admin api: generate openapi spec using utoipa (wip)

Cargo.lock

@@ -1288,6 +1288,7 @@ dependencies = [
  "tokio",
  "tracing",
  "tracing-subscriber",
+ "utoipa",
 ]
 
 [[package]]
@@ -1318,6 +1319,7 @@ dependencies = [
  "tokio",
  "tracing",
  "url",
+ "utoipa",
 ]
 
 [[package]]
@@ -2272,6 +2274,7 @@ checksum = "8c9c992b02b5b4c94ea26e32fe5bccb7aa7d9f390ab5c1221ff895bc7ea8b652"
 dependencies = [
  "equivalent",
  "hashbrown 0.15.2",
+ "serde",
 ]
 
 [[package]]
@@ -4768,6 +4771,29 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "utoipa"
+version = "5.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "435c6f69ef38c9017b4b4eea965dfb91e71e53d869e896db40d1cf2441dd75c0"
+dependencies = [
+ "indexmap 2.7.1",
+ "serde",
+ "serde_json",
+ "utoipa-gen",
+]
+
+[[package]]
+name = "utoipa-gen"
+version = "5.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a77d306bc75294fd52f3e99b13ece67c02c1a2789190a6f31d32f736624326f7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.98",
+]
+
 [[package]]
 name = "uuid"
 version = "1.4.1"