Clean up warnings: StreamToken pub, dead oneshot code, SkipIndex

Made StreamToken pub (was pub(crate), needed by context.rs).
Removed dead API_CLIENT, get_client, sampling/priority fields
from oneshot. Suppressed pre-existing SkipIndex warning in learn.rs.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>

src/agent/api/mod.rs

@@ -44,7 +44,7 @@ pub(crate) struct SamplingParams {
 // ─────────────────────────────────────────────────────────────
 
 /// One token from the streaming completions API.
-pub(crate) enum StreamToken {
+pub enum StreamToken {
     Token { text: String, id: u32 },
     Done { usage: Option<Usage> },
     Error(String),

src/agent/mod.rs

@@ -318,7 +318,7 @@ impl Agent {
         loop {
             let _thinking = start_activity(&agent, "thinking...").await;
 
-            let (mut rx, _stream_guard) = {
+            let (rx, _stream_guard) = {
                 let prompt_tokens = agent.assemble_prompt_tokens().await;
                 let st = agent.state.lock().await;
                 agent.client.stream_completion(

src/agent/oneshot.rs

@@ -12,29 +12,11 @@ use crate::subconscious::{defs, prompts};
 
 use std::fs;
 use std::path::PathBuf;
-use std::sync::OnceLock;
 
-use super::api::ApiClient;
 use super::context::AstNode;
 use super::tools::{self as agent_tools};
 use super::Agent;
 
-// ---------------------------------------------------------------------------
-// API client — shared across oneshot agent runs
-// ---------------------------------------------------------------------------
-
-static API_CLIENT: OnceLock<ApiClient> = OnceLock::new();
-
-fn get_client() -> Result<&'static ApiClient, String> {
-    Ok(API_CLIENT.get_or_init(|| {
-        let config = crate::config::get();
-        let base_url = config.api_base_url.as_deref().unwrap_or("");
-        let api_key = config.api_key.as_deref().unwrap_or("");
-        let model = config.api_model.as_deref().unwrap_or("qwen-2.5-27b");
-        ApiClient::new(base_url, api_key, model)
-    }))
-}
-
 // ---------------------------------------------------------------------------
 // AutoAgent — multi-step autonomous agent
 // ---------------------------------------------------------------------------
@@ -52,9 +34,6 @@ pub struct AutoAgent {
     pub name: String,
     pub tools: Vec<agent_tools::Tool>,
     pub steps: Vec<AutoStep>,
-    sampling: super::api::SamplingParams,
-    priority: i32,
-    /// Named outputs from the agent's output() tool calls.
     /// Collected per-run, read by Mind after completion.
     pub outputs: std::collections::BTreeMap<String, String>,
     // Observable status
@@ -122,15 +101,11 @@ impl AutoAgent {
         name: String,
         tools: Vec<agent_tools::Tool>,
         steps: Vec<AutoStep>,
-        temperature: f32,
-        priority: i32,
+        _temperature: f32,
+        _priority: i32,
     ) -> Self {
         Self {
             name, tools, steps,
-            sampling: super::api::SamplingParams {
-                temperature, top_p: 0.95, top_k: 20,
-            },
-            priority,
             outputs: std::collections::BTreeMap::new(),
             current_phase: String::new(),
             turn: 0,