feat: update maximum steps and token limits to usize::MAX; add split_spans_into_lines function for improved chat display

src/app/runtime/actions/mod.rs

@@ -9,9 +9,8 @@ use crate::app::state::runtime::TurnEvent;
 use crate::app::state::types::{Origin, Overlay, Toast, ToastKind};
 use crate::dto::chat::message::{ChatMessage, Role};
 
-const MAX_TOOL_ONLY_TURNS: usize = 1000;
-
-const MAX_AGENT_STEPS: usize = 1000;
+const MAX_TOOL_ONLY_TURNS: usize = usize::MAX;
+const MAX_AGENT_STEPS: usize = usize::MAX;
 
 #[derive(Debug, Clone)]
 pub enum Action {

src/app/runtime/shortsend.rs

@@ -1,6 +1,6 @@
 use crate::dto::chat::message::ChatMessage;
 
-const MAX_WIRE_TOKENS: usize = 8000;
+const MAX_WIRE_TOKENS: usize = 2_000_000;
 const MIN_MESSAGES_BEFORE_SHAPE: usize = 20;
 const ENGAGE_HYSTERESIS: usize = 5;
 

src/app/subagent/engine.rs

@@ -5,7 +5,7 @@ use crate::tool::{all_tools, tool_defs, tool_is_risky};
 use super::context::SubagentContext;
 use super::event::SubagentEvent;
 
-pub const MAX_AGENT_STEPS: usize = 25;
+pub const MAX_AGENT_STEPS: usize = usize::MAX;
 
 /// Maps a subagent's allowed tool names to concrete Tool trait objects and
 /// OpenAI-style tool definitions.  When `allowed_tools` is empty every tool is

src/app/workflow/engine.rs

@@ -49,7 +49,7 @@ fn spawn_single_agent(prompt: &str, findings_snapshot: Vec<String>) -> anyhow::R
     use crate::app::subagent::spawn::AgentDefinition;
 
     let def = AgentDefinition::new("workflow-agent".to_string(), "coder".to_string())
-        .with_max_steps(20);
+        .with_max_steps(usize::MAX);
     let mut ctx = build_subagent_context(def);
 
     let findings_section = if findings_snapshot.is_empty() {