fix(dash): detect rocm serve's default port in chat auto-detect (#88)

The TUI chat's local-engine TCP-probe fallback only checked Lemonade's
:13305 and vLLM's :8000, so it never found vLLM instances started via
`rocm serve <model> --engine vllm` in non-managed mode, which listen
on rocm-serve's own default port :11435.

Add :11435 as a third probe candidate and update the UI copy that
hardcoded the old two-port list.

EAI-7220

Signed-off-by: fredespi <fredrik.espinoza@gmail.com>

Author: fredespi

crates/rocm-dash-tui/src/app/mod.rs

@@ -995,8 +995,9 @@ impl AppState {
             self.chat_detect_offer = Some(cfg);
         } else {
             self.chat_detect_offer = None;
-            self.chat_detect_msg =
-                Some("no local engine found (Lemonade :13305 / vLLM :8000)".into());
+            self.chat_detect_msg = Some(
+                "no local engine found (Lemonade :13305 / vLLM :8000 / rocm serve :11435)".into(),
+            );
         }
     }
 

crates/rocm-dash-tui/src/llm.rs

@@ -139,14 +139,17 @@ pub fn probe_endpoint(base_url: &str, timeout: Duration) -> bool {
     false
 }
 
-/// Probe the known local serving endpoints in priority order (Lemonade, then vLLM) and return the first reachable one.
+/// Probe the known local serving endpoints in priority order (Lemonade, then
+/// vLLM, then `rocm serve`'s non-managed default) and return the first
+/// reachable one.
 ///
 /// Used by the TUI's in-app "detect a local engine" action so the user need not run the CLI skill first.
 /// TCP-only (no HTTP); never blocks longer than [`PROBE_TIMEOUT`] per candidate.
 pub fn detect_local_endpoint() -> Option<&'static str> {
     [
         crate::skills::LEMONADE_ENDPOINT,
         crate::skills::VLLM_ENDPOINT,
+        crate::skills::ROCM_SERVE_ENDPOINT,
     ]
     .into_iter()
     .find(|ep| probe_endpoint(ep, PROBE_TIMEOUT))
@@ -324,4 +327,21 @@ mod tests {
         ));
         assert!(!probe_endpoint("not a url", Duration::from_millis(100)));
     }
+
+    #[test]
+    fn detect_local_endpoint_probes_rocm_serve_default_port() {
+        // A listener on rocm serve's (non-managed) default port must be picked
+        // up by the fallback probe, not just Lemonade/vLLM's ports.
+        let Ok(listener) =
+            std::net::TcpListener::bind(("127.0.0.1", crate::skills::ROCM_SERVE_PORT))
+        else {
+            // Port already bound in this environment; skip rather than flake.
+            return;
+        };
+        assert_eq!(
+            detect_local_endpoint(),
+            Some(crate::skills::ROCM_SERVE_ENDPOINT)
+        );
+        drop(listener);
+    }
 }

crates/rocm-dash-tui/src/skills.rs

@@ -21,6 +21,13 @@ pub const LEMONADE_ENDPOINT: &str = "http://localhost:13305/v1";
 /// vLLM's conventional OpenAI-compatible endpoint + port.
 pub const VLLM_PORT: u16 = 8000;
 pub const VLLM_ENDPOINT: &str = "http://localhost:8000/v1";
+/// `rocm serve`'s (non-managed) default vLLM port.
+///
+/// Mirrors `rocm_core::DEFAULT_LOCAL_PORT`; duplicated as a literal because
+/// this crate deliberately carries no `rocm-core` dependency (see
+/// `AppState::model_recipes`).
+pub const ROCM_SERVE_PORT: u16 = 11_435;
+pub const ROCM_SERVE_ENDPOINT: &str = "http://localhost:11435/v1";
 
 /// One typed step in a skill manifest. Tagged by `type` in TOML.
 #[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]

crates/rocm-dash-tui/src/ui/tabs/chat.rs

@@ -60,7 +60,7 @@ fn draw_consent(f: &mut Frame, area: Rect, state: &AppState, theme: &Theme) {
         (
             " Chat — detecting… ",
             vec![Line::from(Span::styled(
-                "Probing for a local engine (Lemonade :13305 / vLLM :8000)…",
+                "Probing for a local engine (Lemonade :13305 / vLLM :8000 / rocm serve :11435)…",
                 Style::default().fg(theme.fg),
             ))],
         )
@@ -209,7 +209,7 @@ fn consent_gate_lines<'a>(
                     Style::default().fg(theme.muted),
                 )),
                 Line::from(Span::styled(
-                    "  • or run a local endpoint at 127.0.0.1:8000",
+                    "  • or run a local endpoint (vLLM :8000, rocm serve :11435)",
                     Style::default().fg(theme.muted),
                 )),
             ],