refactor(auth): replace dashboard sessions with stateless tokens and session control (#6329)

* refactor(auth): replace dashboard sessions with stateless tokens

* feat(auth): harden session issuance and distributed enforcement

* fix(proxy): preserve trusted proxy compatibility defaults

* refactor: address dashboard auth review feedback

* refactor: remove classic frontend and flatten web app

.gitignore

@@ -8,10 +8,8 @@ upload
 build
 *.db-journal
 logs
-web/default/dist
-web/classic/dist
-web/node_modules
 web/dist
+web/node_modules
 .env
 one-api
 new-api
@@ -28,7 +26,7 @@ plans
 
 electron/node_modules
 electron/dist
-data/
+/data/
 .gomodcache/
 .gocache-temp
 .gopath