fix(i18n): translate health popup details and add Italian messages

AppImage/messages/en/common.json

@@ -4684,6 +4684,44 @@
       "proxmox_storages": "Proxmox storage"
     },
     "details": {
+      "noTemperatureSensor": "No temperature sensor detected - install lm-sensors if hardware supports it",
+      "cpuHighSustained": "Sustained high CPU usage",
+      "temperatureElevated": "Temperature elevated",
+      "cpuSustained": "CPU >{threshold}% sustained for {seconds}s",
+      "cpuCheckFailed": "CPU check failed: {error}",
+      "sensorHighSamplesSpan": "Sensor temperature {temperature}°C >80°C; high samples span {duration}",
+      "noSwapConfigured": "No swap configured",
+      "ramHighSustained": "High RAM usage sustained",
+      "swapRamPressure": "Swap nearly full with RAM tight",
+      "ramSustained": "RAM >{threshold}% sustained for {seconds}s",
+      "memoryPressure": "Memory pressure: swap {swapPercent}% used and only {ramAvailablePercent}% RAM available",
+      "memoryCheckFailed": "Memory check failed: {error}",
+      "pendingSecurityUpdates": "Security updates pending: {count}",
+      "pendingSecurityUpdatesUnpatched": "Security updates pending: {count} (days unpatched: {days})",
+      "pendingSecurityUpdatesDays": "Security updates pending: {count} (days waiting: {days})",
+      "systemNotUpdatedMonths": "System not updated in {days} days (>18 months)",
+      "systemNotUpdatedYear": "System not updated in {days} days (>1 year)",
+      "runningKernelUpdate": "Kernel update available for running {kernel}",
+      "kernelPveUpdates": "Kernel updates available: {kernelCount}; Proxmox updates available: {pveCount}",
+      "pendingPackageUpdates": "Package updates pending: {count}",
+      "updatesAptError": "Failed to check for updates (apt-get error)",
+      "updatesAptTimeout": "apt-get timed out - repository may be unreachable",
+      "kernelPackagesMore": "{technicalIdentity} (+{count} more)",
+      "nonRunningKernelUpdates": "Kernel updates available: {count} (none for the running kernel{optionalKernel})",
+      "unknownDetail": "Unknown",
+      "pveVersionAvailable": "PVE {current} -> {new} available",
+      "updatesCheckUnavailable": "Updates check unavailable: {error}",
+      "noFailedLogins": "No failed login attempts in 24h",
+      "fail2banInactive": "Fail2Ban installed but service not active",
+      "fail2banCheckUnavailable": "Unable to check Fail2Ban: {error}",
+      "uptimeKernelAdvice": "Uptime: {days} days (>1 year; consider updating kernel/system)",
+      "uptimeUnavailable": "Unable to determine uptime",
+      "failedLoginsWithinThreshold": "Failed login attempts in 24h: {count} (within threshold)",
+      "loginCheckUnavailable": "Unable to check login attempts",
+      "securityCheckUnavailable": "Security check unavailable: {error}",
+      "certificateExpired": "Certificate expired",
+      "certificateExpiresDays": "Certificate expiry (days): {days}",
+      "certificateInconclusive": "Certificate check inconclusive",
       "allOperational": "All systems operational",
       "normal": "Normal",
       "noIoErrors": "No I/O errors in dmesg",