feat(config): load settings from env via pydantic-settings

src/journal_bot/config.py

@@ -0,0 +1,37 @@
+from pathlib import Path
+from pydantic import Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Config(BaseSettings):
+    model_config = SettingsConfigDict(env_file=".env", extra="ignore")
+
+    telegram_token: str = Field(..., alias="TELEGRAM_TOKEN")
+    allowed_user_id: int = Field(..., alias="ALLOWED_USER_ID")
+    vault_path: Path = Field(..., alias="VAULT_PATH")
+    journal_bot_home: Path = Field(..., alias="JOURNAL_BOT_HOME")
+
+    lmstudio_url: str = Field("http://localhost:1234/v1", alias="LMSTUDIO_URL")
+    lmstudio_model: str = Field("qwen/qwen3-vl-8b", alias="LMSTUDIO_MODEL")
+    whisper_model: str = Field("large-v3", alias="WHISPER_MODEL")
+    whisper_device: str = Field("cpu", alias="WHISPER_DEVICE")
+
+    @property
+    def queue_dir(self) -> Path:
+        return self.journal_bot_home / "queue"
+
+    @property
+    def state_dir(self) -> Path:
+        return self.journal_bot_home / "state"
+
+    @property
+    def logs_dir(self) -> Path:
+        return self.journal_bot_home / "logs"
+
+    @property
+    def attachments_dir(self) -> Path:
+        return self.vault_path / "07 Anhänge"
+
+    @property
+    def daily_notes_dir(self) -> Path:
+        return self.vault_path / "05 Daily Notes"

tests/test_config.py

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+import os
+from pathlib import Path
+import pytest
+from journal_bot.config import Config
+
+
+def test_config_loads_from_env(monkeypatch, tmp_path):
+    monkeypatch.setenv("TELEGRAM_TOKEN", "abc")
+    monkeypatch.setenv("ALLOWED_USER_ID", "42")
+    monkeypatch.setenv("VAULT_PATH", str(tmp_path))
+    monkeypatch.setenv("JOURNAL_BOT_HOME", str(tmp_path / "runtime"))
+
+    cfg = Config()
+
+    assert cfg.telegram_token == "abc"
+    assert cfg.allowed_user_id == 42
+    assert cfg.vault_path == tmp_path
+    assert cfg.queue_dir == tmp_path / "runtime" / "queue"
+    assert cfg.state_dir == tmp_path / "runtime" / "state"
+    assert cfg.logs_dir == tmp_path / "runtime" / "logs"
+
+
+def test_config_missing_required_fails(monkeypatch):
+    for var in ["TELEGRAM_TOKEN", "ALLOWED_USER_ID", "VAULT_PATH"]:
+        monkeypatch.delenv(var, raising=False)
+    with pytest.raises(Exception):
+        Config()