refactor: reorganize installation commands and add core tool installation

src/cli_tools/install.py

@@ -21,7 +21,6 @@ APT_PACKAGES = [
     "ripgrep",
     "fd-find",
     "btop",
-    "tldr",
 ]
 
 
@@ -177,14 +176,21 @@ def ai_skills():
 
 
 @app.command()
-def bootstrap():
+def core():
-    """Install all base tools."""
+    """Install essential tools."""
     apt_packages()
     docker()
     uv()
-    claude()
     fzf()
     zoxide()
     lazygit()
     eza()
+    helpers()
+
+@app.command()
+def ai_tools():
+    """Install AI tools and configure skills."""
+    claude()
+    copilot()
     ai_skills()
+    ccusage()