服务端媒体源导入/保存/客户端输出链路修复：支持 snake/camel、subcategories/sources，默认客户端可见，保存后发布兼容 media-types.json。

新增数据库同步 Job API、持久化状态、实时输出、最新任务恢复，以及系统日志聚合接口。
管理端优化：日志中心、运维实时状态框、同步输出自动滚动、仪表盘“输出”列、真实延迟空态、本地 favicon/avatar。
新增 server/unified-management/assets/favicon.ico 和 developer-avatar.png，并接好 /favicon.ico、/admin/favicon.ico、/setup/favicon.ico、/assets/*。
WinUI 随机放映室卡片优先显示子接口原始 Description。
Inno 安装器输出框改为选区末尾 + SendMessage 滚动到底部。

server/unified-management/internal/db/database_sync_jobs.go

@@ -0,0 +1,141 @@
+package db
+
+import (
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"strings"
+)
+
+type syncJobMessage struct {
+	Output   []string `json:"output"`
+	Warnings []string `json:"warnings"`
+	Errors   []string `json:"errors"`
+}
+
+type syncJobScanner interface {
+	Scan(dest ...any) error
+}
+
+func (s *Store) insertDatabaseSyncJob(direction, status string, output, warnings, jobErrors []string, tables map[string]int, finishedAt string) (DatabaseSyncJob, error) {
+	startedAt := Now()
+	message, tablesJSON := encodeDatabaseSyncJob(output, warnings, jobErrors, tables)
+	id, err := s.insertID(`INSERT INTO database_sync_jobs (direction, status, message, tables_json, started_at, finished_at) VALUES (?, ?, ?, ?, ?, ?)`,
+		direction, status, message, tablesJSON, startedAt, finishedAt)
+	if err != nil {
+		return DatabaseSyncJob{}, err
+	}
+	return s.GetDatabaseSyncJob(id)
+}
+
+func (s *Store) updateDatabaseSyncJob(id int64, status string, output, warnings, jobErrors []string, tables map[string]int, finishedAt string) error {
+	message, tablesJSON := encodeDatabaseSyncJob(output, warnings, jobErrors, tables)
+	if _, err := s.exec(`UPDATE database_sync_jobs SET status = ?, message = ?, tables_json = ?, finished_at = ? WHERE id = ?`,
+		status, message, tablesJSON, finishedAt, id); err != nil {
+		return err
+	}
+	if job, err := s.GetDatabaseSyncJob(id); err == nil {
+		s.mu.Lock()
+		if s.status.CurrentSyncJob != nil && s.status.CurrentSyncJob.ID == id {
+			s.status.CurrentSyncJob = &job
+		}
+		s.mu.Unlock()
+	}
+	return nil
+}
+
+func (s *Store) GetDatabaseSyncJob(id int64) (DatabaseSyncJob, error) {
+	job, err := scanDatabaseSyncJob(s.queryRow(`SELECT id, direction, status, message, tables_json, started_at, finished_at FROM database_sync_jobs WHERE id = ?`, id))
+	if errors.Is(err, sql.ErrNoRows) {
+		return DatabaseSyncJob{}, errors.New("database sync job not found")
+	}
+	return job, err
+}
+
+func (s *Store) LatestDatabaseSyncJob() (DatabaseSyncJob, error) {
+	job, err := scanDatabaseSyncJob(s.queryRow(`SELECT id, direction, status, message, tables_json, started_at, finished_at FROM database_sync_jobs ORDER BY id DESC LIMIT 1`))
+	if errors.Is(err, sql.ErrNoRows) {
+		return DatabaseSyncJob{}, errors.New("database sync job not found")
+	}
+	return job, err
+}
+
+func (s *Store) restoreDatabaseSyncStatus() {
+	job, err := s.LatestDatabaseSyncJob()
+	if err != nil {
+		return
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if job.Status == "running" {
+		s.status.CurrentSyncJob = &job
+	} else {
+		s.status.CurrentSyncJob = nil
+	}
+	if job.FinishedAt != "" {
+		s.status.LastSyncAt = job.FinishedAt
+	} else {
+		s.status.LastSyncAt = job.StartedAt
+	}
+	if job.Status == "failed" {
+		s.status.LastSyncError = strings.Join(job.Errors, "; ")
+	} else {
+		s.status.LastSyncError = ""
+	}
+}
+
+func scanDatabaseSyncJob(scanner syncJobScanner) (DatabaseSyncJob, error) {
+	var job DatabaseSyncJob
+	var message, tablesJSON string
+	if err := scanner.Scan(&job.ID, &job.Direction, &job.Status, &message, &tablesJSON, &job.StartedAt, &job.FinishedAt); err != nil {
+		return DatabaseSyncJob{}, err
+	}
+	decodeDatabaseSyncJob(message, tablesJSON, &job)
+	return job, nil
+}
+
+func encodeDatabaseSyncJob(output, warnings, jobErrors []string, tables map[string]int) (string, string) {
+	if output == nil {
+		output = []string{}
+	}
+	if warnings == nil {
+		warnings = []string{}
+	}
+	if jobErrors == nil {
+		jobErrors = []string{}
+	}
+	if tables == nil {
+		tables = map[string]int{}
+	}
+	message, _ := json.Marshal(syncJobMessage{Output: output, Warnings: warnings, Errors: jobErrors})
+	tableData, _ := json.Marshal(tables)
+	return string(message), string(tableData)
+}
+
+func decodeDatabaseSyncJob(message, tablesJSON string, job *DatabaseSyncJob) {
+	job.Output = []string{}
+	job.Warnings = []string{}
+	job.Errors = []string{}
+	job.Tables = map[string]int{}
+	var payload syncJobMessage
+	if strings.TrimSpace(message) != "" && json.Unmarshal([]byte(message), &payload) == nil {
+		job.Output = payload.Output
+		job.Warnings = payload.Warnings
+		job.Errors = payload.Errors
+	} else if strings.TrimSpace(message) != "" {
+		job.Output = []string{message}
+	}
+	_ = json.Unmarshal([]byte(tablesJSON), &job.Tables)
+	if job.Output == nil {
+		job.Output = []string{}
+	}
+	if job.Warnings == nil {
+		job.Warnings = []string{}
+	}
+	if job.Errors == nil {
+		job.Errors = []string{}
+	}
+	if job.Tables == nil {
+		job.Tables = map[string]int{}
+	}
+}