fix: reduce keywords to 5 for crates.io compatibility

Author: vinhnx

Cargo.toml

@@ -8,16 +8,7 @@ license = "MIT"
 readme = "README.md"
 homepage = "https://github.com/vinhnx/vtcode"
 repository = "https://github.com/vinhnx/vtcode"
-keywords = [
-    "ai",
-    "coding",
-    "agent",
-    "llm",
-    "cli",
-    "terminal",
-    "rust",
-    "automation",
-]
+keywords = ["ai", "coding", "agent", "llm", "cli"]
 categories = ["command-line-utilities", "development-tools", "api-bindings"]
 exclude = [
     "target/",