docs: add TAVILY_API_KEY to .env templates

packages/cli/src/commands/init.ts

@@ -74,6 +74,9 @@ export const initCommand = new Command("init")
             "# INKOS_LLM_BASE_URL=https://api.openai.com/v1",
             "# INKOS_LLM_API_KEY=your-api-key-here",
             "# INKOS_LLM_MODEL=gpt-4o",
+            "",
+            "# Web search (optional):",
+            "# TAVILY_API_KEY=tvly-xxxxx",
           ].join("\n"),
           "utf-8",
         );
@@ -95,6 +98,9 @@ export const initCommand = new Command("init")
             "# INKOS_LLM_THINKING_BUDGET=0          # Anthropic extended thinking budget",
             "# INKOS_LLM_API_FORMAT=chat             # chat (default) or responses (OpenAI Responses API)",
             "",
+            "# Web search (optional, for auditor era-research):",
+            "# TAVILY_API_KEY=tvly-xxxxx              # Free at tavily.com (1000 searches/month)",
+            "",
             "# Anthropic example:",
             "# INKOS_LLM_PROVIDER=anthropic",
             "# INKOS_LLM_BASE_URL=https://api.anthropic.com",