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

Cargo.toml

@@ -1,40 +1,18 @@
-[package]
-name = "yarr"
-version = "0.1.0"
-edition = "2021"
-license = "MIT"
+[workspace]
+members = [
+    "yarr-cli",
+    "yarr-api"
+]
+resolver = "2"
 
-[[bin]]
-name = "yarr"
-path = "src/main.rs"
-
-[dependencies]
-clap = { version = "4.5", features = ["derive", "env"] }
-clap_complete = "4.5"
-error-stack = "0.5"
-thiserror = "2.0"
+[workspace.dependencies]
+# Common dependencies that can be shared across workspace members
 tokio = { version = "1.43.1", features = ["full"] }
-tracing = "0.1"
-tracing-subscriber = "0.3"
-
-# TUI dependencies
-ratatui = { version = "0.28", features = ["crossterm"] }
-crossterm = "0.28"
-
-# HTTP client and serialization
-reqwest = { version = "0.12", features = ["json"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-
-# Date/time handling
+reqwest = { version = "0.12", features = ["json"] }
 chrono = { version = "0.4", features = ["serde"] }
-
-# Async utilities
-futures = "0.3"
-urlencoding = "2.1.3"
-serde_path_to_error = "0.1.20"
-
-# Configuration
-config = "0.14"
-toml = "0.8"
-dirs = "5.0"
+thiserror = "2.0"
+error-stack = "0.5"
+tracing = "0.1"
+tracing-subscriber = "0.3"