Remove system settings functionality and related database migrations

server/internal/db/system.go

@@ -1,8 +1,6 @@
 package db
 
 import (
-	"crypto/rand"
-	"encoding/base64"
 	"fmt"
 )
 
@@ -13,55 +11,6 @@ type UserStats struct {
 	ActiveUsers     int `json:"activeUsers"` // Users with activity in last 30 days
 }
 
-// GetSystemSetting retrieves a system setting by key
-func (db *database) GetSystemSetting(key string) (string, error) {
-	var value string
-	query := db.NewQuery().
-		Select("value").
-		From("system_settings").
-		Where("key = ").
-		Placeholder(key)
-	err := db.QueryRow(query.String(), query.args...).Scan(&value)
-	if err != nil {
-		return "", err
-	}
-
-	return value, nil
-}
-
-// SetSystemSetting stores or updates a system setting
-func (db *database) SetSystemSetting(key, value string) error {
-	query := db.NewQuery().
-		Insert("system_settings", "key", "value").
-		Values(2).
-		AddArgs(key, value).
-		Write("ON CONFLICT(key) DO UPDATE SET value = ").
-		Placeholder(value)
-
-	_, err := db.Exec(query.String(), query.args...)
-
-	if err != nil {
-		return fmt.Errorf("failed to store system setting: %w", err)
-	}
-
-	return nil
-}
-
-// generateRandomSecret generates a cryptographically secure random string
-func generateRandomSecret(bytes int) (string, error) {
-	log := getLogger().WithGroup("system")
-	log.Debug("generating random secret", "bytes", bytes)
-
-	b := make([]byte, bytes)
-	_, err := rand.Read(b)
-	if err != nil {
-		return "", fmt.Errorf("failed to generate random bytes: %w", err)
-	}
-
-	secret := base64.StdEncoding.EncodeToString(b)
-	return secret, nil
-}
-
 // GetSystemStats returns system-wide statistics
 func (db *database) GetSystemStats() (*UserStats, error) {
 	stats := &UserStats{}