Added the functionality to insert a workout

Cargo.lock

@@ -101,6 +101,31 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "axum-extra"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45bf463831f5131b7d3c756525b305d40f1185b688565648a92e1392ca35713d"
+dependencies = [
+ "axum",
+ "axum-core",
+ "bytes",
+ "form_urlencoded",
+ "futures-util",
+ "http",
+ "http-body",
+ "http-body-util",
+ "mime",
+ "pin-project-lite",
+ "rustversion",
+ "serde",
+ "serde_html_form",
+ "serde_path_to_error",
+ "tower",
+ "tower-layer",
+ "tower-service",
+]
+
 [[package]]
 name = "backtrace"
 version = "0.3.75"
@@ -737,6 +762,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b192c782037fadd9cfa75548310488aabdbf3d2da73885b31bd0abd03351285"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.15"
@@ -1307,6 +1341,19 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_html_form"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d2de91cf02bbc07cde38891769ccd5d4f073d22a40683aa4bc7a95781aaa2c4"
+dependencies = [
+ "form_urlencoded",
+ "indexmap",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "serde_json"
 version = "1.0.140"
@@ -2294,9 +2341,12 @@ name = "workout"
 version = "0.1.0"
 dependencies = [
  "axum",
+ "axum-extra",
  "dotenvy",
+ "itertools",
  "maud",
  "serde",
+ "serde_json",
  "sqlx",
  "tokio",
  "tower",