Add system updates page to admin section

Add a new API endpoint and UI section for checking system updates, including internationalized locale strings and necessary dependency updates.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 77cfe984-2c65-4152-bb7a-0df28274fe66
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 1e6de894-7c78-4557-b01a-a2c1c01f4155
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/c3c252e4-c83d-40ca-9fff-99a3ea60701e/77cfe984-2c65-4152-bb7a-0df28274fe66/1WKAcHk
Replit-Helium-Checkpoint-Created: true

pnpm-lock.yaml

@@ -135,6 +135,9 @@ importers:
       sanitize-html:
         specifier: ^2.17.3
         version: 2.17.3
+      semver:
+        specifier: ^7.6.3
+        version: 7.8.0
       socket.io:
         specifier: ^4.8.3
         version: 4.8.3
@@ -175,6 +178,9 @@ importers:
       '@types/sanitize-html':
         specifier: ^2.16.1
         version: 2.16.1
+      '@types/semver':
+        specifier: ^7.5.8
+        version: 7.7.1
       '@types/web-push':
         specifier: ^3.6.4
         version: 3.6.4
@@ -2996,6 +3002,9 @@ packages:
   '@types/sanitize-html@2.16.1':
     resolution: {integrity: sha512-n9wjs8bCOTyN/ynwD8s/nTcTreIHB1vf31vhLMGqUPNHaweKC4/fAl4Dj+hUlCTKYgm4P3k83fmiFfzkZ6sgMA==}
 
+  '@types/semver@7.7.1':
+    resolution: {integrity: sha512-FmgJfu+MOcQ370SD0ev7EI8TlCAfKYU+B4m5T3yXc1CiRN94g/SZPtsCkk506aUDtlMnFZvasDwHHUcZUEaYuA==}
+
   '@types/send@1.2.1':
     resolution: {integrity: sha512-arsCikDvlU99zl1g69TcAB3mzZPpxgw0UQnaHeC1Nwb015xp8bknZv5rIfri9xTOcMuaVgvabfIRA7PSZVuZIQ==}
 
@@ -4668,6 +4677,11 @@ packages:
     resolution: {integrity: sha512-BR7VvDCVHO+q2xBEWskxS6DJE1qRnb7DxzUrogb71CWoSficBxYsiAGd+Kl0mmq/MprG9yArRkyrQxTO6XjMzA==}
     hasBin: true
 
+  semver@7.8.0:
+    resolution: {integrity: sha512-AcM7dV/5ul4EekoQ29Agm5vri8JNqRyj39o0qpX6vDF2GZrtutZl5RwgD1XnZjiTAfncsJhMI48QQH3sN87YNA==}
+    engines: {node: '>=10'}
+    hasBin: true
+
   send@1.2.1:
     resolution: {integrity: sha512-1gnZf7DFcoIcajTjTwjwuDjzuz4PPcY2StKPlsGAQ1+YH20IRVrBaXSWmdjowTJ6u8Rc01PoYOGHXfP1mYcZNQ==}
     engines: {node: '>= 18'}
@@ -7540,6 +7554,8 @@ snapshots:
     dependencies:
       htmlparser2: 10.1.0
 
+  '@types/semver@7.7.1': {}
+
   '@types/send@1.2.1':
     dependencies:
       '@types/node': 25.3.5
@@ -9221,6 +9237,8 @@ snapshots:
 
   semver@6.3.1: {}
 
+  semver@7.8.0: {}
+
   send@1.2.1:
     dependencies:
       debug: 4.4.3