refactor: remove Responses API, consolidate to Chat Completions (#272)

* fix: strip reasoning from LLM responses and persist assistant messages reliably

- Filter out `type: "reasoning"` output items from NEAR AI Responses API
  parsing so chain-of-thought never reaches the UI (nearai.rs)
- Rewrite clean_response with regex-based tag stripping that is
  code-aware (preserves tags inside fenced blocks and inline backticks),
  supports 9+ tag names (think, thought, reasoning, reflection, etc.),
  handles <final> extraction, pipe-delimited tags, and case/whitespace
  tolerance (reasoning.rs)
- Add Reasoning::complete() helper so all non-agentic LLM call sites
  (summarize, suggest, heartbeat, compaction) get automatic response
  cleaning; thread SafetyLayer through to those callers
- Change persist_turn from fire-and-forget tokio::spawn to awaited async
  so both user and assistant messages are written before returning,
  preventing data loss on shutdown/restart
- Pass input_count through seed_response_chain so response chaining
  delta calculation is accurate after thread hydration on restart
- Make NearAiResponse.usage optional and preserve response_id in alt
  response path for chaining continuity
- Persist session token to DB during onboarding wizard so runtime
  loads it without legacy-key fallback; suppress spurious warning on
  fresh installs
- Fix dev tool double-registration when builder already registers them
- Load dotenv/ironclaw env for doctor and status subcommands
- Reduce startup log noise (demote info→debug for skills, remove
  redundant info lines)

Co-Authored-By: Claude Opus 4.6 <[email protected]>

* Nudge to not loop over tools continuesly

* refactor: remove Responses API, consolidate NEAR AI to Chat Completions only

The Responses API provider (nearai.rs, 1278 lines) added significant complexity
(response chaining state machine, delta message calculation, previous_response_id
persistence) for marginal benefit. This consolidates to the Chat Completions API
only, upgrading NearAiChatProvider with dual auth (session token + API key) and
401 retry for session token renewal.

- Delete src/llm/nearai.rs (Responses API provider)
- Upgrade nearai_chat.rs with SessionManager, dual auth, flexible list_models
- Remove response_id from CompletionResponse and ToolCompletionResponse
- Remove seed_response_chain/get_response_chain_id from LlmProvider trait
- Remove response chain persistence from agent (thread_ops, session)
- Remove NearAiApiMode enum and NEARAI_API_MODE config
- Clean up all wrapper providers (retry, circuit_breaker, failover, cache)
- Update documentation (CLAUDE.md, .env.example)

Co-Authored-By: Claude Opus 4.6 <[email protected]>

* feat: runtime log level control via gateway UI and URL parameter

Add server-side log level switching using tracing_subscriber::reload::Layer
so the EnvFilter can be swapped at runtime without restarting. Expose via
GET/PUT /api/logs/level endpoints, a "Server: LEVEL" dropdown in the logs
toolbar, and a ?log_level=debug URL parameter for one-click activation.

Also applies cargo fmt to pre-existing files (llm/, tests/).

Co-Authored-By: Claude Opus 4.6 <[email protected]>

---------

Co-authored-by: Claude Opus 4.6 <[email protected]>

tests/heartbeat_integration.rs

@@ -15,6 +15,7 @@ use ironclaw::{
     config::Config,
     history::Store,
     llm::{SessionConfig, create_llm_provider, create_session_manager},
+    safety::SafetyLayer,
     workspace::Workspace,
 };
 
@@ -96,7 +97,8 @@ async fn test_heartbeat_end_to_end() {
 
     let hb_config = ironclaw::agent::HeartbeatConfig::default();
     let hygiene_config = ironclaw::workspace::hygiene::HygieneConfig::default();
-    let runner = HeartbeatRunner::new(hb_config, hygiene_config, workspace, llm);
+    let safety = Arc::new(SafetyLayer::new(&config.safety));
+    let runner = HeartbeatRunner::new(hb_config, hygiene_config, workspace, llm, safety);
 
     let result = runner.check_heartbeat().await;
 

tests/openai_compat_integration.rs

@@ -71,7 +71,6 @@ impl LlmProvider for MockLlmProvider {
             input_tokens: 10,
             output_tokens: 5,
             finish_reason: FinishReason::Stop,
-            response_id: None,
         })
     }
 
@@ -97,7 +96,6 @@ impl LlmProvider for MockLlmProvider {
                 input_tokens: 15,
                 output_tokens: 8,
                 finish_reason: FinishReason::ToolUse,
-                response_id: None,
             })
         } else {
             Ok(ToolCompletionResponse {
@@ -106,7 +104,6 @@ impl LlmProvider for MockLlmProvider {
                 input_tokens: 10,
                 output_tokens: 4,
                 finish_reason: FinishReason::Stop,
-                response_id: None,
             })
         }
     }
@@ -145,7 +142,6 @@ impl LlmProvider for FixedModelProvider {
             input_tokens: 10,
             output_tokens: 5,
             finish_reason: FinishReason::Stop,
-            response_id: None,
         })
     }
 
@@ -159,7 +155,6 @@ impl LlmProvider for FixedModelProvider {
             input_tokens: 10,
             output_tokens: 5,
             finish_reason: FinishReason::Stop,
-            response_id: None,
         })
     }
 
@@ -190,6 +185,7 @@ async fn start_test_server_with_provider(
         workspace: None,
         session_manager: None,
         log_broadcaster: None,
+        log_level_handle: None,
         extension_manager: None,
         tool_registry: None,
         store: None,
@@ -674,6 +670,7 @@ async fn test_no_llm_provider_returns_503() {
         workspace: None,
         session_manager: None,
         log_broadcaster: None,
+        log_level_handle: None,
         extension_manager: None,
         tool_registry: None,
         store: None,

tests/ws_gateway_integration.rs

@@ -43,6 +43,7 @@ async fn start_test_server() -> (
         workspace: None,
         session_manager: None,
         log_broadcaster: None,
+        log_level_handle: None,
         extension_manager: None,
         tool_registry: None,
         store: None,