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

src/app/runtime/actions/mod.rs

@@ -886,6 +886,11 @@ fn archive_message(db: &Option<std::sync::Arc<std::sync::Mutex<rusqlite::Connect
     }
 }
 
+/// Maximum number of LLM call + tool-execution iterations per single
+/// agent turn before bailing. Prevents runaway token consumption when
+/// the agent gets stuck in a loop (e.g. an unachievable todo item).
+const MAX_TURN_STEPS: usize = 10000;
+
 /// Execute one full agent turn: stream the conversation to the LLM,
 /// handle tool calls, and loop until the LLM produces a non-tool response
 /// or runs out of unfinished todo items.
@@ -932,7 +937,17 @@ fn run_agent_turn(
         msgs.insert(0, sys);
     }
 
+    let mut turn_step = 0usize;
+
     loop {
+        turn_step += 1;
+        if turn_step > MAX_TURN_STEPS {
+            anyhow::bail!(
+                "turn exceeded maximum steps ({}) — possible runaway loop. \
+                 aborting to prevent excessive token usage",
+                MAX_TURN_STEPS,
+            );
+        }
         let total_chars: usize = msgs.iter()
             .filter_map(|m| m.content.as_deref())
             .map(|c| c.len())
@@ -1423,7 +1438,7 @@ fn spawn_api_connectivity_check(state: &AppStateRest) {
     let turn_events = state.turn_events.clone();
 
     std::thread::spawn(move || {
-        let url = format!("{}/models", base_url.trim_end_matches('/'));
+        let url = format!("{}/chat/completions", base_url.trim_end_matches('/'));
         let connected = match reqwest::blocking::Client::builder()
             .timeout(std::time::Duration::from_secs(5))
             .connect_timeout(std::time::Duration::from_secs(3))