Implement Nextcloud login flow

Cargo.lock

@@ -934,6 +934,20 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "dashmap"
+version = "6.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5041cc499144891f3790297212f32a74fb938e5136a14943f338ef9e0ae276cf"
+dependencies = [
+ "cfg-if",
+ "crossbeam-utils",
+ "hashbrown 0.14.5",
+ "lock_api",
+ "once_cell",
+ "parking_lot_core",
+]
+
 [[package]]
 name = "der"
 version = "0.7.9"
@@ -1312,6 +1326,12 @@ version = "0.12.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
 
+[[package]]
+name = "hashbrown"
+version = "0.14.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+
 [[package]]
 name = "hashbrown"
 version = "0.15.2"
@@ -2745,6 +2765,7 @@ dependencies = [
  "argon2",
  "async-trait",
  "clap",
+ "dashmap",
  "opentelemetry",
  "opentelemetry-otlp",
  "opentelemetry-semantic-conventions",
@@ -2769,6 +2790,7 @@ dependencies = [
  "tracing-actix-web",
  "tracing-opentelemetry",
  "tracing-subscriber",
+ "uuid",
 ]
 
 [[package]]
@@ -2876,6 +2898,7 @@ dependencies = [
  "lazy_static",
  "password-auth",
  "pbkdf2",
+ "rand",
  "regex",
  "rstest",
  "rstest_reuse",