feat(agent): integrate procurement AI agent with Bale bot, real-time draft sync, and git history bundle

ai procurement/app/config.py

@@ -0,0 +1,77 @@
+"""Bot configuration.
+
+All settings can be overridden with environment variables prefixed with
+``PROCUREMENT_BOT_`` (e.g. ``PROCUREMENT_BOT_BOT_TOKEN=...``) or a local
+``.env`` file. Docker/compose passes them in directly (same convention as
+the api service's ``PROCUREMENT_*`` prefix).
+"""
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+class Settings(BaseSettings):
+    model_config = SettingsConfigDict(
+        env_prefix="PROCUREMENT_BOT_",
+        env_file=".env",
+        env_file_encoding="utf-8",
+        extra="ignore",
+    )
+
+    # Bale Bot API — Telegram-compatible clone hosted at tapi.bale.ai.
+    BALE_API_BASE: str = "https://tapi.bale.ai"
+    BOT_TOKEN: str = ""  # from Bale's BotFather
+    POLL_TIMEOUT_SECONDS: int = 25  # getUpdates long-poll window
+    POLL_ERROR_SLEEP_SECONDS: float = 3.0
+
+    # ERP API (in-network service URL inside Docker).
+    API_BASE_URL: str = "http://localhost:8000/api/v1"
+    API_TIMEOUT_SECONDS: float = 30.0
+    # Optional bearer for the day procurement endpoints start enforcing auth.
+    SERVICE_TOKEN: str = ""
+
+    # Frontend URL (for opening Wizard from Bale bot)
+    FRONTEND_URL: str = "http://localhost:8081"
+
+    # OpenAI-compatible AI provider (LLM), e.g. OpenAI / GLM / DeepSeek / OpenRouter.
+    AI_BASE_URL: str = ""  # e.g. https://api.openai.com/v1
+    AI_API_KEY: str = ""
+    LLM_MODEL: str = "gpt-4o-mini"
+    LLM_TIMEOUT_SECONDS: float = 60.0
+
+    # STT provider — any OpenAI-compatible /audio/transcriptions endpoint.
+    # Falls back to the LLM provider when unset. Note: some providers
+    # (e.g. DeepSeek) have no audio API — voice stays disabled gracefully.
+    STT_BASE_URL: str = ""
+    STT_API_KEY: str = ""
+    STT_MODEL: str = "whisper-1"
+    STT_LANGUAGE: str = "fa"
+
+    @property
+    def stt_base_url(self) -> str:
+        return self.STT_BASE_URL or self.AI_BASE_URL
+
+    @property
+    def stt_api_key(self) -> str:
+        return self.STT_API_KEY or self.AI_API_KEY
+
+    # PostgreSQL — same instance/database as the api service.
+    DATABASE_URL: str = "postgresql+asyncpg://postgres:postgres@localhost:5432/procurement"
+
+    # Chats that may use the bot without Casdoor linking (comma separated).
+    ADMIN_CHAT_IDS: str = ""
+
+    # Drafts older than this are marked expired by the sweeper loop.
+    DRAFT_TTL_HOURS: int = 24
+
+    LOG_LEVEL: str = "INFO"
+
+    @property
+    def admin_chat_ids(self) -> set[int]:
+        out: set[int] = set()
+        for part in self.ADMIN_CHAT_IDS.replace(";", ",").split(","):
+            part = part.strip()
+            if part.isdigit():
+                out.add(int(part))
+        return out
+
+
+settings = Settings()