feat(yarr): restructure into workspace with separate API and CLI crates

Cargo.lock

@@ -1777,17 +1777,6 @@ dependencies = [
  "serde_core",
 ]
 
-[[package]]
-name = "serde_path_to_error"
-version = "0.1.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10a9ff822e371bb5403e391ecd83e182e0e77ba7f6fe0160b795797109d1b457"
-dependencies = [
- "itoa",
- "serde",
- "serde_core",
-]
-
 [[package]]
 name = "serde_spanned"
 version = "0.6.9"
@@ -2806,15 +2795,28 @@ dependencies = [
  "error-stack",
  "futures",
  "ratatui",
- "reqwest",
  "serde",
  "serde_json",
- "serde_path_to_error",
  "thiserror 2.0.12",
  "tokio",
  "toml",
  "tracing",
  "tracing-subscriber",
+ "yarr-api",
+]
+
+[[package]]
+name = "yarr-api"
+version = "0.1.0"
+dependencies = [
+ "chrono",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.12",
+ "tokio",
+ "tracing",
+ "tracing-subscriber",
  "urlencoding",
 ]