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+# Deep Dive Environment Configuration
+
+# Telegram (required for delivery)
+TELEGRAM_BOT_TOKEN=your_bot_token_here
+TELEGRAM_CHANNEL_ID=-1001234567890
+
+# Optional: LLM API for synthesis (defaults to local routing)
+# ANTHROPIC_API_KEY=sk-...
+# OPENROUTER_API_KEY=sk-...
+
+# Optional: Custom paths
+# OUTPUT_DIR=./output
+# CHROMA_DB_DIR=./chroma_db