README: mark the SIMtrace2 USB prerequisites as conditional
The prerequisites read as if PyUSB, libusb and SIMtrace2 hardware were needed generally. They are only for `--capture direct` (and the bundled `simtrace2-pysniff` utility): the analyser starts and captures GSMTAP with just Python 3.9+ - verified in a fresh venv without PyUSB, where the server served the PWA and a GSMTAP ATR+APDU landed in the session (2 messages). Both READMEs split the list into "Required" (Python 3.9+) and "Only for capturing from Osmocom SIMtrace2 hardware", and state that GSMTAP capture (the source may even run on another machine), --capture disabled and PCAP imports need none of it. No code change; 557 Python + 80 Node tests.
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@@ -15,17 +15,24 @@ GSMTAP into this analyser.
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## Prerequisites
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- **Python 3.9+**
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- **PyUSB** — `pip install pyusb` (needed only for capture from SIMtrace2
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hardware; GSMTAP/UDP capture and PCAP import work without it)
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**Required**
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- **Python 3.9+** — GSMTAP capture, PCAP import and browsing use only the
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standard library.
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**Only for capturing from Osmocom SIMtrace2 hardware** (`--capture direct`, and
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the bundled `simtrace2-pysniff` capture utility):
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- **PyUSB** — `pip install pyusb`
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- **libusb** — system library, present by default on Linux; on Windows the
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SIMtrace2 driver must be swapped (see [USB Device Access](#usb-device-access))
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- **SIMtrace2 hardware** running firmware in *trace* mode (only for direct
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capture; VID `1d50`, PID `60e3`, USB class `ff`, subclass `01`). For
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building and flashing trace firmware, see the
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- **SIMtrace2 hardware** running firmware in *trace* mode (VID `1d50`, PID
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`60e3`, USB class `ff`, subclass `01`); building and flashing trace firmware
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is described in the
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[upstream SIMtrace2 project](https://gitea.osmocom.org/sim-card/simtrace2).
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No other dependencies. PCAP, GSMTAP, and hex dump output use only Python stdlib.
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The analyser needs none of this for `--capture gsmtap` (the GSMTAP source may
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even run on another machine), `--capture disabled`, or PCAP imports.
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## Quick start
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+15
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@@ -15,19 +15,25 @@ SIM/UICC из UDP-потока GSMTAP (или импортирует файлы
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## Требования
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- **Python 3.9+**
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- **PyUSB** — `pip install pyusb` (нужен только для захвата с оборудования
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SIMtrace2; захват GSMTAP/UDP и импорт PCAP работают без него)
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**Обязательно**
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- **Python 3.9+** — для захвата GSMTAP, импорта PCAP и просмотра достаточно
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стандартной библиотеки.
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**Только для захвата с оборудования Osmocom SIMtrace2** (`--capture direct` и
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встроенная утилита `simtrace2-pysniff`):
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- **PyUSB** — `pip install pyusb`
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- **libusb** — системная библиотека, обычно уже есть в Linux; в Windows
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нужно заменить драйвер SIMtrace2
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(см. [Доступ к USB-устройству](#доступ-к-usb-устройству))
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- **Оборудование SIMtrace2** с прошивкой в режиме *trace* (только для
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прямого захвата; VID `1d50`, PID `60e3`, USB class `ff`, subclass `01`).
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О сборке и прошивке trace-прошивки см.
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[проект SIMtrace2](https://gitea.osmocom.org/sim-card/simtrace2).
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- **Оборудование SIMtrace2** с прошивкой в режиме *trace* (VID `1d50`, PID
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`60e3`, USB class `ff`, subclass `01`); сборка и прошивка trace-прошивки
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описаны в
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[проекте SIMtrace2](https://gitea.osmocom.org/sim-card/simtrace2).
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Других зависимостей нет. Вывод PCAP, GSMTAP и hex dump использует только
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стандартную библиотеку Python.
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Для `--capture gsmtap` (источник GSMTAP может быть даже на другой машине),
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`--capture disabled` и импорта PCAP анализатору ничего из этого не нужно.
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## Быстрый старт
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