Refactor IPC and DTO structures; remove unused code and streamline message handling

- Removed unused structs and methods from `response.rs`, `usage.rs`, and `client.rs`.
- Simplified `Connection` handling in `conn.rs` to only support Unix sockets.
- Updated `IpcServer` to exclusively use Unix sockets and removed TCP handling.
- Cleaned up `editlog.rs` by removing loading and recent entry methods.
- Refactored `memory.rs` to eliminate unused functions related to lesson promotion and retrospective creation.
- Enhanced `search.rs` to support multiple search providers and improved error handling.
- Updated chat view logic to simplify message display and improve user experience.
- Removed deprecated modules and constants from various files to streamline the codebase.

src/tool/mod.rs

@@ -13,7 +13,6 @@ pub mod plan;
 pub mod search;
 pub mod seqthink;
 pub mod shell;
-pub mod shell_filter;
 pub mod utility;
 pub mod workflow;
 
@@ -36,7 +35,7 @@ pub struct ToolCtx {
     pub workspaces: Vec<PathBuf>,
     pub session_dir: PathBuf,
     pub memory_dir: PathBuf,
-    pub download_dir: PathBuf,
+    pub _download_dir: PathBuf,
     pub worktrees_dir: PathBuf,
     pub dir_cache: std::sync::Arc<tokio::sync::RwLock<super::app::state::misc::DirCache>>,
     pub internet_mode: super::model::settings::InternetMode,
@@ -89,20 +88,14 @@ impl Default for ToolCtxBuilder {
 }
 
 impl ToolCtxBuilder {
-    pub fn workspaces(mut self, v: Vec<PathBuf>) -> Self { self.workspaces = v; self }
     pub fn session_dir(mut self, v: PathBuf) -> Self { self.session_dir = v; self }
-    pub fn memory_dir(mut self, v: PathBuf) -> Self { self.memory_dir = v; self }
-    pub fn download_dir(mut self, v: PathBuf) -> Self { self.download_dir = v; self }
-    pub fn worktrees_dir(mut self, v: PathBuf) -> Self { self.worktrees_dir = v; self }
-    pub fn internet_mode(mut self, v: super::model::settings::InternetMode) -> Self { self.internet_mode = v; self }
     pub fn origin(mut self, v: crate::app::state::types::Origin) -> Self { self.origin = v; self }
-    pub fn graduated_checks(mut self, v: Vec<GraduatedCheck>) -> Self { self.graduated_checks = v; self }
     pub fn build(self) -> ToolCtx {
         ToolCtx {
             workspaces: self.workspaces,
             session_dir: self.session_dir,
             memory_dir: self.memory_dir,
-            download_dir: self.download_dir,
+            _download_dir: self.download_dir,
             worktrees_dir: self.worktrees_dir,
             dir_cache: self.dir_cache,
             internet_mode: self.internet_mode,
@@ -130,6 +123,7 @@ pub fn all_tools() -> Vec<Box<dyn Tool>> {
         Box::new(super::tool::plan::PlanEnter),
         Box::new(super::tool::plan::PlanReady),
         Box::new(super::tool::workflow::WorkflowRun),
+        Box::new(super::tool::workflow::NoteFinding),
         Box::new(super::tool::internet::fetch::Fetch),
         Box::new(super::tool::internet::download::Download),
         Box::new(super::tool::internet::search::Search),
@@ -162,11 +156,6 @@ pub fn tool_defs(tools: &[Box<dyn Tool>]) -> Vec<crate::dto::provider::request::
         .collect()
 }
 
-pub const DEFERRED_TOOLS: &[&str] = &[
-    "read", "write", "edit", "bash", "grep", "glob",
-    "git_operator", "git_worktree", "git_cred",
-];
-
 pub fn resolve_path(workspaces: &[PathBuf], rel: &str) -> Result<PathBuf> {
     let _parts: Vec<&str> = rel.splitn(2, '/').collect();
     let (ws_idx, path) = if rel.starts_with('[') {