fix(llm-router): gate the console UI behind a default-on feature; sync stale worker locks

llm-router/Cargo.toml

@@ -19,7 +19,7 @@ path = "src/lib.rs"
 
 [dependencies]
 iii-sdk = "=0.21.6"
-iii-console-ui = { path = "../crates/console-ui" }
+iii-console-ui = { path = "../crates/console-ui", optional = true }
 # Re-exports the same `opentelemetry` the SDK uses, so we can carry the active
 # OTel context across `tokio::spawn` boundaries (shared `Context` global).
 # 0.21.5 adds the live span-start push, so `router::chat` renders in the
@@ -43,3 +43,10 @@ tracing-subscriber = { version = "0.3", features = ["fmt", "env-filter"] }
 
 [dev-dependencies]
 tokio = { version = "1", features = ["test-util"] }
+
+[features]
+# The injectable console UI (ui.rs + the pnpm bundle in build.rs). Path
+# dependents that only consume the library types disable default features to
+# drop the Node toolchain from their build graph.
+default = ["console-ui"]
+console-ui = ["dep:iii-console-ui"]

llm-router/build.rs

@@ -18,6 +18,13 @@ fn main() {
         std::env::var("TARGET").expect("TARGET must be set by Cargo build scripts")
     );
 
+    // Everything below builds/validates the injectable console UI bundle.
+    // Skip it when the `console-ui` feature is off (lib-only path dependents)
+    // so their builds never need a Node toolchain.
+    if std::env::var_os("CARGO_FEATURE_CONSOLE_UI").is_none() {
+        return;
+    }
+
     // `dist/` itself is not listed: include_str! reads it directly, and
     // listing it would rebuild-loop on our own output.
     println!("cargo:rerun-if-changed=ui/page.tsx");

llm-router/src/lib.rs

@@ -18,4 +18,5 @@ pub mod system_prompt;
 pub mod testkit;
 pub mod triggers;
 pub mod types;
+#[cfg(feature = "console-ui")]
 pub mod ui;

llm-router/src/main.rs

@@ -86,6 +86,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     );
 
     register_router(iii.clone()).await?;
+    #[cfg(feature = "console-ui")]
     llm_router::ui::register(&iii);
     tracing::info!(url = %cli.url, "llm-router registered");
 

provider-anthropic/Cargo.toml

@@ -19,7 +19,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::anthropic::stream` renders while streaming.
 iii-sdk = "=0.21.6"

provider-claude-code/Cargo.toml

@@ -16,7 +16,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::claude-code::stream` renders while streaming.
 iii-sdk = "=0.21.6"

provider-deepseek/Cargo.toml

@@ -16,7 +16,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph).
 iii-sdk = "=0.21.6"
 serde = { version = "1", features = ["derive"] }

provider-kimi/Cargo.toml

@@ -16,7 +16,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin so the provider and router share one IIIClient type.
 iii-sdk = "=0.21.6"
 serde = { version = "1", features = ["derive"] }

provider-llamacpp/Cargo.toml

@@ -16,7 +16,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::llamacpp::stream` renders while streaming.
 iii-sdk = "=0.21.6"

provider-openai-codex/Cargo.toml

@@ -16,7 +16,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::openai-codex::stream` renders while streaming.
 iii-sdk = "=0.21.6"

provider-openai/Cargo.toml

@@ -19,7 +19,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::openai::stream` renders while streaming.
 iii-sdk = "=0.21.6"

provider-xai/Cargo.toml

@@ -19,7 +19,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::xai::stream` renders while streaming.
 iii-sdk = "=0.21.6"

provider-zai/Cargo.toml

@@ -16,7 +16,7 @@ path = "src/main.rs"
 path = "src/lib.rs"
 
 [dependencies]
-llm-router = { path = "../llm-router" }
+llm-router = { path = "../llm-router", default-features = false }
 # Must match llm-router's pin (one iii-sdk per graph). 0.21.5 brings the
 # live span-start push: `provider::zai::stream` renders while streaming.
 iii-sdk = "=0.21.6"