build: 注入 patched CPA 版本信息

patch/README.md

@@ -84,7 +84,15 @@ git -C .externals/CLIProxyAPI apply ../../patch/cli-proxy-api-request-lifecycle-
 cd .externals/CLIProxyAPI
 gofmt -w internal/pluginhost sdk/api/handlers sdk/cliproxy/usage sdk/pluginabi sdk/pluginapi
 go test -race ./internal/pluginhost ./sdk/api/handlers ./sdk/cliproxy/usage -count=1
-CGO_ENABLED=1 go build -o test-output ./cmd/server
+version=v7.2.133-dev
+commit=7efe0a7c
+build_date="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
+CGO_ENABLED=1 go build -buildvcs=false \
+  -ldflags="-s -w -X main.Version=$version -X main.Commit=$commit -X main.BuildDate=$build_date" \
+  -o test-output ./cmd/server
+help_output="$(./test-output -h 2>&1)"
+first_line="${help_output%%$'\n'*}"
+test "$first_line" = "CLIProxyAPI Version: $version, Commit: $commit, BuiltAt: $build_date"
 rm test-output
 ```