core: clang-format pass against the landed root .clang-format

Pure formatting, no behaviour change. PKG landed .clang-format (Google
base, 4-space indent, 100 cols); this brings util/ and the test harness
into conformance so `clang-format --dry-run -Werror` is clean. Build and
all six test binaries unchanged and green.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HPPSGhiArbvQgwC2DNiURS

core/src/util/error.cpp

@@ -6,34 +6,62 @@ namespace vdm {
 
 std::string_view error_name(Error e) noexcept {
     switch (e) {
-        case Error::ok:                       return "ok";
-        case Error::canceled:                 return "canceled";
-        case Error::resolve_failed:           return "resolve_failed";
-        case Error::connect_failed:           return "connect_failed";
-        case Error::tls_failed:               return "tls_failed";
-        case Error::connection_reset:         return "connection_reset";
-        case Error::timeout:                  return "timeout";
-        case Error::too_many_redirects:       return "too_many_redirects";
-        case Error::http_client_error:        return "http_client_error";
-        case Error::http_server_error:        return "http_server_error";
-        case Error::auth_required:            return "auth_required";
-        case Error::forbidden:                return "forbidden";
-        case Error::not_found:                return "not_found";
-        case Error::range_not_satisfiable:    return "range_not_satisfiable";
-        case Error::gone:                     return "gone";
-        case Error::server_file_changed:      return "server_file_changed";
-        case Error::content_length_mismatch:  return "content_length_mismatch";
-        case Error::checksum_mismatch:        return "checksum_mismatch";
-        case Error::disk_full:                return "disk_full";
-        case Error::io_error:                 return "io_error";
-        case Error::path_rejected:            return "path_rejected";
-        case Error::permission_denied:        return "permission_denied";
-        case Error::meta_corrupt:             return "meta_corrupt";
-        case Error::meta_version_unsupported: return "meta_version_unsupported";
-        case Error::probe_failed:             return "probe_failed";
-        case Error::unsupported_url_scheme:   return "unsupported_url_scheme";
-        case Error::max_retries_exhausted:    return "max_retries_exhausted";
-        case Error::internal:                 return "internal";
+        case Error::ok:
+            return "ok";
+        case Error::canceled:
+            return "canceled";
+        case Error::resolve_failed:
+            return "resolve_failed";
+        case Error::connect_failed:
+            return "connect_failed";
+        case Error::tls_failed:
+            return "tls_failed";
+        case Error::connection_reset:
+            return "connection_reset";
+        case Error::timeout:
+            return "timeout";
+        case Error::too_many_redirects:
+            return "too_many_redirects";
+        case Error::http_client_error:
+            return "http_client_error";
+        case Error::http_server_error:
+            return "http_server_error";
+        case Error::auth_required:
+            return "auth_required";
+        case Error::forbidden:
+            return "forbidden";
+        case Error::not_found:
+            return "not_found";
+        case Error::range_not_satisfiable:
+            return "range_not_satisfiable";
+        case Error::gone:
+            return "gone";
+        case Error::server_file_changed:
+            return "server_file_changed";
+        case Error::content_length_mismatch:
+            return "content_length_mismatch";
+        case Error::checksum_mismatch:
+            return "checksum_mismatch";
+        case Error::disk_full:
+            return "disk_full";
+        case Error::io_error:
+            return "io_error";
+        case Error::path_rejected:
+            return "path_rejected";
+        case Error::permission_denied:
+            return "permission_denied";
+        case Error::meta_corrupt:
+            return "meta_corrupt";
+        case Error::meta_version_unsupported:
+            return "meta_version_unsupported";
+        case Error::probe_failed:
+            return "probe_failed";
+        case Error::unsupported_url_scheme:
+            return "unsupported_url_scheme";
+        case Error::max_retries_exhausted:
+            return "max_retries_exhausted";
+        case Error::internal:
+            return "internal";
     }
     return "unknown";
 }
@@ -48,7 +76,7 @@ bool is_retryable(Error e) noexcept {
         case Error::connection_reset:
         case Error::timeout:
         case Error::http_server_error:
-        case Error::range_not_satisfiable:      // stale metadata → re-probe then retry
+        case Error::range_not_satisfiable:  // stale metadata → re-probe then retry
         case Error::content_length_mismatch:
             return true;
 
@@ -58,11 +86,11 @@ bool is_retryable(Error e) noexcept {
         case Error::tls_failed:
         case Error::too_many_redirects:
         case Error::http_client_error:
-        case Error::auth_required:              // resolved by credentials, not a retry
+        case Error::auth_required:  // resolved by credentials, not a retry
         case Error::forbidden:
         case Error::not_found:
         case Error::gone:
-        case Error::server_file_changed:        // needs a user decision
+        case Error::server_file_changed:  // needs a user decision
         case Error::checksum_mismatch:
         case Error::disk_full:
         case Error::io_error:

core/src/util/log.cpp

@@ -17,11 +17,16 @@ std::shared_ptr<LogSink> g_sink;
 
 std::string_view log_level_name(LogLevel l) noexcept {
     switch (l) {
-        case LogLevel::trace: return "trace";
-        case LogLevel::debug: return "debug";
-        case LogLevel::info:  return "info";
-        case LogLevel::warn:  return "warn";
-        case LogLevel::error: return "error";
+        case LogLevel::trace:
+            return "trace";
+        case LogLevel::debug:
+            return "debug";
+        case LogLevel::info:
+            return "info";
+        case LogLevel::warn:
+            return "warn";
+        case LogLevel::error:
+            return "error";
     }
     return "?";
 }