feat: Windows-Packaging mit PyInstaller (ZIP ohne Python-Installation)

Fügt Build-Infrastruktur hinzu, mit der whisper-local als
selbständiges Windows-ZIP-Paket ohne Python-Installation
bereitgestellt werden kann.

- whisper_local.spec: PyInstaller onedir-Konfiguration für Windows 64-bit
  mit allen nativen DLLs (ctranslate2/CUDA, pywin32, PortAudio,
  onnxruntime, av/FFmpeg) und Hidden Imports für platform-bedingte Backends
- build.ps1: Build-Skript das versioniertes ZIP erstellt (.\build.ps1 -Clean)
- transcriber.py: portabler Modell-Cache neben der EXE im gebündelten Modus
- pyproject.toml: pyinstaller>=6.0 als [build]-Abhängigkeitsgruppe, v1.0.0

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

whisper_local.spec

@@ -0,0 +1,170 @@
+# whisper_local.spec
+# PyInstaller-Build-Konfiguration für whisper-local (Windows 64-bit, onedir)
+#
+# Ausführen: uv run pyinstaller whisper_local.spec --noconfirm
+# Oder via:  .\build.ps1
+
+import sys
+from pathlib import Path
+from PyInstaller.utils.hooks import collect_data_files
+
+block_cipher = None
+
+SP = Path(".venv/Lib/site-packages")
+
+# ── Binaries ──────────────────────────────────────────────────────────────────
+# ctranslate2: Haupt-DLL, CUDA (cudnn) und Intel OpenMP
+# DLLs landen in ctranslate2/, damit ctranslate2's os.add_dll_directory() greift
+binaries_list = [
+    (str(SP / "ctranslate2/ctranslate2.dll"),       "ctranslate2"),
+    (str(SP / "ctranslate2/cudnn64_9.dll"),          "ctranslate2"),
+    (str(SP / "ctranslate2/libiomp5md.dll"),         "ctranslate2"),
+
+    # pywin32: COM- und WinTypes-DLLs müssen neben der EXE liegen
+    (str(SP / "pywin32_system32/pythoncom313.dll"),  "."),
+    (str(SP / "pywin32_system32/pywintypes313.dll"), "."),
+
+    # sounddevice / PortAudio
+    (str(SP / "_sounddevice_data/portaudio-binaries/libportaudio64bit.dll"),
+     "_sounddevice_data/portaudio-binaries"),
+    (str(SP / "_sounddevice_data/portaudio-binaries/libportaudio64bit-asio.dll"),
+     "_sounddevice_data/portaudio-binaries"),
+
+    # onnxruntime (für Silero VAD in faster-whisper)
+    (str(SP / "onnxruntime/capi/onnxruntime.dll"),
+     "onnxruntime/capi"),
+    (str(SP / "onnxruntime/capi/onnxruntime_providers_shared.dll"),
+     "onnxruntime/capi"),
+]
+
+# av/FFmpeg: DLL-Namen enthalten Hashes — per Glob gesammelt
+av_libs_dir = SP / "av.libs"
+binaries_list += [(str(dll), "av.libs") for dll in av_libs_dir.glob("*.dll")]
+
+# ── Datas ─────────────────────────────────────────────────────────────────────
+datas_list = [
+    # Silero VAD ONNX-Modell (benötigt von faster-whisper)
+    (str(SP / "faster_whisper/assets/silero_vad_v6.onnx"),
+     "faster_whisper/assets"),
+
+    # sv_ttk Theme (TCL-Skripte + PNG-Spritesheets)
+    (str(SP / "sv_ttk/sv.tcl"),    "sv_ttk"),
+    (str(SP / "sv_ttk/theme"),     "sv_ttk/theme"),
+
+    # Beispiel-Konfiguration als Referenz
+    ("config.example.toml", "."),
+]
+
+# certifi CA-Bundle für HTTPS (huggingface_hub Modell-Download)
+datas_list += collect_data_files("certifi")
+
+# ── Hidden Imports ────────────────────────────────────────────────────────────
+# Alle Module hinter sys.platform-Guards oder lazy imports (importlib, __import__)
+hidden_imports_list = [
+    # Eigene Windows-Backends (hinter sys.platform == "win32" Guards)
+    "whisper_local.hotkey._pynput",
+    "whisper_local.inserter._win32",
+    "whisper_local.tray._tray",
+    "whisper_local.tray._icon",
+    "whisper_local.tray._settings",
+    "whisper_local.tray._theme",
+
+    # pynput: Backend wird per importlib dynamisch gewählt
+    "pynput.keyboard._win32",
+    "pynput.mouse._win32",
+    "pynput._util",
+    "pynput._util.win32",
+    "pynput._util.win32_vks",
+
+    # pywin32
+    "win32api",
+    "win32con",
+    "win32gui",
+    "win32clipboard",
+    "pywintypes",
+
+    # pystray Windows-Backend + Utility-Unterpaket (relative imports)
+    "pystray._win32",
+    "pystray._util",
+    "pystray._util.win32",
+
+    # tkinter: lazy import in tray/_settings.py
+    "tkinter",
+    "tkinter.ttk",
+
+    # sv_ttk und darkdetect
+    "sv_ttk",
+    "darkdetect",
+
+    # onnxruntime Inference Collection
+    "onnxruntime.capi.onnxruntime_inference_collection",
+
+    # huggingface_hub für Modell-Download zur Laufzeit
+    "huggingface_hub",
+    "huggingface_hub.file_download",
+    "huggingface_hub.utils",
+]
+
+# ── Excludes ──────────────────────────────────────────────────────────────────
+excludes_list = [
+    # Linux-only (nicht installiert auf Windows)
+    "evdev",
+    "whisper_local.hotkey._evdev",
+    "whisper_local.inserter._wayland",
+    # Build- und Test-Infrastruktur
+    "pytest",
+    "pytest_asyncio",
+    "hatchling",
+    # Nicht benötigt im gebündelten Binary
+    "unittest",
+    "doctest",
+    "pdb",
+]
+
+# ── Analysis ──────────────────────────────────────────────────────────────────
+a = Analysis(
+    ["whisper_local/__main__.py"],
+    pathex=["."],
+    binaries=binaries_list,
+    datas=datas_list,
+    hiddenimports=hidden_imports_list,
+    hookspath=[],
+    hooksconfig={},
+    runtime_hooks=[],
+    excludes=excludes_list,
+    win_no_prefer_redirects=False,
+    win_private_assemblies=False,
+    cipher=block_cipher,
+    noarchive=False,
+)
+
+pyz = PYZ(a.pure, a.zipped_data, cipher=block_cipher)
+
+exe = EXE(
+    pyz,
+    a.scripts,
+    [],
+    exclude_binaries=True,           # onedir-Modus: DLLs bleiben separat
+    name="whisper-local",
+    debug=False,
+    bootloader_ignore_signals=False,
+    strip=False,
+    upx=False,                       # UPX mit CUDA-DLLs deaktiviert
+    console=False,                   # kein Konsolenfenster (Tray-App)
+    disable_windowed_traceback=False,
+    argv_emulation=False,
+    target_arch=None,
+    codesign_identity=None,
+    entitlements_file=None,
+)
+
+coll = COLLECT(
+    exe,
+    a.binaries,
+    a.zipfiles,
+    a.datas,
+    strip=False,
+    upx=False,
+    upx_exclude=[],
+    name="whisper-local",
+)