LLM支持优化

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "quicommit"
-version = "0.2.1"
+version = "0.2.3"
 edition = "2024"
 authors = ["Sidney Zhang <zly@lyzhang.me>"]
 description = "A powerful Git assistant tool with AI-powered commit/tag/changelog generation(alpha version)"
@@ -33,7 +33,7 @@ git2 = "0.20.3"
 which = "6.0"
 
 # HTTP client for LLM APIs
-reqwest = { version = "0.12", features = ["json", "rustls-tls"], default-features = false }
+reqwest = { version = "0.12", features = ["json", "rustls-tls", "stream"], default-features = false }
 tokio = { version = "1.35", features = ["full"] }
 
 # Error handling
@@ -57,6 +57,7 @@ sha2 = "0.10"
 hex = "0.4"
 textwrap = "0.16"
 async-trait = "0.1"
+futures-util = "0.3"
 serde_json = "1.0"
 atty = "0.2"