.LookupEnv(key)
-	if !exists || value == "" {
-		return fallback
-	}
-	if value == "1" || value == "true" || value == "TRUE" || value == "True" {
-		return true
-	}
-	if value == "0" || value == "false" || value == "FALSE" || value == "False" {
-		return false
-	}
-	return fallback
-}
-
 func requireEnv(key, hint string) string {
 	value := os.Getenv(key)
 	if value == "" {