feat: implement workflow findings sharing for inter-agent communication in workflows

src/service/provider.rs

@@ -30,11 +30,13 @@ impl LlmClient {
     /// Construct a client, falling back to built-in defaults for empty inputs.
     ///
     /// Flow: empty api_key/model → substitute defaults → build reqwest client
-    /// with connect/request timeouts (falling back to an untimed client if
-    /// the builder fails) → normalize base_url.
+    /// with connect/request timeouts → if TLS config fails, retry with just
+    /// request timeout (no connect timeout) → normalize base_url.
     ///
     /// Why: empty strings are treated as "unset" rather than errors so callers
     /// can pass through unconfigured settings without special-casing them.
+    /// Timeouts are always enforced — the pure-default-client fallback is only
+    /// used as a last resort when even the no-connect-timeout build fails.
     pub fn new(mut api_key: String, model: String, base_url: Option<String>) -> Self {
         if api_key.is_empty() {
             api_key = DEFAULT_API_KEY.to_string();
@@ -51,8 +53,24 @@ impl LlmClient {
         {
             Ok(c) => c,
             Err(e) => {
-                tracing::warn!("warning: failed to build reqwest client with timeouts: {}. Using default client without timeouts.", e);
-                reqwest::blocking::Client::new()
+                tracing::warn!(
+                    "failed to build reqwest client with connect timeout: {}. \
+                     retrying without connect timeout",
+                    e,
+                );
+                match reqwest::blocking::Client::builder()
+                    .timeout(REQUEST_TIMEOUT)
+                    .build()
+                {
+                    Ok(c) => c,
+                    Err(e2) => {
+                        tracing::warn!(
+                            "also failed: {}. using default client (no configured timeouts)",
+                            e2,
+                        );
+                        reqwest::blocking::Client::new()
+                    }
+                }
             }
         };
         LlmClient {