feat(frontend) : add DatabaseInfo type and service

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/services/dto/application.ts

@@ -12,6 +12,7 @@ type Environment = {
     deployScriptPath: string
     maintenanceFilePath: string
     appUrl?: string
+    databaseName?: string
     logFiles: LogFile[]
     maintenance: boolean
 }
@@ -22,6 +23,7 @@ type EnvironmentWrite = {
     deployScriptPath: string
     maintenanceFilePath: string
     appUrl?: string
+    databaseName?: string
     logFiles: LogFile[]
 }
 

frontend/services/dto/dashboard.ts

@@ -22,6 +22,16 @@ type PortMapping = {
     protocol: string
 }
 
+type DatabaseInfo = {
+    connected: boolean
+    name: string
+    size: string
+    tableCount: number
+    activeConnections: number
+    cacheHitRatio: number
+    largestTable: string
+}
+
 type EnvironmentHealth = {
     status: string
     version: string