abstract the claude module out of the signal-gateway and put interface and ipml in their own crates

signal-gateway-app-code/Cargo.toml

@@ -7,7 +7,7 @@ edition.workspace = true
 workspace = true
 
 [dependencies]
-signal-gateway = { path = "../signal-gateway", default-features = false }
+signal-gateway-assistant = { workspace = true }
 
 async-trait = { workspace = true }
 flate2 = { workspace = true }

signal-gateway-app-code/src/lib.rs

@@ -7,7 +7,7 @@ use async_trait::async_trait;
 use flate2::read::GzDecoder;
 use regex::Regex;
 use serde::Deserialize;
-use signal_gateway::claude::{Tool, ToolExecutor, ToolResult};
+use signal_gateway_assistant::{Tool, ToolExecutor, ToolResult};
 use std::{
     collections::HashMap, error::Error, fmt::Write, future::Future, io::Read, path::PathBuf,
     pin::Pin, str::FromStr, sync::Arc,