fix: add ccg lint to pre-commit hook pipeline

Hook now runs: ccg build . && ccg docs && ccg lint

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: tae2089

internal/cli/hooks.go

@@ -14,7 +14,7 @@ const hookGuardEnd = "# --- ccg hook end ---"
 
 const hookBody = `
 ` + hookGuardBegin + `
-ccg build . && ccg docs
+ccg build . && ccg docs && ccg lint
 ` + hookGuardEnd + `
 `
 

internal/cli/hooks_test.go

@@ -25,7 +25,7 @@ func TestHooksInstall_CreatesPreCommitHook(t *testing.T) {
 	}
 
 	hook := string(content)
-	for _, want := range []string{"#!/bin/sh", "ccg build", "ccg docs"} {
+	for _, want := range []string{"#!/bin/sh", "ccg build", "ccg docs", "ccg lint"} {
 		if !strings.Contains(hook, want) {
 			t.Errorf("expected %q in hook, got:\n%s", want, hook)
 		}