feat: add Keycloak authentication

pnpm-lock.yaml

@@ -83,6 +83,9 @@ importers:
       katex:
         specifier: ^0.17.0
         version: 0.17.0
+      keycloak-js:
+        specifier: 26.2.4
+        version: 26.2.4
       lucide-react:
         specifier: ^0.468.0
         version: 0.468.0(react@19.2.7)
@@ -2859,6 +2862,9 @@ packages:
   kdbush@4.1.0:
     resolution: {integrity: sha512-e9vurzrXJQrFX6ckpHP3bvj5l+9CnYzkxDNnNQ1h2QTqdWsUAJgXiKdGNcOa1EY85dU8KbQ+z/FdQdB7P+9yfQ==}
 
+  keycloak-js@26.2.4:
+    resolution: {integrity: sha512-PnXpR3ubETGOt0B/Qt2lxmPbkZr5bc3vlQsOqDoTPPQsZRp7JjhTKxlJ187uWh8qJhvBab6Gsjb06a8ayOPfuw==}
+
   keyv@4.5.4:
     resolution: {integrity: sha512-oxVHkHR/EJf2CNXnWxRLW6mg7JyCCUcG0DtEGmL2ctUo1PNTin1PUil+r/+4r5MpVgC/fn1kjsx7mjSujKqIpw==}
 
@@ -6645,6 +6651,8 @@ snapshots:
 
   kdbush@4.1.0: {}
 
+  keycloak-js@26.2.4: {}
+
   keyv@4.5.4:
     dependencies:
       json-buffer: 3.0.1