fix(firmware-info): используй UTC+3 в именах папок

Переведи только время имени архива в UTC+3, сохрани UTC в метаданных и заголовке. Проверь переход на следующий день и копирование текущей папки.

c/firmware-info/tools/identity.py

@@ -7,7 +7,7 @@ protocol encoding lives here: the generated header contains scalar constants.
 from __future__ import annotations
 
 import argparse
-from datetime import datetime, timezone
+from datetime import datetime, timedelta, timezone
 import hashlib
 import json
 import os
@@ -108,7 +108,7 @@ def verify(image: Path, manifest: Path) -> dict:
 
 
 def build_folder_name(metadata: dict) -> str:
-    """Use the firmware commit and pre-build UTC time, never post-build time."""
+    """Use the firmware commit and pre-build time rendered in UTC+3."""
     source = metadata.get("source") or {}
     dependency = metadata.get("templates") or {}
     commit = source.get("commit")
@@ -128,8 +128,8 @@ def build_folder_name(metadata: dict) -> str:
     stamp = datetime.fromisoformat(stamp_text.replace("Z", "+00:00"))
     if stamp.tzinfo is None:
         raise ValueError("pre-build timestamp must include a timezone")
-    stamp = stamp.astimezone(timezone.utc)
-    return identity + "_" + stamp.strftime("%Y-%m-%d_%H-%M-%S_UTC")
+    stamp = stamp.astimezone(timezone(timedelta(hours=3)))
+    return identity + "_" + stamp.strftime("%Y-%m-%d_%H-%M-%S_UTC+3")
 
 
 def export_build(folder: Path, export: Path, image_name: str) -> Path: